JPH02191924A - Motor drive camera capable of electric rewinding - Google Patents

Abstract

PURPOSE:To prevent the erroneous operation by providing an inhibiting means which inhibits rewinding of a film during exposure. CONSTITUTION:A rewind switch SW14 generates a film rewind start signal. An exposure control part 604 receives the start signal, and rotation is transmitted to a pinion 32, a first gear 33, a second pinion 34, a second gear 35, a third pinion 36, and a third gear 37 when a motor 600 which controls rewinding below is rotated. A shaft 164 and a first pulley 165 are rotated because the gear 37 is engaged with a rewind gear 163. A spool of a cartridge is rotated through a rewind fork 161 by rotation of the pulley 165 to rewind the film. When a rear curtain running completion switch SW4 detects exposure to generate a signal, an inverter INV11 receives this signal to inhibit rewinding of the film. Since the means to inhibit rewinding of the film during exposure is provided, the erroneous operation that the rewinding operation is erroneously performed during exposure to cause flow of a picture is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a motor drive camera capable of electric rewinding.

[Conventional technology]

As electric hoisting devices have become popular in recent years, electric rewinding devices have become increasingly important because they perform rewinding operations quickly as well as winding operations.

However, if you try to rewind the camera while it is exposed, the image will drift and the shot will fail.

In order to prevent this, there is a method that closes the shutter and ends the exposure when rewinding in the above state,
Make the rewind operation complicated, for example, by doing it twice.
Methods have been implemented to prevent inadvertent rewinding.

However, these have drawbacks such as improper exposure or incomplete prevention of malfunctions.

(Section 8 to be solved by the invention) Therefore, the present invention aims to prevent erroneous rewinding operations during exposure.
L/ The objective is to provide a motor drive camera capable of electric rewinding that eliminates failures in photographing.

[Means for Solving the Problems] In order to solve the above problems, a motor drive camera capable of electrically rewinding according to the present invention includes a rewinding operation means (SW14) that generates a film rewinding start signal.

Rewinding means for rewinding the film (32~37°159.16
1,163-166), a motor (600) for driving the rewinding means, and a control for controlling film rewinding of the motor and the rewinding means in response to a @rewind start signal of the rewinding operation means. means (604); and detection means (604) for detecting that exposure is in progress and generating a signal.
SW4), and inhibiting means (rNVl) for inhibiting the rewinding means from rewinding the film during exposure in response to the signal from the detection means.
l) was established.

[Function] The above configuration prevents malfunction of rewinding the film during exposure.

[Embodiment] FIG. 1 shows an embodiment of the present invention, a camera drive mechanism section.

The details of each part will be explained below in accordance with the sequence of photographic preparation operations.

First, in order to load the film 28, the key locking the back cover is removed by known means, the back cover can be opened, and the part 1 of the back cover moves to the lower left in FIG.

Then, the back cover interlocking lever 3 is moved to the shaft 4 by the biasing force of the spring 2.
It rotates to the left around , following part 1 of the camera back. As a result, the rewind release lever 5 fixedly attached to the lower side of the shaft 4 also rotates to the left, pushing one end 6a of the rewind holding lever 6. Therefore, this lever ε rotates to the right, the rewinding state is released, and the relationship between the rewinding holding lever 6 and the rewinding button 7, which had been in the raised position, becomes the state shown in FIG. 1. The rewind state and its release will be described later.

Also, when the rewind release lever 5 is rotated to the left, its tip 5a is released from contact with the back cover opening/closing switch 5w12.5w17.
The switch Swl2 is turned off and the switch 5w17 is turned on. Therefore, even when the back cover is open, the motor 600 can be rotated to operate the spool 29 and sprocket 49, but this operation will be described later.

A bottle 3a is installed at the other end of the back cover interlocking lever 3, and as the bottle 3a rotates to the left, a winding limit lever 90 rotates around the shaft 8. One arm 9a of the winding limit lever 90 is pushed and the lever 9 is rotated to the right. .

A hoisting limit switch Sw5 is disposed behind this arm portion 9a, and is turned on when the hoisting limiting lever 9 is turned to the right.

This switch Sw5 is connected to a motor control circuit (Fig. 13) to be described later, and when the switch SW5 is ON, the circuit is connected to a fully pressed switch Sw located at the top in Fig. 1.
6 is turned on, the circuit configuration is such that the motor 600 rotates in the opposite direction to the arrow in the figure, that is, rotates to the right. Furthermore, when the hoisting limiter lever 9 is rotated to the right, the hook 9b at the tip of another arm moves to the left in FIG. 12 becomes rotatable.

When the back cover interlocking lever 3 turns counterclockwise, the number counter locking pawl 13
rotates to the right. That is, the pin 13c installed at one end of the locking pawl 13 is pushed to the left in the figure by the interlocking lever 3 rotating to the left, and the locking pawl 13 is pushed against the urging force of the spring 16 against the shaft 15. It is rotated to the right around. As a result, the number counter locking claw 1
The locking portion 13a of No. 3 is retracted to the left in the figure from the position where it is engaged with the sheet counting ratchet wheel 17 fixed to the lower end of the shaft 18.

Then, the ratchet wheel 17, the shaft 18 to which it is fixed,
The pneumatic transport cam 19 and the number board 20 fixed to the shaft 18 are integrally rotated to the left by the biasing force of the spring 21.

This rotation ends when the bin 22 installed below the number board 20 comes into contact with a stop plate 23 provided on a substrate (not shown). At this time, the letter S on the sheet count board 20 directly faces the index 24, indicating that the sheet count has been reset.

It should be noted that another feed pawl 25 can be secured to the sheet counter ratchet wheel 17, but its tip 25a is attached to the front left in the figure by the tip 13b of the sheet counter locking pawl 13 that rotates to the right. As a result, the feed pawl 25 is rotated counterclockwise by the rotation of the shaft 2T against the biasing force of the spring 26, and its pawl portion 25b is retracted from the locking position with the sheet counting ratchet wheel 17. Therefore, this feed pawl 25 does not hinder left rotation of the ratchet wheel IT. This is what happens when you open the back cover. When the back cover is opened, the film is loaded, but during this time the motor 6
00 does not rotate.

Next, the operation from loading the film until the preparation for photographing the first frame is completed, that is, the operation of empty film feeding by the film feeding system will be explained. When the tip of the film 28 is inserted into the groove 29& of the spool 29 and the push button 100 is pressed, the push button switch Sw6 is turned on via the half-press switch Swl3. At this time, the winding limit switch Sw5 has already been turned on, and when the motor control circuit described later detects this, the motor 600 rotates in the opposite direction to the arrow in the figure (clockwise rotation) as described above. begins to This rotation causes the pinion 32 and worm 58 fixed to the shimotor shaft 31 to rotate to the right, and the gears 33, 59 and 60 to rotate in the opposite direction to the arrow (left rotation). The rotation of the pinion 32 is controlled by the first gear 33, the second pinion 34 integrated with this, the second gear 35, and the third gear integrated with this.
The signal is transmitted to the pinion 36 and the third gear 31, and the third gear 37 is rotated in the direction opposite to the arrow in the figure (left rotation).

The reduction gear train from the pinion 32 to the third gear 31 includes a small motor 600 for film transport, 9
This is to obtain the necessary torque.

A film feed plate 39 is fixed below the shaft 38 to which the third gear 37 is fixed, and similarly to the gear 37, it rotates in the opposite direction to the arrow in the figure. During this left rotation, the protrusion 39& of the film feed plate 39 and the hook portion 40a of the film feed pawl 40 engage with each other. Since the rotation shaft 41 of the film feed claw 400 is embedded in the fourth gear 42, the fourth gear 42 also starts rotating in the same direction. Therefore, the spool 29 is rotated (left-handed) in the direction of the arrow in the figure via the known spool friction mechanism 43, and the film 28 is wound onto the spool 29.

On the other hand, the rotation of the fourth gear 42 is transmitted to the fifth gear 44 and the sixth gear 45, but the rotation is directly transmitted to the sprocket shaft 41.
It is not the rotation of

The circumstances will be explained with reference to FIG. As mentioned above, the rewinding state is released by turning the rewind holding lever 6 to the right, but when the rewinding of the previously used film is finished, the sprocket installed at the top of the sprocket shaft 4T generally The phases of the upper pin 471 and the groove 45a provided at the upper part of the sixth gear 45 do not match. For this reason,
Although there is a biasing force from a sprocket shaft lowering spring (not shown), the sprocket upper pin 47m remains in contact with the upper surface 45bK of the sixth gear 45 as shown in FIG. Therefore, the sprocket shaft 47 does not rotate as the sixth gear 45 rotates, and the sprocket pin 48 installed anywhere inside the shaft 47 also does not rotate. Therefore groove 491
The rotation of the sprocket 49, which can only move up and down relative to the pin 48 via the gear 48, is also not controlled by the sixth gear 45. Therefore, at this point,
Film 28? It is moved by being wound around the spool 29, and perforations (not shown) mesh with the teeth 49b of the sprocket 49 to drive the sprocket 49 and the sprocket shaft 41.

However, as is well known, when they are linked by the same drive source, the spool 29 is set to take up more film 28 than the sprocket 49, so as the film 28 advances, At a certain point, the sprocket upper pin 47a and the groove 45a match in phase and engage with each other, and as the sixth gear 45 rotates, the shift film 28
Normally, the amount of feed is determined. This embodiment also operates in a similar manner.

Returning to FIG. 1 again, the count-up of the number of sheets will be explained. A sprocket upper gear 50 is fixed above the sprocket shaft 47 and is constantly engaged with a number counter gear 51. The shaft 21 is installed at an eccentric position on the gear 51, and while the sprocket shaft 47 is rotating, that is, while the gear 51 is rotating via the gear 50, the l end of the shaft 21 is attached to the shaft 21. The 25 feed pawls connected to each other reciprocate approximately in the left-right direction in FIG.

At this point, the back cover is already closed and the part 1 is turning the back cover interlocking lever 3 to the right, so the urging force of the spring 16 causes the number counting locking pawl 13 to turn to the left, as shown in FIG. The locking portion 13 of the locking pawl 13 & the ratchet wheel 17 for counting the number of sheets.
takes a collatable position.

As the counter locking pawl 13 rotates to the left, its tip 13b moves to the right in FIG.
When a is movable to the upper right in the figure, the feed pawl 25 is rotated to the right by the biasing force of the spring 26, and the pawl portion 25b is brought to a position where it can be engaged with the sheet counting ratchet wheel 11. For this reason, although it is well known and will not be described in detail, the rotation of the sprocket 49 by one frame of the film 28 rotates the gear 51 and reciprocates the feed pawl 25, and the pawl portion 25b moves the ratchet one tooth at a time. Car 17 is turned to the right. As a result, as the film is fed, the number plate 2° rotates from "S" to the position where "1" faces the index 24.

During this time, the winding limit plate 12 mounted on the sprocket shaft 47 rotates multiple times. At that time, the winding limit lever 9
Since the shaft 8 is biased in the counterclockwise direction by the spring 52, the shaft 8
The hook 9b is rotated counterclockwise and the hook 9b is attached to the outer circumference 1 of the limit plate 12.
2b, the notch 12a and the hook 9b
There is a risk that when the two are directly facing each other, they may engage with each other, interrupting subsequent film feeding. Despite this situation, in order to enable blank feed up to the first frame, the number of sheets was 20.
The protruding portion 19m of the idle feed cam 19, which operates integrally with the hoisting lever 9, comes into contact with the arm portion 9c of the hoisting limit lever 9, preventing it from rotating to the left. However, since the structure is such that the contact is released just before the number "1" on the sheet count board 20 directly faces the index 24, the lever 9 is rotated to the left after the film 28 has been fed by a predetermined amount. Then, the hook 9b falls into the notch 12m, and film feeding is mechanically blocked. Total number of sheets: 20
While rsJ indicates "1", the hoisting restriction is inactive. Therefore, the arm 9a of the lever 9
The winding limit switch Sw5, which had been pressed, is turned OFF.
F and Nashi, the motor 60 is controlled by the action of the control circuit 185, which will be described later.
The power supply to 0 is cut off, and the film empty feeding is completed.

Here, a note will be made regarding the function of the winding limit holding lever 53. This lever 53Vi spring 55 biases the rotation of the shaft 54 in the clockwise direction, and the pin 53b planted thereon is in contact with the recess 12e provided on the outer periphery of the winding limit plate 12. Only occasionally can the tip 9d of the winding limit lever 9 be locked with the tip 53a. The tip 53a of the lever 53 is dimensioned to lock the tip 9d only when the lever 9 is rotated sufficiently far to the right.

When the winding limit lever 9 rotates to the right by a large amount, when the camera back is opened, the pin 3a on the camera back interlocking lever 3 and the arm 9
jL, and when the pin 9e on the limit lever 9 is pushed at its end by left rotation of the intermediate lever 56, which will be described later. Note that when the outer circumferential portion 12b of the winding limit plate 12 and the hook 9b are in contact with each other, the right rotation angle of the limit lever 9 is small.
Tip 53a does not engage tip 9d. Therefore, the lever 9 can rotate to the left from the state in which the hook 9b is in contact with the outer peripheral portion 12bK without being blocked by the hoisting limit holding lever 53, and can fall into the notch 12a of the limit plate 12.

During this empty feed, squeeze! 1179, shutter first curtain 115
Neither the rear curtain 1151 nor the quick return mirror held by the holding frame 132 is driven. Each of these will be explained in detail later.

Next, the photographing and the subsequent winding operation will be explained.

When the push button 100 is pushed down again in FIG. 1, the half-press switch Swl 3 is turned on. This starts energizing a part of the circuit which will be described later.

The light passing through the lens T8 is reflected by a quick return mirror held by the holding frame 132 and enters the light receiving element PD. The output of the light receiving element PD is introduced into an exposure control circuit and calculated. Next, when the push button 100 is pressed down further, the full press switch Sw6 is turned on and the photometry result by the light receiving element PD is stored by the exposure control circuit.

Further, when the switch Sw6 is turned ON, other operations such as those described below are also started. That is, at this time, the winding limit switch S
Since W5 is 0FPK, the motor 600 rotates in the direction of the arrow in Figure 1 (left rotation) due to the action of the motor control circuit.
Start. Therefore, the pinion 32 fixed to the motor shaft 31 and the worm 58 rotate. Since the first gear 33 is always engaged with the pinion 32, and the seventh gear 59 and the tenth gear 60 are always engaged with the worm 58, they start rotating in the directions of the arrows at the same time.

First, a system K (hereinafter abbreviated as "film feeding system") that is interlocked with the meshing of the pinion 32 and the first gear 33 will be explained. The rotation of the motor shaft 310 is converted into an appropriate rotation speed and torque by the reduction gear train, and the third gear 31 is rotated in the direction of the arrow in the figure (clockwise rotation). 3rd gear 31
As the shaft rotates to the right, the shaft 38 to which it is fixed also rotates,
A rotation regulating plate 61 and a film feed plate 3 fixed to this
9 are both rotated (clockwise) in the direction of the arrow in FIG.

A mirror raising locking pawl 62 is urged by a spring 63 in the counterclockwise direction and comes into contact with the outer periphery of the rotation regulating plate 61, and the regulating plate 61 rotates only a predetermined angle from the state shown in FIG. When turning to the right, the locking portion 61a of the regulation board 61 is locked and the regulation board 61 is rotated to the right.
prevent rotation. As a result, this acts as a stopper in the diaphragm drive system, mirror drive system, and shutter charge system, which will be described later. The film advance plate 39, which is also fixed to the shaft 38, is at a position where its protrusion 39& and the hook portion 40a of the film advance claw 40 engage with each other when shooting starts, but since the advance plate 39 rotates to the right, it is not locked. is released and rotation is not transmitted to the feed pawl 4o. Therefore in this case KF
Unlike the above-described film feed, the film is not fed because the fourth gear 42 and the following do not rotate.

In the middle of the above clockwise rotation, the pin 37m fixed on the third gear 37 pushes the arm portion 65a of the winding restriction release lever 65, and against the action of the spring 66, the lever 65 is rotated 67 times to the left. However, since the pin 68 implanted in the other arm of the release lever 65 moves away from the one end 56a of the intermediate lever 56, it does not affect the lever 56. Therefore, by means of the lever 56, the limiting lever 9
is not rotated and winding is limited.

Next, a system that is linked to the meshing of the worm 58 and the seventh gear 59 (hereinafter abbreviated as "aperture drive system J") will be explained. (clockwise rotation), the shaft 69 to which this is fixed, the eighth gear 70, and the narrowing cam 71 all begin to rotate in the same direction as one.However,
Since the rotation regulation plate 61 in the film feeding system is restricted from rotating to the right by the mirror raising locking pawl 62, the rotation of the motor shaft 310 is restricted via the gear train, and the shaft 69 is also kept at a predetermined rotation angle. I can only turn right.

When the shaft 69 begins to rotate clockwise from the state shown in FIG. It is not possible to rotate around 730 degrees (left rotation). This is because the arm portion 102b of the lever 102 is in contact with the pin 74 implanted in the diaphragm holding lever 75. Therefore, the lever 102 works together with the diaphragm holding lever 75 to move the shaft T against the biasing force of the spring 76.
Turn left around I.

In this embodiment, it is assumed that the diaphragm interlocking lever T9, which is interlocked with the diaphragm mechanism of the lens 18, is receiving a downward biasing force in the drawing. This lever 79 is prevented from descending by the tip 80m of the aperture regulating lever 8o, and at that time the aperture is open. By turning the diaphragm holding lever 75 to the left, the hook portion 75m and the pin 81 implanted in the diaphragm regulating lever 80 are disengaged, and the diaphragm regulating lever 8o is moved by the biasing force of the diaphragm movement lever 79 and the spring 82. This allows the tip 80a to move in a downward direction (to rotate to the right as the shaft 84 turns). From this point onwards, the throttle restriction lever 80 rotates to the right from the state shown in FIG. Although it gradually decreases, it follows the cam 71 and rotates to the right around the shaft 84, and the diaphragm is tightened.

The amount of tightening of the diaphragm is determined by the resistor 302 and the regulation L//(-8
0 (7) When the resistance is measured by the brush 303 provided at one end 80c and reaches an appropriate resistance value calculated based on the previous measurement results, the set shutter speed, film sensitivity, etc., as will be described later. Coil 85 is activated by the exposure control circuit.
is energized. Then, the armature 88, which had been attracted to the yoke 8γ by the permanent magnet 8611C, temporarily loses its attractive force and loses the biasing force of the spring 89, and the armature 88, which has been attracted to the yoke 8γ by the permanent magnet 8611C, loses the force of the spring 89, and the armature 88, which has been attracted to the yoke 8γ by the permanent magnet 8611C, loses the force of the spring 89, and the armature 88, which has been attracted to the yoke 8γ by the permanent magnet 8611C, loses the force of the spring 89, and the armature 88, which has been attracted to the yoke 8γ by the permanent magnet 8611C, loses the urging force of the spring 89, and is pulled together with the aperture locking pawl 90 attached to it. Axis 9
Turn left to turn 1. Since the claw portion 90m of the locking claw 90 locks the enlarged gear train 93 consisting of gears 93a, 93b, 93c, etc., the aperture regulation lever 80 integrated with the gear 93c stops, and proper exposure is achieved. The aperture value that yields is set. The enlarged gear train 93 is installed to increase the resolution and accuracy of the aperture value setting.

Next, how the system (hereinafter abbreviated as "shutter charge system") that is interlocked with the meshing of the worm 58 and the first O gear 60 operates during this time will be explained with reference to FIG.

As the motor 600 rotates to the left, the gear 59 rotates to the right and at the same time the 10th gear 60 rotates in the direction of the arrow in the figure (left rotation).
Start. Then, the shaft 105 fixed thereto and the eleventh gear 106 fixed to the shaft 105 also rotate to the left.

As a result, the 12th gear 107, which is always engaged with the 11th gear 106, rotates to the right, and the leading charge gear 109, which is integrated with the shaft 108, also rotates to the right.

Gear 109 becomes leading sector gear 11 during its right turn.
0, and while the gear 110 remains engaged for a certain period, the gear 110 is rotated to the left by the rotation of the shaft 112, and when it eventually comes to correspond to the inner part where teeth are not formed, the leading charge gear 109 and the leading sector The gear 110 is disengaged, and from this point on, only the leading charge gear 109 continues to rotate to the right. The clockwise rotation of the gear 109 is stopped when the rotation regulating plate 61 in the film feeding system engages with the mirror raising locking pawl 62.

On the other hand, the leading sector gear 110, which has been disconnected from the charge gear 109, is moved to the first sector gear by the biasing force of the spring 111.
Return to the position shown in the figure. In this way, the front curtain sector gear 110 is erected on the front curtain arm 113 and the shaft 11
2, and at this time, the leading arm 113 provided coaxially with the gear 110 is pushed by the pin 114 provided at one end of the sector gear 110 and rotates to the left.
The hook portion 113a reaches a position where it can be engaged with the leading curtain claw 116. A pin 117 is separately provided on the sector gear 110, and as the gear 110 rotates to the left, the spring 11
Press 8. Due to the biasing force of this spring 118, the front curtain pawl 116
rotates to the right and presses the armature 119 attached to this pawl 116 against the yoke 120.

From now on, the joke 120 is
The armature 119 maintains the attracted state against the biasing force of the spring 122. In this state, the hook 116a of the pawl 116 and the key portion 113a of the arm 113 are held together against the front curtain drive spring (not shown), and the preparation for running the front curtain is completed. Note that the front curtain auxiliary arm 123 functions to support the front curtain 115 in cooperation with the front curtain arm 113.

Regarding the rear curtain, the operation is exactly the same from the rotation of the 12th gear 107 in the direction of the arrow in Fig. 1 until the rear curtain is ready to travel, so parts corresponding to the front curtain charging mechanism have the same number. are indicated with a dash, and detailed explanation will be omitted.

The operation performed as described above is an example of a known shutter charging operation, and this shutter charging is mainly performed during the narrowing down. This shutter charge has the effect of decelerating the shutter to accurately control the shutter speed.

In the process of narrowing down the above restrictions, the 8th gear 7
Since the gear 0 and the ninth gear 124 are always in mesh with each other, the shaft 125 also continues to rotate to the left. This shaft -25 is for driving the reflex mirror.

As the shaft 125 rotates to the left, the first arm 126 fixed thereto also rotates to the left. The shaft 127 implanted at the tip of this 7-arm 126 also rotates 125 times to the left at 9, and the tip 128 of the second arm 128 rotatably attached to the shaft 127
a moves to the right from the state shown in FIG.

Here, the shaft 131 implanted in the mirror holding frame 132 and the third
The arm 130 is rotatably coupled, and the mirror holding frame 132 is rotatable around an axis 64. Returning to the right rotation of the second arm 128, when the tip 128a moves to the right, the third arm 130 moves as shown in FIG.
The claw portion 133a at the tip of the leaf spring 133 fixed to the second
Since it is hooked on arm 128, this arm 128 and third arm 130 become engaged, and henceforth act as one arm. This acts as a rondo, and the first arm 1
A crank 26 rotates around the shaft 125, and a shaft 12γ functions as a crank pin, which functions to push up the mirror holding frame 132.

At this time, since an opening is provided in the enclosure 126a,
Movement of shaft 129 is not restricted.

Push it up by turning the shaft 1250 half turns.

The mirror holding frame 132 begins to rotate to the left around the shaft 64, and eventually the arm 132a provided integrally with the mirror holding frame 132 comes out of contact with the mirror lowering position switch Swl, and the switch Swl is turned off. This switch Swl is turned off during the left rotation of the shaft 125, and as described above, the shutter charging operation is also being performed during this time.

Now let's go back to the shutter in the middle left corner.

Another arm 113'a is integrally provided with the trailing curtain arm 113', and by the action of charging the shutter, the arm 113' rotates to the left around the support 112', and the rear curtain travel completion switch Sw4 and the arm The contact with 113'a is released and the switch SW4 is turned off.

The rear curtain run completion switch Sw4 is configured to be turned off before the mirror lowering position switch Swl is turned off.

The functions of these two switches will be described later.

Let's return to the mirror system again.

In the crank mechanism described above, the gear ratio of the eighth gear 10 and the ninth gear 124 is adjusted so that the first arm 126 is substantially in a straight line with the second arm 128 and the third arm 130 when the shaft 125 turns left by half a rotation. is set. That is, this is the time when the rotation regulating plate 61 in the film feeding system and the mirror upward locking pawl 62 are engaged.

FIG. 4 shows the state when the mirror has finished rising. In this state, the arm 132 provided integrally with the mirror holding frame 132
A turns on the mirror stop switch Sw7 when the frame 132 has finished rising. This signal causes the motor 600 to stop under the action of the control circuit. It is assumed that the motor 600 has a slip mechanism (not shown) and is capable of slipping when its rotation is stopped by an external force. This is not shown because it is a well-known and common-sense accessory mechanism when the camera is driven by a motor.

If the condition shown in Fig. 4 continues for too long, the 27th arm 128 and the third arm 13G, which are in a straight line, will become attached to the shaft 12 in the figure.
There is a concern that 9 will buckle in the direction of movement to the right. In order to deal with this, it is desirable that the leaf spring 133 have a biasing force to come into contact with the back surface of the second arm 128. In this way, the back side of the second arm 128 and the temporary spring 13
Since a frictional force exists between the surfaces of 3 and 3, buckling can be prevented.

In the manner described above, the aperture was stopped down from the open aperture to the desired aperture, the shutter was charged, and the reflex mirror was retracted from the optical path to prepare for the lightning operation of the shutter.

When the leading coil 135 is energized at an appropriate timing, the attraction force of the permanent magnet 136 is temporarily weakened, and the biasing force of the spring 137 causes the armature 119 and the yoke 120 to
The leading claw 116 rotates to the left due to the loss of adhesion to the hook 11.
6a, the engagement of the hook portion 113a of the leading curtain arm 113 is released, so that the leading curtain 115 travels by the force of the leading curtain drive spring (not shown). Next, when the trailing curtain coil 135' is energized at a time when the set shutter speed can be obtained, the trailing curtain 115' runs in exactly the same way as the leading curtain. Near the beginning or end of the trailing curtain run, the trailing curtain switch SW4, which had been OFF in the charged state up to that point, comes into contact with another arm 113'aK of the trailing curtain arm 113', and is turned ON.

In response to this signal, the motor 600 starts rotating (clockwise) in the opposite direction to the arrow in the figure, either immediately or after a suitable time lag, by the action of a control circuit to be described later. Then, the mirror returns and the aperture is opened, and each part returns to the state shown in FIG.

First, regarding the return of the mirror, when the seventh gear 59 rotates to the left, the rotation is transmitted to the eighth gear 70 and the ninth gear 124, and the shaft 125 and the first arm 126 begin to rotate to the right.

Accordingly, the second arm 128 and the 37th arm 1
30 is pulled downward in FIG.
goes down from the rising state shown in FIG. Then, when the first arm 126 faces downward, the enclosing part 126a comes into contact with the shaft 129, and the two return to the state shown in FIG. That is, when the mirror returns, the holding frame 132 is lowered by the rotation (clockwise rotation) of the shaft 125, and thereafter does not move at all.

No matter how many times the shaft 125 rotates to the right in this state, the arm 1
26 and arm 128 are connected to shaft 125 together via pin 127.
and 129, the claw portion 133a of the leaf spring 133
Because of the taper portion 133b (FIG. 4) provided behind the third arm 13, even if the second arm 128 comes into contact with the leaf spring 133, the claw portion 133a is displaced and escapes.
0 does not rotate and the mirror holding frame 132 does not move.

When the holding frame 132'' rotates to the right around the shaft 64, the mirror stop switch 5W7Fi is switched from on to off, and the mirror lowering position switch SW7 is switched from off to on, contrary to when it is turned to the left.

At the beginning of the return operation of the mirror, the pin 127 contacts one end 306a of the reset lever 306 and rotates the lever 306 to the left around the axis 307 against the biasing force of the spring 308, so that the other arm 306b of the lever 306 The armature 88 moves upward in the figure and presses the magnetic reset spring 13, causing the armature 88 to be attracted to the yoke 87. Therefore, the engagement between the locking portion 90m of the locking pawl 90 and the gear 93m is released, and the gear train 93 becomes rotatable.

Next, the opening operation of the aperture will be described. As the gear 59 turns left, the aperture cam 71 also turns left, but there is a portion where the lift amount is constant.
After the engagement is released, the amount of lift is gradually increased. Therefore, the pin 83 is pushed upward, and the aperture regulating lever 80 is rotated to the left to raise the lever 19, so that the aperture of the lens 78 is opened. When the lever 80 turns left, the aperture holding lever 75 turns right due to the biasing force of the spring 76.
Since the hook portion 75a locks the pin 81, the open state of the aperture is maintained. Note that as the aperture cam 71 rotates to the left, its tip 71a lifts up the end 102a of the holding release lever 102, but at this time, the lever 102 only rotates to the right against the spring 141, and the aperture holding lever 75 rotates to the left. Never. Therefore, no matter how many times the aperture cam 71 rotates to the left, the aperture remains open.

When the aperture regulating lever 80 turns left, the enlarged gear train 93 also rotates, but at this time the aperture locking pawl 9 has already been turned.
The claw portion 90a of 0 does not lock the gear 93m.

In this way, the motor 60 (after lt exposure, rotates to the right and rotates the shaft 69
When the mirror is rotated to the left, the mirror is returned to the photographing optical path, and the diaphragm is returned to the open state, and the aperture can then be rotated to the right while maintaining this state.

Next, the operation of the shutter charge system during this period will be explained. As the motor 600 rotates to the right after exposure, the 10th gear 6
0 begins to rotate (clockwise) in the direction opposite to the arrow in the figure, the leading charge gear 109 rotates to the left, and when it meshes with the leading sector gear 110, the gear 110 is rotated by the spring 1.
Rotate to the right against the action of 11. However, gear 11
Since the bottle 114 installed at 0 is rather moving away from the leading arm 113, the leading arm 113 does not move at this time. Similarly, the rear curtain arm 113' does not move.

After that, the engagement between the leading charge gear 109 and the leading sector gear 110 disengages, and the leading sector gear 11
0 rotates to the left by the biasing force of the spring 111 and returns to the position shown. Similarly, the rear curtain sector gear 110 also rotates to the right after the spring 1.
11' causes it to turn left and return. In this way, the shutter charge system is also configured so that it does not matter how many times the motor 600 is rotated to the right after exposure.

Next, we will explain the operation of the film transport system. When the post-exposure motor 600, that is, the binion 32 rotates to the right, the third gear 37 rotates to the left via the reduction gear train. At this time, the bin 37a installed in the third gear 37 also moves accordingly, and in order to push the arm portion 65a of the winding restriction release lever 65, this lever 65 rotates to the right.

Accordingly, the bottle 68 installed on the lower surface of the other end of the lever 65 pushes the arm portion 56m of the intermediate lever 56, so that the lever 5G rotates to the left. As a result, the other arm portion 56b of the lever 56 is attached to the bottle 9 that is implanted at one end of the hoisting limit lever 9.
As you press e, this lever 9 rotates to the right, and the hook 9b at the tip
The engagement with the notch 12a of the hoisting restriction plate 12 is disengaged, and the hoisting restriction plate 121-i becomes rotatable. That is, the motor 60
By driving 0, the winding restriction can be reliably released. Along with this, the tip 9d of the lever 9 is locked with the tip 53aK of the hoisting limit holding lever 53, and the hoisting limit release state is maintained.

When the third gear 37 turns to the left, the rotation regulating plate 61 simultaneously starts to turn to the left from the position where it is locked by the mirror lift locking pawl 62, and the film feed plate 39 rotates in the same direction. Then, as shown in FIG. 1, when the projection 39a of the feed plate 39 and the hook portion 40a of the film feed claw 40 engage,
Gear 42 begins to rotate to the left. When the gear 42 rotates, the spool 29Fi rotates in the direction of the arrow via the friction mechanism 43.

The rotation of the fourth gear 42 is also transmitted to the fifth gear 44 and the sixth gear 45, and the sprocket shaft 47 also rotates to the left through the engagement between the groove 45a and the sprocket upper pin 46. The film 28 thus advances.

Shortly after the film starts to advance, the maximum outer diameter portion 12b of the winding limit plate 12 instead of the convex portion 12e comes into contact with the bin 53b installed in the winding limit holding lever 53. This lever 53 is attached to the shaft 54 by the action of a spring 55.
Rotate to the left around , and release the lock of the tip 9d of the lever 9. In other words, the hoisting restriction release holding state is thereby released. Therefore, the lever 9 is rotated to the left by the action of the spring 52, and its hook portion 9b comes into contact with the maximum outer diameter portion 12b of the limit plate 12.

After this, the part of the notch 12 will be opposed to the bottle 53b, but the shape of the pin 53b is round, and if the winding limit holding lever 53 is rotated to the right by a predetermined amount or more, the winding limit lever 9 By being restricted by the tip 9d, the bottle 53b does not fit into the notch 12a and stop the winding limit plate 120 rotations.

When the winding limit plate 1-2 rotates and its notch 12a faces the hook 9b of the winding limit lever 9,
The two mesh with each other, and the limit plate 12 becomes unable to rotate, and subsequent winding will no longer proceed. This completes the winding of the film. At the same time, the arm 9a of the winding limit lever 9, which rotates to the left, is displaced to the right in FIG.
The winding limit switch 5W5fi turns OFF, and the motor control circuit detects this and stops the right rotation of the motor 600.

During this time, the sprocket upper gear 50 and the number counter gear 51, which are fixed to the sprocket shaft 47, continue to rotate, and as the feed pawl portion 25 moves to the left in FIG. The wheel 17 is advanced by one tooth, and the advanced scale of the number plate 20 is opposite to the indicator 24. On the other hand, when the feed pawl 25 returns to the right, the locking portion 13a of the sheet counter locking pawl 13 prevents the sheet counting ratchet wheel 17 from reversing. Also, during this film feeding, the aperture drive system, shutter charge system, and mirror drive system are all idle.

The above is an explanation of the operations related to photographing and subsequent film feeding. In order to perform the next photographing, the push button 100 can be pressed again and the above-described sequence will be repeated.

Next, the rewinding operation after one film has been photographed will be explained. When the rewind button 7 is pushed upward, the sprocket shaft 47, which is always biased downward, rises, and the one end 6b of the rewind holding lever 6 is placed under the stepped portion 7a of the button 7 due to the biasing force of the spring 139. Keep the entry sprocket shaft 47 in the raised position.

As the rewind holding lever rotates to the left, the rewind button switch SWI5, which has been on until now, is turned off.

The function of this switch 5W15 will be described later.

As the shaft 47 rises in this manner, the sprocket upper bin 47
1L escapes upward from the groove 45a of the sixth gear 45, and the sprocket 49 and sprocket shaft 47 are connected to the sixth gear 4.
5 and the gears 44 and 42 that are interlocked with it so that it can rotate freely.

On the other hand, sprocket upper gear 50, Subro, Kerato shaft 4
7, so when the shaft 47 is raised, the gear 50 is also in the raised position, and the rewinding interlocking second lever 15 is moved by the conical portion 50m provided on the gear 50.
Rotate 0 to the left around @152 against spring 151. A second rewind lever 153 is similarly fixed to the shaft 152 of the lever 150, and when the lever 150 is rotated to the left, its tip 153aH moves to the left in FIG.

Next, when the rewind lever 155 is turned approximately 90 degrees clockwise, the rewind cam 157 integrated with the shaft 156
The rewinding shaft 158, which is rotated by the same angle and is urged downward, is raised by this cam 157. Axis 14MIF
It is held movably up and down by a pulley 159 via an i-bin 158a and a long hole 159a, and is equipped with a rewinding fork 161 at its upper end. When the shaft 158 rises, the fork 161 engages with a spool of a cartridge (not shown). It becomes possible. When the cam 157 turns clockwise, the rewind switch 5W1
4 is pressed and it turns ON. In response to this signal, the motor 600 starts to rotate clockwise due to the action of the control circuit, and the film feed plate 39
rotates to the left, and the engagement between the feed plate 39 and the film feed pawl 40 is soon released. In other words, when the rewind button 7 is pressed and the tip 153a of the lever 153 moves to the left, winding of all the films is completed, and in most cases, the winding becomes impossible before the final winding is evenly completed. Therefore, although the protrusion 40bFi of the film feed claw 40 is not necessarily in a position opposite to the tip 153a of the second lever 153, when the film feed plate 39 rotates to the left due to the rewinding operation, the protrusion 40bFi of the lever 153 moves within one rotation. Pushed by the tip 153a, the hook portion 40m is displaced to the right in FIG. 1, and the engagement with the projection 39a of the feed plate 39 is released.

On the other hand, since the third gear 37 and the rewind gear 163 are always in mesh with each other, when the gear 37 rotates to the left, the shaft 164 and the first pulley 165 to which it is fixed rotate to the right. 1st
A belt 166 is stretched between the pulley 165 and the second pulley 158 with tension given by a slack removing roller 167. Therefore, when the first pulley 165 rotates to the right, the second pulley 158 also rotates in the same direction, and due to the engagement between the vertical groove 159a provided on the upper part of the second pulley 158 and the bin 158a, the unwinding shaft 159 to which the bin is attached also rotates. do. Therefore, a spool of a cartridge (not shown) is rotated via the rewinding fork 161, and the film is rewound.

At this time, as described above, the sprocket 49 can be freely reversed, but the spool 29 can be reversed by the slip of the friction mechanism 43, as in the conventional mechanism. When the rewinding of the film is completed, the roller 801 that was rotating in contact with the film is no longer pressed by the film 28, so it is displaced forward in the figure by the biasing force of the switch SWI 6, and the roller is attached. The lever 802 rotates to the right around the shaft 803, and the switch S
WI 6 is turned on.

Therefore, the motor 600 is stopped by the control circuit.

After this, when the rewind lever 155 is returned to the position shown in FIG.
The rewind fork 161 descends and the rewind switch 5W
14 is also turned off.

Note that a reversal prevention pawl 189 is provided for curling the film 28 or to prevent the gear 42 from being rotated during rewinding. This completes the unwinding.

After this, you can open the back cover and take out the cartridge.

Next, we will explain the operation during multiple exposure.

Since the camera is always stopped with film advance completed, the multiple exposure command is performed before the first exposure is given. When the multiple exposure lever 171 is turned to the right, the shaft 172,
The multiple lever 173 also rotates to the right as a unit, and this lever 1
The tip 173a of 73 contacts the bottle 174.

Since the lever 173 pushes the arm portion 65b of the hoisting restriction release lever 65 when turning to the right, the lever 65 is turned to the left against the force of the spring 66 and held at that position by a mechanism (not shown). As a result, the arm portion 65g of the release lever 65 retreats from a position where it can engage with the pin 37a implanted in the third gear 37. Therefore lever 9 via lever 65.56
is never rotated to the right.

Also, by turning the lever 173 to the right, the same lever 173
The multiple identification switch SW2 in contact with the switch 5W2Vi is released and the switch 5W2Vi is switched from the on state to the off state. The function of this switch SW2 will be described later.

When a multiple exposure command is issued in this manner, the winding limit plate 12 does not become rotatable even when the motor rotates to the right at a predetermined rotation angle (mirror return stroke) after exposure (travel of the trailing curtain is completed). Therefore, the clockwise rotation of the motor 600, that is, the counterclockwise rotation of the gear 37, is mechanically prevented at the time when the film feed plate 39 and the film feed pawl 40 engage, and the inertia of the motor 600 prevents the film from continuing to feed. This is a phenomenon different from the photographing operation described above. That is, when photographing, the bin 37a rotates the lever 65 to the right in the middle of the mirror, thereby causing the lever 9 to rotate to the right via the lever 56, and the winding limit plate 12 is locked by the winding limit lever 9. It had been lifted.

The motor 600 is energized by a multiple switch movement of the pin 37g provided in the third gear 37,
By turning the switch to the left around 7, the multiplex stop switch SW3 is turned on, and the control circuit that detects this turns off the switch. At that point, the locking portion 39 of the feed plate 39
This is before the hook portion 40a of the feed plate 40 is engaged with the hook portion 40a of the feed plate 40.

In the above-mentioned normal shooting mode, the rear curtain switch SW4 is set to O in relation to the shutter operation due to the action of the control circuit.
When N is reached, the motor 600 starts rotating to the right, and the winding limit switch SW5 becomes -HON as the mirror returns, and when the film feed is completed and is turned off, the power to the motor 600 is cut off. However, in the case of multiple shooting mode, the switch 5w5Vi remains OFF even when the mirror returns, so if this switch SW5 is OFF and the switch SW3
When is ON, the motor 600 is stopped by the action of the control circuit. With this, the first exposure is completed.

Next, the second exposure is performed, but in this case, the multiple exposure lever 17 is pressed before pressing the release button 100.
1 manually to the left to return to its normal position, or by rotating it to the left by a known method related to the first exposure, the winding restriction release lever 6
5 is rotated to the right by the biasing force of spring 66 and returns to the position shown, performing the operations detailed above.

That is, after the second exposure is completed, the film 28 is advanced by a uniform distance and then stopped. The situation is exactly the same for multiple exposures such as triple exposure or more, and it is sufficient to return the lever 171 to its original position before pressing the button 100 for the final exposure.

Here, if the photographer forgets to manually return the multiplex lever 171 before the final exposure of the multiple exposure, the film will not advance even after the final exposure, so the next shooting will be a new screen shot. Instead, unintended re-exposure will be performed on which multiple exposure screen.

Therefore, a modified example is shown in which the return operation of the multiplex lever 171 in FIG. 5 is performed not before the last exposure of the multiple exposure but after the last exposure.

A lower arm 65 is attached to the shaft 1720 that is integrated with the multiplex lever 171.
1 is fixed, and when the multiple lever 171 is rotated to the right, the cam 651 presses one arm 652a of the lever 652 from the side. Therefore, the lever 652L is rotated to the left around the shaft 653 against the biasing force of the spring 654. cam 6
51 further turns to the left and climbs over lever 652. Since the lever 652 is no longer interfered with by the cam 651, it rotates to the right and returns to the illustrated position, and is held at that position. At this time, the lever 173 rotates the lever 65 to the left, thereby retracting its arm 65a from the rotation path of the bottle 37a in FIG. The shaft 653 is implanted in the lever 655, but the spring 657
Since the lever 655 is biased in the counterclockwise direction by the biasing force, the lever 655 does not move due to the counterclockwise rotation of the lever 652.

However, after the last shooting of the multiple exposure, the multiplex /<-17
1 is rotated to the left, the cam 651 catches the tip of one arm 652a of the lever 652, presses it, and attempts to rotate the lever 652 to the right.

However, <-652u, the bin 655a of the lever 655
Since the lever 655 is in contact with the shaft 656, it cannot be rotated clockwise, and this pressing force causes the lever 655 to rotate clockwise about the shaft 656.

A bottle 658 is implanted at the tip of one arm of the lever 655 and can come into contact with the lever 56 explained in FIG. 1, so that the lever 56 rotates to the left, which is also explained in FIG. 1. The hoisting limit lever 9 also rotates to the right in conjunction with this.

At this time, the winding limit switch SW5 shown in FIG. 1 is turned on, and film feeding is started by the action of the circuit. In other words, on the screen after multiple exposure, the film 28 is transferred to the spool 2.
9 and moves to be wound up, and the next unexposed screen stops facing an aperture (not shown). The end of film feeding is the same as previously explained, so it will not be discussed again.

This concludes the explanation of multiple shooting.

However, this mechanism can be used for taking pictures in situations where the sound of film winding is avoided. That is, the pre-shooting multiple lever 171 is rotated to the right to prevent film winding immediately after exposure, and when the winding sound is allowed, the lever 171 is rotated to the left to wind the film. be able to.

The relationships between the operations of each prefecture and the switches that restrict them are summarized above based on Figure 6. The push switch SW6 is on when the diagram shows a high level, and off when the diagram shows a low level. When the motor 800Fi diagram is above the reference line indicating when the motor is stopped, it indicates left rotation, and when it is at the end, it indicates right rotation. The diagram of resistor 302 shows its resistance level. The diagram of the coil of the aperture control magnet 85 shows the current value. The diagram of the mirror holding frame 132 shows rising and falling.

The mirror lowering position detection switch SW7 and the mirror stop switch 5W70 are on when the level is high and off when the level is low. In the diagram of the shutter front curtain 115, the direction below the reference line is the charging direction, and the reference line is the travel completion position. The same applies to the shutter rear curtain 115'. The coil diagram for the leading magnet 135 shows the current. This also applies to the coil 135' for the trailing curtain magnet. Regarding the diagrams of the trailing curtain run completion switch SW4, the multiple winding stop switch SW3, the winding limit switch SW5, and the film rewind end switch SWI6, a high level indicates on and a low level indicates off.

Here, the photographing sequence will be summarized according to the time chart shown in FIG. When the film counter shows "1", decide on the subject and turn on switch SW6.
The motor 600 rotates to the left, and the aperture drive system and shutter charge system are driven. In parallel with this, the mirror drive system is driven, and the holding frame 132 is raised from the observation position to the photographing position. When the holding frame 132 rises, the switch SW7 is turned on and the motor 600 is stopped. Subsequently, the leading curtain 115 and trailing curtain 115' charged for exposure run, and at this time, the excitation current of the magnets 135 and 135' is turned on.

When the trailing curtain 135 completes running, the switch SW4 is turned on, and the motor 30 begins to rotate to the right. As a result of this, the mirror holding frame 102 is lowered and the aperture is opened. Motor 600 continues to rotate to the right, driving the winding system and advancing the film one frame.

During this time, none of the aperture drive system, shutter charge system, and mirror drive system is driven. The clockwise rotation of the motor 600 is stopped when the switch SW5 is turned off. After all frames have been photographed, the button 7 is pressed to release the engagement between the bin 47a and the groove 45a, disconnect the motor 600 and the winding system, and engage the rewind coupling 161 with the cartridge. At the time of rewinding, the switch SWI 4 shown in FIG. 1 is turned on to start rewinding, and the motor 600 rotates to the right to store the exposed film in the cartridge. When the rewinding is completed, the switch 5W16 is turned on and the motor 600 is stopped. Note that during multiple exposure, if the switch SW3 is busy turning on, the right rotation of the motor 600 is stopped and subsequent strokes are cut.

Now, a description will be given of the low speed drive, or silent mode, which allows the camera to operate as described above to operate extremely quietly.

Figure 7 is a schematic diagram of the external affairs of this camera.

Reference numeral 401 indicates an operation lever for the speed changeover switch, and the eighth
As shown in the diagram seen from above, it can be switched to three stages: H, N, and L.

Now, when the L index 402 and the lever 401 are made to face each other, a switch to be described later is switched inside the camera, and only the mirror return, aperture opening, and film advance steps shown in FIG. It will be controlled and driven at extremely low speed. Therefore, the time required for the aperture control process and the mirror raising process does not change, allowing the photographer to accurately capture a photo opportunity, and the accuracy of the aperture control also does not change, which is advantageous. On the other hand, the volume after shooting, which accounts for most of the camera's operational noise, can be kept extremely low.

Also, by utilizing this silent mode, a slow film feed K can be applied to prevent film damage in extremely cold regions.

Next, the replaceable battery pack 403 shown in Fig. 9 for the camera body 404 is replaced with another high power pack 405 shown in Fig. 10 that generates a higher voltage, as shown in Fig. @11. Thus, the contact piece 411 of the switch 406 inside the camera body switches from being electrically connected to the terminal 408 to being in contact with the terminal 407. That's pack 4
03, 405 has reference bins 409, 410, 409' and 4 of 410' for positioning.
Since the effective lengths h of 09 and 409' are different, the insulating part 41 at the tip of the contact piece 411 when attached to the camera body 404
It operates depending on whether you press 1ak or not.

Note that 412 and 412' are terminals for supplying power to the camera body 404. The camera body 404 is also provided with an appropriate receiving mechanism for these terminals and reference pins, but this is not shown because this is done by known means.

When the switch 406 is in the state shown in FIG. 11, when the lever 401 shown in FIG. The film feeding process is performed by controlling the shutter motor 600, which will be described later, at high speed.

Therefore, the time required for the aperture control process and the mirror raising process does not change, allowing the photographer to accurately capture the photo opportunity, and the accuracy of the aperture control does not change either, allowing the mirror to bounce due to faster operation. There is no need to worry about the shooting screen being turned on.

On the other hand, since the time required for one cycle of photographing is shortened, the probability of a photo opportunity increases.

FIG. 12 shows an embodiment of a circuit for controlling the mechanism shown in FIG. In the figure, the mirror lowering position switch SW is the first
As described in the figure, when the mirror holding frame 132 is lowered to a predetermined position, it is ON, and when it is raised, it is OFF.

As described in FIG. 1, the multiplex photography changeover switch SW2 is ON when the multiplex photography changeover lever 171 is in the normal photography position, and is OFF when it is in the multiple photography position.

As described in Fig. 1, the multiple winding stop switch SW is ON during a predetermined phase from just before the film feed is started, and during a predetermined phase from just before the film feed is completed, but otherwise. It is turned off.

As described in FIG. 1, the trailing curtain run completion switch SW4 turns ON when the trailing curtain of the shutter closes, and turns OFF when the shutter is reset.

As described in FIG. 1, the winding limit switch SW is turned on during the return process of the mirror, and turned off when film advance is completed.

The fully pressed switch SWa is the pushbutton 1 as described in Fig. 1.
It turns ON when 00 is pushed to the final stroke, and turns OFF when the push button is returned.

As described in FIG. 1, the mirror stop switch SW7 is turned on when the mirror holding frame 132 rises to a predetermined position.
When it descends, it turns OFF.

The SC selector switch 3W is a switch not shown in Fig. 1.When the not-illustrated selector lever selects the single-frame shooting mode, it is on the S side (ON), and when the continuous shooting mode is selected, it is on the C side. (OFF), single frame or continuous shooting is controlled as described later.

As shown in FIGS. 8 and 9, the selector switch SW is a switch in which the a or b terminal is selected in conjunction with the operating lever 401 of the speed selector switch. is on the a terminal side. Operation lever 4
Also linked to 01 are a variable resistor VR2 for varying the motor speed and a variable resistor VR for varying the detection time of the film end detection timer.

It is also linked to The interlocking relationship is that the resistance value of the variable resistor VR increases as the operating lever selects a higher motor speed, and the resistance value of the variable resistor VR3 decreases as the higher speed side is selected.

Switch SW. is the main power switch, which is not shown in Figure 1.
This is a switch that turns off the power f: when the camera is not in use, so that the camera will not take a picture even if the push button 100 in FIG. 1 is inadvertently operated.

The switch SW, shown in Fig. 1 is a power selector switch (not shown) that automatically switches to the 605 side when a connector for supplying an external stain source is inserted into the external power connector 605 of Fig. 12. is separated and connected to the external power supply. When the external power supply connector is not connected to the connector 605, the circuit is switched to be powered by the battery EB. The changeover switches SW, . . . may be the switch 406 shown in FIG. 11, and may be pressed so that the battery packs 403 and 405 shown in FIGS. 9 and 10 can be used selectively.

Back cover open/close switch SW! As mentioned in Figure 1, it is OFF when the back cover is open and ON when it is closed. The switch 5W17 in Fig. 13 is also a switch that is linked to open and close the back cover, and is linked to the release lever 5 in Fig. 1, and is ON when the back cover is open.

Turns OFF when closed.

As described in FIG. 1, the half-press switches SW, , turn on when the push button 100 is half-pressed, and turn off when the push button is returned.

Rewind switches S, W, 4 are rewind levers 155 in FIG.
When the switch is set to rewind, it is turned on, and when it is in the normal film advance position, it is turned off.

As described in FIG. 1, the rewind button switch SW, is OFF when the rewind button 7 is pressed to enable rewinding, and is ON during normal shooting conditions.

The film rewind switch SW, is ON when the film 28 is wound around the spool 29 as described in FIG.
F. Turns ON when the film comes off the spool or when there is no film.

A DC speed generator 601 connected to the motor shaft of the motor 600 is hidden from view in FIG. The power generation polarity of the DC speed generator 601 changes depending on the rotational direction of the motor 600. In FIG. 1, when the motor 600 is in a right-handed rotation state, the output of the speed generator 601 is connected to the diodes D, D.
, when the motor 600 is in the left rotation state, the diode D8. The connection point side with D4 becomes the positive pole, and the generated voltage is proportional to the rotation speed of the motor 600 in each polarity. Saki + + Aj9t t ”j in Figure 12
s corresponds to the aperture control magnet coil 85, the shutter front curtain start magnet coil 135, and the shutter rear curtain start magnet coil 135' in FIG. A variable resistor vR8 in FIG. 13 is a variable resistor for aperture control constructed by 302 and 303 in FIG. LE in Figure 12
D is a light emitting diode (not shown in FIG. 1) for displaying a warning during the multiple photography mode, which blinks during the multiple photography mode. LED.

is arranged in a known easily visible position such as inside the finder. The LED in Fig. 12 is a light emitting diode for warning display, which is not shown in Fig. 1, and it lights up when all the shooting of the film is completed and when rewinding is completed, and when rewinding, the rewind button is activated. It flashes if the operation is not performed. The LED may also be disposed within the finder in the same way as the LED.

Next, the operation of the circuit will be explained.

Since nothing is connected to the external power connector 605, the power supply selector switch SW is used to supply power to the circuit from the battery EB inside the camera.

is on the EB side. In the following explanation, the main power switch SW1° is turned on.

(1) Operation of the circuit when loading film (1) -1 Operation when the back cover is open At this time, as described in the explanation of Fig. 1, back cover open/close switches SW and 2 are OFF, and switch 5W17 is ON. The hoisting limit switch SW5 is ON.

Since the rewind lever 155 in FIG. 1 is in the normal position, the rewind switch SW1. is turned off. It is assumed that the switch SW is connected to the a terminal side. When pushbutton 100 is pressed in this state, half-press switch 5WIs
is turned on, transistor Q++ is controlled to be turned on via resistor Rst-, and the circuit is energized.

In FIG. 12, the circuits whose power supply lines are not particularly shown are energized by the transistor Ql+. When the transistor Qll turns ON, the transistor Q12 also turns ON, but since the switch SW is OFF, it has no effect on the control of the transistor Q++. Therefore, the circuit is energized only when the half-press switch 5WI3 is turned on. When the circuit is energized, at the beginning of energization, the inverter I
The output of NV4 is a shift flip-flop circuit (G?
, G8), (Gzo + Gtt), (G26 +
cwt) and other digital circuits (not shown). Due to the reset operation, the output of the NAND gate G is set to H, the G2° output is set to H, and the Gtl output is set to L. As described in FIG. 1, since the hoisting limit switch SW is held ON, the G3 output is the H1 inverter INV, and the output is L. Therefore, the G and output are held at H, and the setting operation of the flip-flop circuits G'r and Gs by the pushbutton switch SW6, which will be described later, is not performed.Since the rewind switch SW14 is OFF, the inverter INvl! Output beam, AND gate G161crt
+G231 G3+ output is L% G32 output is H.

The output of the inverter INV is high because the output of the NAND gate G7 is low.

Since the inputs of AND gate G are all H, the output is H, and the output of NOR gate G10 is L. transistor Q
Because of le u OF F, capacitor C6 is variable resistance V
The output of the comparator A2 is charged through R and i, but the output of the comparator A2 remains in the H state until the voltage of the capacitor C6 reaches a predetermined voltage, that is, until the predetermined time determined by the time constant circuit VRs + C@ has elapsed. . Therefore, ANDNO gate G10 output, AND gate GI4, OR gate cps
The output is H. The H output of the OR gate G,s is short-circuited to the capacitor C++' via the diode Do to the transistor Q+otON to discharge it and maintain the OFF state of the transistor Q. At the same time, since the transistor Qa is biased ON through the resistor, the transistors Q+ and Qt are turned ON.

AND gate G13 is L, so transistor Q.

G4, Qt is OFF. Therefore, current flows in the motor 600 in the direction of battery EB, transistor Q, motor 600, transistor Q, and current in this direction causes the motor 600 to rotate to the right. When the motor 600 rotates to the right, the DC speed generator 601 also rotates in the same direction, and as described above, the variable resistor vR2 and the resistor R?
A current flows through. When the rotational speed of the motor 600 increases, the voltage at the input terminal of the trap resistor R1 and the comparator A increases, and when it exceeds the reference voltage E, the voltage at the input terminal of the comparator A increases.
, the outputs of the transistors Qs and Qa become H, and the transistors Qs and Qa become ON. When transistor Q is turned on, transistor Q6 is turned off, and transistors Ql and Q7 are also turned off.
As a result, power is no longer supplied to the motor 600, and the rotation speed decreases. That is, since the rotation of the motor 600 is subjected to speed feedback, it is controlled to a predetermined rotation speed depending on the resistance value set in the variable resistor VR2.

The above speed feedback operation is performed when the changeover switch SWo selects the a terminal side in conjunction with the operation lever 401 of the speed changeover switch. When the selector switch SW is set to the b terminal side, that is, the highest speed is selected, the DC speed is generated at 60.
Since the generated voltage of 1 is not transmitted, no speed feedback operation is performed, and the motor 60 operates at the maximum speed depending on the voltage of the power source EB.
0 rotates. Turning on transistor Q+t in this state
, OFF state is not related to the control operation, so a description thereof will be omitted. When the half-press switch SW, , is turned off or a predetermined time determined by the time constant circuit VR,,C, has elapsed, the transistors Qa, Q+. should not be OFF, capacitor C+
+ k When a predetermined time determined by the resistor and the capacitance of the capacitor C11 has elapsed, the transistor Q turns on, and the diode D 11 + DI. Only transistors Q+ and (h are turned on for a predetermined time. Since the motor was rotating clockwise, diode D7 and transistor Q
2, the motor 600 is short-circuited, and the motor is braked and stopped rapidly. After the motor 600 stops, capacitor C0 is fully charged, transistor Q9 is turned off, and transistors Q, , Q2 are also turned off.
It becomes F. That is, in this state, while the half-press switch 5W13 is pressed, if the time is within a predetermined time determined by the variable resistor VR8 and the capacitor C6, the half-press switch SW is pressed.
,,While the iON is on, press the switch halfway again SV&'+
If the time that s is pressed is longer than a predetermined time, the motor 600 rotates to the right only during that predetermined time.

By the way, when the back cover is open, switch 3w,, is ON (,, so the reference voltage applied to the (+) side of comparator A! is lower than when switch SW,, is OFF. .

Therefore, for the same setting value of variable resistor VR, switch S
WI? The predetermined time until the output of the comparator A2 is inverted to LK when the switch 5WI7 is ON L is shorter than that when the switch 5WI7 is OFF. The reason for this is that, as will be explained later, it is necessary to make the timer time by the timer circuit vRs + e + At longer than the time required to wind the film to the first frame shooting position after closing the back cover. On the other hand, if the back cover is open for a long time, if the half-press switch SW is turned on for a long time, the film will be wound onto the spool more than necessary, resulting in wasted film. consumption will occur. This occurs because the user's pushbutton operations cannot keep up with the spool winding speed, especially when loading film in a high-speed winding state when the changeover switch SW is switched to the b terminal side. However, it can also occur due to carelessness. Therefore, in order to avoid such a situation, when the back cover is open, switch SW0 is turned on to shorten the timer time, and switch SW0 is turned on to lower the reference voltage and shorten the timer time. t” is turned ON to lower the reference voltage and shorten the timer time.The timer time is
The spool 29 shown in the figure is set within a range of about one rotation, and this is controlled in relation to the motor speed by a variable resistance VR, which is set in relation to the motor rotation speed. Therefore, in normal operation, the required winding i can be obtained by inserting the leading end of the film 28 into the take-up spool 29 and then continuing to press the push button 100 until the motor stops at a predetermined time determined by a timer.

(1) -2 Operation when the back cover is closed (1) As mentioned in the explanation of Fig. 1, the camera back cover is closed after the film 28 is reliably wound onto the spool 29 by the operation in -1. The film is automatically wound up to the shooting position of the first frame of the film. The operation is performed as follows.

When the back cover is closed, the back cover open/close switch SW, 2 is ON.
, SW, , are turned OFF, and the hoisting limit switch SWS remains ON. In this state, pushbutton 1
When 00 is pressed, the half-press switch SW is turned on, and the transistor QIl is turned on, so power is supplied to the circuit (
1) The motor 600 rotates to the right for the same reason as the operation in -1. Even if the half-press switch 5WI3 is turned off, the positive feedback operation of the transistor Q+2 will cause the resistor R8 and capacitor Cat to
The Q-th ON operation is maintained for a predetermined period of time (usually selected from about 20 seconds to several minutes), and power supply to the circuit is continued.

Accordingly, the film is fed, and when a predetermined amount of film is fed as described in FIG. 1 and reaches the -hook-eye photographing position, the winding limit switch SW is turned OFF. As described in FIG. 1, the trailing curtain run completion switch SW4 is turned OFF when the camera is released and the shutter is charged by turning the motor 600 to the left, so in this state it is ON, but the mirror 132 is not lowered. The mirror lowering position switch SW1 is turned on because the vehicle is descending to the lower position. Therefore, AND
Since the outputs of gates G and Gt are held at L, OR gate G is turned off by turning off the winding switch SW.
The output of , becomes L, and the AND gate G 9 + 014
+ OR gate cps output becomes L and motor 600
In the right-handed rotation state, the film suddenly stops and the film feeding operation ends. NOROR gate G18 power becomes H and transistor Q+e becomes QN, so capacitor C of the timer circuit
6 has been reset. While the film is air-feeding, the transistor Q+s is OFF and the variable resistor VR is turned off.
,,):/de:/+l-C.

A timer circuit based on K operates, and a variable resistor VR sets the clockwise rotation speed of the motor 600.

Since the variable resistance VR, is set in conjunction with , and the amount of blank feed is fixed at a predetermined amount by the film counter mechanism shown in FIG. Compared to that, the time it takes for the output of A2 to be reversed by vR3*C6 is set to be long, so the motor stop operation is not performed when the output of Vih2 is reversed to LK during normal air feeding operation. do not have. The predetermined time in this case is longer than the predetermined time described in operation (1)-1. This is because when the back cover is closed, switch SW 7 is turned off, so comparator A (+
) side reference voltage increases.

If the film gets caught and stops midway, or if the blank feed operation cannot be performed due to a mechanical failure, use VR,
The hoisting limit switch 5Wll is set to O within a predetermined time by C.
Since it does not become FF, the A2 output becomes L, the motor stops, and the inverter INV. The output of the OR gate G18 becomes H, and the light emitting diode LED lights up to display a warning. In the operation (1) described above, the flip-flop (G7.G11) (Gtt, ,G
Since the inversion of ta) is not performed, the exposure control described in the following (2) is not performed. The speed of the air feeding operation at this time is arbitrarily selected by the speed switching lever 401 as described above.

(2) Operation during photographing (2-1 Operation during normal continuous photographing In the following explanation, it is assumed that the a terminal side of the selector switch SW is selected.Sw.

The state in which the terminal selects the b terminal side will be explained later. In this mode, the sC selector switch sW8 is on the C side (OFF)
is selected. The multiplex photographing changeover switch SW2 is turned on because the normal photographing mode is selected, and the output of the AND gate Gl is held at LK. Also, since the mirror lowering position switch SW is in the ON state when the mirror is lowering before being released, the output of the AND gate G is also L, and the winding is restricted when the film is completely fed. Since the switch SWS is also OFF, the output of the OR gate G is L, and the NAND gate G.

The outputs of the inverter INV and INV are H. By operating the push button 100 in FIG. 1, the push button switch SW is turned to
When it is N, the output of inverter INV becomes H, NA
ND Gate G. Since the output of the AND gate G4 is H, the output of the inverter INV becomes H, and the output of the inverter INV changes from H to L.
Changes to -Predetermined reset time by force holding constant circuit CI+R5? If it has passed, the inverter IN
Is the output of V, H1 or mirror stop switch SW? As explained in FIG. 1, the rewind switch SW is OFF when the mirror before release is in the lowered position, and is linked to the rewind lever 155 in FIG.

is OFF, and the rewind button switch SW.

is ON, so the AND gate CIll + cs
+ output beam is NOROR gate G15H.

Since the inputs of AND gate G are all HK, its output is H.

Further, as described above, the output of the inverter INV is also high. Therefore, after the pushbutton switch S W a turns ON, the NAND
The output of the gate Gs is not L, so the flip-flop G is busy.

G is inverted, and the output of the NAND gate G1 is turned to H. The predetermined time based on Rt and Cz is the flip-flop G?
, Gs, and the output of the NAND gate G returns to H immediately after the inversion. When the output of NAND gate G1 becomes H, inverter INV is activated.

When fi becomes L and the output kL of AND gate G is held, the output of KNOR circuit COO becomes L. As a result, transistor QI6 is turned off, so VR, , C, , A
The timer circuit starts measuring time by tK. At the same time, the output of AND circuit G111 becomes H, and transistor Q.

is ON, transistor Qx is ON, Q4 is ON, and transistor Q is connected through diode Dst.

Since the transistor Q9 is turned on, the transistor Q9 is held off. Since the output of AND gate G is held at LK, the output of AND gate GI4 is L, and 9, A
Since the output of ND gate G16 is also L, the output of OR gate G15 is L, and transistors Qs and Qy
Q+ is OFF. When the transistors Qt and Q4 are turned on, the motor 600 is connected to the transistor Q2→motor 600→Q4.
The current flows in the direction of , and at this time it rotates to the left, so the speed generator 6
01 also rotates to the left, and in that case, the generated voltage is positive on the side connected to the anode of diode D, so KD3 →
Current flows in the direction R6→R7→D, and the resistance R? When the voltage generated across both ends of becomes the voltage E, comparator A,
By inverting and turning on the transistor Qs, speed feedback control is performed in the same manner as described above even in the left rotation state.

That is, the speed of the motor 600 is controlled so that a predetermined counterclockwise rotation speed is achieved with the partial pressure ratio of R, R, and the set speed in this case is set to ensure control accuracy when controlling the aperture value electrically. The speed is controlled at a constant speed to keep the shirt release timing constant.

As the motor 600 rotates to the left, the shutter is charged and the mirror is raised as described in FIG. 1, and the trailing curtain run completion switch SW is first activated.

turns OFF, then the mirror lowering position switch SW,
is turned off, so the outputs of the gates G2+G3 are still held at L. On the other hand, the memory fixing switch SW,
, is OFF, the OR gate Gl+ output becomes H because the G7 output is H, and in this state, the mirror goes up and the mirror stop switch SW, which will be described later, is turned ON, and the flip-flops G and G are reset. Even if the output of G changes to L, the mirror lowering position switch sW remains OFF.
is retained for. The H level signal of OR gate Gll is transmitted to the P1 terminal of exposure control section 604. While the P and terminals of the exposure control unit 604 are at H level, the exposure control unit 604 is
A known photometric value storage circuit operates, and specifically stores the photometric value of the photodiode PD, which is a light receiving element. That is, the photometric value is stored at the same time as the pushbutton switch SW6 is turned on, and it is stored on the mirror 13 in FIG.
2 is held until it is lowered into position.

When the mirror 132 in FIG. 1 rises to a predetermined position, the mirror stop switch SW7 is turned on, the output of the AND gate G5 becomes LK, the output of the NAND gate G6 is held at H, and the output of the flip-flop G7. Gs is reset and G
The output of 1 becomes LK. Pushbutton switch SWs is turned on and flip-flop G? , G s 07 output is H, AND gate G1. The output can respond to the output of the aperture control signal terminal P of the exposure control section 604. In modes where aperture control is electrically performed, such as shutter priority mode and program mode, when the aperture value reaches a predetermined value based on the photometry memory value of the exposure control unit 604, the P2 terminal changes from H to H, and the AND gate CI9 Since the output becomes HK, the transistor QI4 is turned on and the electric charge charged in the capacitor C7 is discharged through the aperture control magnet, so the aperture control mechanism described in the explanation of Fig. 1 is activated and the aperture control mechanism is activated. is controlled to a predetermined value. Feedback of the aperture value for controlling the aperture value to a predetermined value is performed by a variable resistor VR connected to the exposure control section 604. The voltage generated by the generator 601 due to left rotation of the motor 600 is determined by the exposure control unit 604.
are simultaneously applied to the aperture speed compensation input terminal P7. The reason for this is that the magnets 1-A4. Since there is a steady delay determined by the characteristics of the motor, the inertia of the locking mechanism, etc., the delay time and the motor 6
This is because if the relationship with the 000 rotational speed is not fixed and the compensation operation is not performed, the accuracy of the control value of the diaphragm will be impaired in the mode in which the diaphragm is controlled by electrical pressure. Especially motor 6
Since the drive mechanism including the rotor 600 has a finite speed rise characteristic until it is controlled at a constant speed due to the inertia of the drive mechanism including the rotor 600, the relationship between the above-mentioned delay time and the rotational speed of the motor 600 is fixed in that region. This causes control errors. Further, its start-up characteristics also vary depending on the voltage of the power supply EB.

Therefore, in order to eliminate this influence, a voltage related to the speed of the motor 600 from the generator 601 is transmitted to the exposure control section 604 to perform a compensation operation for the aperture control. The compensation operation will be described later in the explanation of FIG. When the exposure mode selection means in the exposure control unit 604 is in a mode that does not electrically control the aperture value, such as aperture priority mode or manual exposure setting mode, P2 is selected.
Since the output is held at L, the outputs of AND gates G and 9 never become H, and therefore the aperture value is not electrically controlled.

Here, it is switched by operating a memory fixing member not shown in FIG. 1, and is turned off during normal photographing.

Memory fixing switch SW.

When is turned on, the OR gate GII output is held at H, and the photometric value is continuously stored. That is, before the pushbutton switch SWa is turned on, point the camera at the object for which you want to store the photometric value and turn on the memory fixing switch SW1s.
By turning it ON, the photometric value is memorized continuously, and after that, turn the push button switch 5W11kO toward another subject.
By setting it to N, automatic exposure control is performed based on the stored photometric value rather than the photometric value of the subject. When the mirror rises to the predetermined position, the flip-flop G? , G of Gs
The output changes from H to L, and the mirror is in the raised position and I
l, 1 Mirror stop switch SW ? A while is ON
Since the output of ND gate G is held at L, the output of NAND gate G6 is held at H.

Therefore, flip-flop G? , G s is prohibited from reversing when the mirror is in the raised position. When the G7 output of the flip-flops G, G changes from H to L, the left rotation drive of the motor 600 is stopped, and the OR gate G,
Since the output of is L, the motor 600 will not be driven clockwise, and the shimotor 600 will stop abruptly by turning on the transistor Q11 for a predetermined period of time. Also flip flop G.

As the G output of G changes from H to LK, the output of the inverter INVs changes from L to H after a predetermined time by the time constant circuit R3+C1.

By changing the output of the inverter INV from L to H, the 9AND gate Gl! The output of the shutter becomes H for a predetermined time determined by R4°C1, turning on the transistor QCs and discharging the charge accumulated in the capacitor C3 via the front curtain control magnet.
15 to start exposure. Time constant circuit C3+
The predetermined delay time by R3 is generally set to the estimated time until the motor 600 completely stops, since the motor 600 does not stop immediately even if the brake is applied. This is to prevent the vibration of the motor 600 from affecting photography, and if the vibration can be ignored, this delay time may be zero. Diode DI connected in parallel to resistor R! , resistance R
The diode 014 connected in parallel to the capacitors C1 and C3 is irrelevant when charging the capacitors C1 and C3, while rapidly charging the capacitors C1 and C3, and generating a respective predetermined delay time when discharging the capacitors C1 and C3. Turn on transistor Q+s for a predetermined period of time. At the same time as the front curtain start operation by
The output of NVa changes from H to L and flip-flop G
The Gt+ output of t6+GH changes from L to H, and the GtO output changes from H to LK. At this time, the output of G22 does not change and is in the L state, so the transistor Q+s is turned off.

The front curtain start signal changed from L to H of the NAND gate G□ is transmitted to the input terminal P of the exposure control section 604, and a known shutter timer circuit in the exposure control section 604 is started.

When performing automatic exposure such as aperture priority mode, shutter priority mode, program mode, etc., the shutter timer circuit controls the shutter time calculated based on the above-mentioned photometric memory value, and it controls the shutter time that is transmitted from the P3 terminal trap. Timing is started using the start signal as a starting point, and when a predetermined time measurement based on the calculated value is completed, a signal that changes from H to L is outputted to the output terminal P as a trailing curtain start signal to the INAND gate G20. Specifically speaking, the signal change at the P terminal is such that before the front curtain start signal is transmitted to P, the P4 output is held at L, and when the front curtain start signal is transmitted, the P4 output is At the same time, it changes from L to H, and when the timing of the shutter timer circuit ends, the output changes from H to L to generate a rear curtain start signal, and after that, the L state generates a first curtain start signal again. is retained until In the manual exposure mode, the shutter timer circuit is operated at a shutter speed selected by a shutter speed setting member (not shown) in the exposure control section 604. Exposure control unit 6040 input terminal P.

The ON' and OFF signals of the pushbutton switch SWs are transmitted to K.

When the selected second time is bulb in the manual exposure setting mode, the P4 output becomes HK, and when the front curtain start signal is transmitted to the input terminal P, which is unrelated to the shutter timer circuit, the P4 output becomes HK.

At that time, if the large input pushbutton switch SWa is turned off, the output terminal P4 immediately outputs a rear curtain start signal that changes from H to LK because it is H. Also push button switch S
If W6 is ON, the input is P, and the input is L, so the P4 output is held at HK, and then any pushbutton switch SW is set to O.
At the time of FF, the 25-man power becomes H, and at that time, the KP4 output outputs a trailing curtain start signal that changes from H to L.

When a trailing curtain start signal is generated from the output terminal P, the output of the flip-flop G2°+GH is inverted, and the NAND gate Gto changes from L to H1, and the NAND gate G2+ changes from H to L.
, and the output G22 becomes l(, and the transistor QIS becomes O
Do N. When transistor Q□ turns on, capacitor C,
Since the charge accumulated in the shutter is discharged through the trailing curtain control magnet hs, the shutter trailing curtain 115' shown in FIG. 1 starts and the exposure ends. When the rear curtain is closed, the rear curtain travel completion switch SW4 is turned ON, and in this state, the mirror lowering position switch SW is still OFF, so the G,
AND gate G via OR gate G with specific output H
, set the output to H. Therefore, AND gate G14+c
Since transistor Q6 is turned on via ps, motor 600 rotates to the right. The output of OR gate G3 is H
During this period, the output of the inverter INV is L, so the flip-flops G) and Gg are not inverted by the 06 output and the left rotation signal of the motor 600 is not output. motor 6
At the start of the right turn at 00, as described in FIG. 1, in the first stroke of the right turn, the mirror is controlled to descend and the aperture control mechanism is reset. When the similar mirror is lowered to the specified position by turning the motor to the right, the mirror lowering position switch 5WIFi is turned on, so turn G.

The output becomes LK, but before that, the hoisting limit switch SW is turned on as described in Fig. 1, so the output becomes G.

The output is held at H, and the right rotation of motor 600 continues. When the mirror is completely lowered, film winding starts, but as described in Fig. 1, the multiple winding stop switch SWs is turned ON just before winding starts, but since it is not in multiple shooting mode, the multiple shooting changeover switch SWs is turned on. G1 output is L due to SW.
It is held as 0 and is unrelated to the operation. Since the G3 output is held Hi by turning on the winding limit switch SW, the motor 600 continues to rotate clockwise and winds the film. When a predetermined amount of film has been wound, the winding limit switch SW is turned OFF and turned to G.

The output becomes L, the right rotation of the motor is stopped, and the film winding process is completed. When the motor rotates to the right, variable resistor vR2 and switch SW are set as described above.

The right turn speed is selected accordingly. When the G3 output becomes L due to the completion of film winding, the output of the inverter INV becomes HK. Also, since the mirror is lowered, use the mirror stop switch SW.

is OFF, so it is G, and the specific output is H, so it is NAND gate G.
, can respond to changes in the output of AND gate G4. Since the SC changeover switch SWa is on the C side (OFF), when the output of the NAND gate G3o changes from L to H with the winding light T, the output of the AND gate G4 will change as long as the pushbutton switch SWa is turned on at that time. Changes from L to H. Similarly to the above, the G6 output for a predetermined period determined by the time constant circuit R2G2 is LK, and the flip-flop G? +
G & is reversed and outputs a motor left rotation signal, so while the pushbutton switch SWa is ON, the aforementioned motor left rotation (mirror rise, aperture narrowing) → motor stop → shutter control → motor right rotation (mirror return, Continuous shooting is performed by repeating the following cycle: (opening the aperture) → rotating the motor to the right (winding the film) → rotating the motor to the left (raising the mirror, stopping the aperture) →... When the pushbutton switch SWa is turned off, the output of the inverter ■Nv2 is L, so the 04 output is held at L, and the motor is stopped with the film winding completed and the next shooting sequence does not start. Continuous shooting is canceled.

Next, the operation when the selector switch SW9 is on the b terminal side, that is, the highest speed mode is selected, will be described.

Before the pushbutton switch SWa is turned on, the G2 (+) output is held and the Gts output is held at H, and the flip-flop G26 r G2. is forcibly reset.
The G26 output and the LXG2g output are also L. Therefore, transistor Q+y is OFF. When the pushbutton switch SW6 is turned on, the Gtll output is held at H and the forced reset operation is canceled. Also, like the above, flip-flop G? + G8 reverse operation is performed and motor 600
rotates to the left to raise the mirror and control the aperture, but at this time, the H level pulse output of AND gate G, 2 is not yet generated, so the output of NAND gate G□ remains in the H state and does not change. Therefore, flip-flop G26. G.

The state of ate outputs I, G, without changing.

Transistor Q+t is OFF. Therefore, the motor speed during left turning is controlled at a constant speed by speed feedback. When the raising of the mirror is completed, the shift flip-flop 07G is set by turning on the switch SWy, the motor is stopped, and the output of the KAND gate GH becomes H for a certain period of time after a predetermined period of time by R3G3. The front curtain of the shutter shutter is started by the H output of the AND gate Giffi, and exposure is started, and the output of the NAND gate C2S becomes L, and the flip-flop G26 + cz'r is set to G2.
6 output becomes H. The exposure mode output signal terminal P of the exposure control unit 604 outputs L when a mode in which the aperture is electrically controlled, such as shutter priority mode or program mode, is selected. In a mode such as an exposure setting mode in which the aperture is not electrically controlled, the output is H.

Therefore, in the shutter priority mode and program mode, the output of the AND gate atS is
It is held at L regardless of the output status of e, but in aperture priority mode and manual exposure setting mode, AND gate CZ
The output of S is determined depending on the output state of NAND gate Gta. Assuming that aperture priority mode or manual exposure setting mode is selected, flip-flop G!
6 + G! ? is set and the NAND gate G26 outputs H, the output of the AND gate G becomes H, and the transistor Q+y turns ON. Transistor Q+7 is O
By setting N, speed feedback control for clockwise and counterclockwise rotation of the motor 600 is no longer performed.

As described above, when the shutter rear curtain is controlled and exposure is completed, the motor 600 rotates to the right to perform operations such as lowering the mirror and winding up the film.

At this time, since the switch SW selects the highest speed on the b terminal side, speed feedback control is not performed and control is performed at the highest speed depending on the voltage of the power source EB. When the winding is completed, if the pushbutton switch SW6 is turned on at that time, the flip-flop G? , G8 are set again, the motor 600 is rotated to the left, and the next frame is photographed.

By turning on transistor Q+1, constant speed control is not performed and the vehicle turns left at maximum speed. Thereafter, while the pushbutton switch SW continues to be pressed and continuous photographing is performed, the ON state of the transistor Q+t is maintained and speed feedback is not performed, so that the motor 600 rotates at the highest speed. By turning off the push button switch SW6, this continuous shooting is stopped with the film winding completed, and the continuous shooting is stopped when the film winding is completed.
Since the output of AND gate G211 becomes L, flip-flop G 26 + 'C2? The beam is set NAN
The outputs of the D gates G 26 + G 28 and the L1 transistor Q+□ are both 0FFK. Switch SW6' again
When tON, speed feedback control is performed when the motor rotates to the left during the first one-frame photographing, but speed feedback is not performed when the motor rotates during subsequent continuous photographing, and a state in which the motor rotates at the maximum speed can be obtained. shutter priority mode,
In the program mode, the P6 output of the exposure control unit 604 is L, so G is held at L, so Qu is OF.
Therefore, when the motor turns left, constant speed control is performed by speed feedback every time, but when turning right, the speed is always the highest.

As mentioned above, only when the highest speed continuous shooting mode is selected in aperture priority mode or manual exposure mode, constant speed control is performed when the release is rotated to the left at the first release of continuous shooting, and during subsequent continuous shooting, rotation to the left is performed. The speed is highest when turning right. The advantage of doing so is that the release timing for the first frame of continuous shooting is determined by the camera user, so it is desirable to keep it constant regardless of the mode, and the timing of subsequent continuous shooting is determined by the camera device, so the motor There is no need to control left rotation at a constant speed, and high-speed continuous shooting can be achieved by shortening unnecessary time. In the shutter priority mode and the program mode, the diaphragm is electrically controlled when the motor rotates to the left, so the left rotation speed must be controlled to a predetermined left rotation speed in order to ensure accuracy of the diaphragm control. Therefore, when turning left, constant speed control with speed feedback is always performed.

Similarly, the NAND gate 02G that generates the reset signal for the flip-flop G we I c,t is connected to the flip-flop G? It is controlled by the G and output of las.

This means that pushbutton SW6 is turned OFF at any point during continuous shooting.
F is turned on and shooting is stopped, but if the timing is when the motor is rotating to the left, it will stop when the shooting of that frame is finished and the film winding is completed, so the speed return when the motor is turning to the left by turning on the transistor Qsy. The prohibited operation is continued during left rotation, and the flip-flop G is activated when left rotation is completed.
26 * G2? This is to generate a reset signal.

(2)-2 Normal single-frame shooting operation In this mode, the SC selector switch SWs is set to S@. Since the multiplex photography selector switch SW2 has selected the normal photography mode, it is turned on and the at output is held at L. In this mode, the re-release operation related to turning on the pushbutton switch SW in synchronization with the completion of film winding described in (2)-1 is not performed, and other operations are not performed as in (2)-1. It's the same. In other words, because the SC changeover switch Ws is on the S side (ON),
. Output is held high. Since the G4 output responds only to the pushbutton switch SWa, regardless of the output of G,
.

Output and INV, push button switch SW when output is H
When 6 is turned on, the G4 output changes from L to HE, and the G6 output generates an output for a predetermined period by R2 and C2, inverts the flip-flop 'Cy r Ge , and starts the above-mentioned release operation by turning the motor to the left. Ru. Even when exposure control and film winding are completed, the G4 output remains at H as long as the pushbutton switch SWa is kept ON, and only when the G4 output changes from L to H does R2r
The G6 output changes to L for a predetermined period due to C2, but is held at H after that, so the G6 output never becomes L. In order to release the camera again, it is sufficient to charge the ct by turning off the pushbutton switch SW6 once, and if the pushbutton switch 5Wae is turned on after recharging C2, the output of the AND gate G5 and inverter INV becomes H at that time.
If #i, that is, the motor is not in the right rotation state, is N.
Since the output of the AND gate G6 changes to L and the camera is released again, photographing is performed one frame at a time each time the push button switch S Wef is turned on. In this - frame photography mode, SC
Changeover switch SW8 is NAND gate atS for ON.
Since the output of is held at H, the flip-flop G
R6+ cat remains in the reset state and is not inverted, so the transistor Ql? is always K OFF. Therefore, even when the selector switch SW selects the highest speed mode on the b terminal side, constant speed control is performed by speed feedback for left rotation of the motor. The reason for this is not only because of its effect on modes in which the aperture is electrically controlled, but also in modes where the aperture is not electrically controlled, because the camera user determines the release timing for each frame shot each time. This is because it is desirable to keep it constant. Therefore, the rotational speed of the motor 600 is controlled according to independently set speeds when the motor turns left and right.

(2) Operation during -3 multiplex continuous shooting In this mode, the SC selector switch SW is set to the C side (OFF
) is selected, and since the multiplex shooting selector lever 171 in FIG. maintained in the state.

It is assumed that a@ is selected for the changeover switch SW. Since the multiplex shooting changeover switch 5W2 is OFF, the multiplex warning circuit 08CG02KH is transmitted and the PEL signal is transmitted to the light emitting diode LED.

A blinking signal tO8c602 is output to notify that the camera is in multiple shooting mode. It is preferable that the LED is disposed within the viewfinder as is known in the art. When film winding is completed before release, the mirror lowering position switch SW1 is ON, and the multiple winding stop switch SW is ON.

The trailing curtain run completion switch SW4 is ON, the winding limit switch SW is OFF, and the mirror stop switch SW is OFF. Therefore, each gate CI +02 + G3 output is provided. Inverter INV gate G,,G,. Since the output is H, by turning on the pushbutton switch SW, the G6 output becomes a predetermined time, and the flip-flops GV and GA
is reversed and outputs a motor left rotation signal. As the motor rotates to the left, mirror raising and aperture control is performed as described above, and when the mirror is raised to a predetermined position, the mirror stop switch SWy is turned to O.
It becomes N. As a result, the shift flip-flops Gq and Ga are reset, the motor is stopped, and exposure of the shutter is started. When the rear curtain of the shutter is closed, the rear curtain travel completion switch SW4 is turned ON, and υG2 and G, the output is set to H. So G
8 output is H. The motor 600 rotates to the right to lower the mirror and reset the aperture control mechanism. When the mirror is lowered to a predetermined position, the mirror lowering position switch SWI is turned on.
Do G! The output becomes L, but the multiple hoisting stop switch SW3
is O until a predetermined phase just before film winding starts.
Since FF is 1, the output is H and the right rotation of the motor is maintained. When the film reaches a predetermined phase just before film winding starts, the multiple winding stop switch SW is turned on.
Therefore, the GI ratio output becomes L. G, the clockwise rotation of the motor is stopped by the output, and the inverter INV, gate GA (
Since the output of l changes from L to H, (2) As in the case of -1, if the pushbutton switch SWa is turned on at that time, the G4 output changes from low to H, so the predetermined time according to R,, CtK G6 output becomes L and flip-flop G?
tG8 is reversed, a motor left rotation signal is output, and the release operation is performed again. Therefore, the pushbutton switch S
While W6 is turned on, film transfer is not performed and multiple shooting is performed repeatedly.
When the switch SW6 is turned off, the film stops in a phase state just before film winding, and when the push button switch SW6 is turned on again, multiple exposures are performed as many times as desired. At the beginning of the mirror raising process due to the left rotation of the motor after the release, the multiple winding stop switch SW turns OFF before the trailing curtain run completion switch SW turns OFF, so the G output becomes H once and the motor turns right. Generate a signal, but before that, flip-flop G? +
The inverter is turned on during the time when the G8 left turn signal is output.

Therefore, the motor right rotation signal from AND gate G8 is not transmitted to AND gate G and the subsequent motor control circuit, and the temporary H state of Gl output is maintained at L by mirror stop switch SW. , flip 70 knob G due to ON? Since KLK returns before +G8 is reset, the temporary G that occurs while the motor rotates to the left,
The generation of the dextrorotation signal has no effect on the multiplex imaging sequence. To return the multiplex photography mode to the normal photography mode, simply return the multiplex photography switching lever shown in Figure 1 to the normal photography position after completing the multiplex photography, and then return to the normal photography mode as described in the explanation of Figure 5. When the film winding limit switch SW is turned on, the G3 output goes high and generates a shimotor clockwise rotation signal, so the film is wound. When the film has been transported by a predetermined amount, the film winding limit switch SW is turned on. SWS is OF
F and the motor stops rotating to the right. In addition, Figure 1 and
In Figure 3, shooting is stopped once in multiple shooting mode, and the Qo
+ Ql! When switching the multiplex shooting switching lever to the normal shooting mode after the +R8+ cat has finished supplying power to the circuit for a predetermined period of time, the power supply to the circuit has stopped, so the motor does not rotate clockwise, and the push button 100 is pressed to rotate the motor halfway. Push switch SW1. When t-ON is turned on to start power supply f to the circuit, the above-described film transfer is performed. In such a state, when the multiplex shooting switching lever 171 is returned to normal shooting to continue shooting, even if the push button 100 is pressed, the camera does not release, but the shutter runs to start from the film winding sequence. If the estimated release timing is incorrect, or if the SC selector switch SW6 is on the S side (ON), a problem may occur in which the release does not occur.

To improve this point, press the half-press switch SW, and press the multiplex shooting switching lever 171f regardless of the operation of the button 100.
t Add a mechanism that turns ON temporarily during the process of returning to normal shooting mode, or add a separate switch that is connected in parallel with the half-press switch SW, and use this switch in the process of returning to normal shooting mode. This problem can be solved by adding a mechanism that temporarily turns it on temporarily. Automatic exposure control and manual exposure control, which are not described in detail, are performed in the same manner as described in (2)-1.

In the above operation, the constant speed control set by speed feedback is performed individually for each of the clockwise and counterclockwise rotations of the motor, similar to the operation when the SW of (2) -1 is on the a terminal side.

The operation when switch SW is on the b terminal side is (2)-1
Similarly to the operation when the switch SWo is on the b terminal side, in the aperture priority mode and manual exposure setting mode, the motor is rotated counterclockwise to keep the release timing constant during the first exposure when the switch sw is turned on. Constant speed control is performed, and the subsequent clockwise rotation is at the highest speed because there is no speed feedback, and the subsequent left and right rotations for continuous multiple exposure are all at the highest speed without speed feedback. controlled. In shutter priority mode and program mode, constant speed control is always performed when turning left.

Q) -4 Multiplex - Operation during frame photography This mode is obtained by setting the SC selector switch 5Wa1kS side (ON) in the state of (2) -3. In this mode, the NAND gate G,. Since the output of remains at H, the release operation is performed by turning on the pushbutton switch SWa when the output of the inverter INV and AND gate G is at H as in (2)-2. f r G& is reversed, the camera release by rotating the motor to the left is started, and the push button switch SW6 is set to O.
Even if the camera continues to be in the N position, the camera will automatically stop when exposure is completed, the mirror is lowered, and the film is just about to be transferred. To release the camera again, press the push button switch SW
If you turn it off and then on, multiplex photography will be performed. To return from multiple photography to normal photography, it is sufficient to return the multiple photography switching lever 171 in FIG. 1 to the normal photography position as described in (2)-3. In this multiple-frame shooting form (no-2
For the same reason, the left rotation of the motor is always controlled at a constant speed, and the right rotation is arbitrarily selected, regardless of the selection state of the switch SW and the selection state of exposure modes such as shutter priority mode and aperture priority mode. Control is performed by speed.

C) Operation at the end of the film The operation at the end of the film is performed during the film transport sequence in the normal photographing mode.

That is, because the film cannot be pulled out from the cartridge at the end of the film during film transport, the film cannot be transported by the predetermined amount, and the winding limit switch SW is turned OFF.
Since it remains FF, variable resistor VR3 and capacitor C6
After a predetermined elapsed time corresponding to the hoisting time selected by comparator A, the A2 output becomes L, and the output of AND gate G+3+014 is held at LK to stop the motor, and the inverter IN'VI.

Since the output of pOR gate G18 becomes H, the warning display light emitting diode LED2 lights up to display a warning that the motor has automatically stopped.

(4) Operation during film rewinding This operation is performed according to the following procedure as described in FIG. 1. υ rewinding is started by first pressing the rewinding button 7 and then moving the rewinding lever 155t to the rewinding position. By pressing the rewind button 7, the rewind button switch SW.
is not OFF, and the rewind lever is set to the rewind position.Furthermore, the film end switch swta is OFF if there is film, so the ate output becomes H. Gl? The output is inverter INV,! is for the L output, the rewind warning circuit 603 does not operate and the OR
Gate G1. I have output to . G24 output is SWl
.

is turned on, so it is KL. The G output is from the inverter rNV, , is the film end switch SW, and a is O.
Because it is F'F, it is KL, so it is L. C
When the I6 output becomes H, the G15 output also becomes H, and the motor starts rotating to the right to rewind the film. Also G1. Since the output is H, the NOROR gate G1 output is held at L,
Therefore, since the Gs ratio output is held at L, the flip-flops G, , G, are held in a reset state, and therefore no left motor rotation signal is output in this state.

Inverter INV, , is mirror lowering position switch SWf
is OFF, that is, if film rewind is accidentally set while the mirror is raised and exposure is being performed, the exposure will be completed and the mirror will be lowered as soon as the film is rewound. A signal is generated to provide a prohibition signal for starting film rewinding by rotating the motor clockwise. NORO
When the R gate G0 is returned, the L output is G and the output ILK is maintained, so Qlll is O at the same time as film rewinding starts.
N is maintained, and the operation of the timer circuit by VR, , C, , A is stopped even if the motor rotates. Also, while the rewind switch SW, is ON, D
Q++ is turned on via ll to maintain power supply to the circuit.

When the film rewind is completed, the film end switch 5
Since Wt6 is ON, the G and 6 outputs are LK, while CS+
Since , becomes an H output, the Cat output remains L, so G, is an L output, and the flip-flop G? , Gll is held in the reset state, so the motor is stopped and the atS output is H.
K fiLED! lights up to warn you that rewinding has finished. When the rewind lever is set to rewind without pressing the rewind button, the G16 output is L, or Gl?
Since the output becomes H, the rewind warning circuit 603 operates and causes the LED tt'' to blink to warn that rewinding is impossible.

When rewinding the film, it is not necessary to turn on the fully pressed switch sw6, so it is normally turned off.Therefore, flip-flop G26゜G2'F is in a reset state, and transistor Q+y is turned off. There is. Also, switch SW remains ON and flip 7.
Even if 0 knob G 26 + 02g is set, G3. Since the output is L, the ats output is also L and the transistor is turned off. I7 is OFF. Therefore, the motor speed during rewinding is the speed arbitrarily selected by the speed switching operation lever.

In the embodiment of the present invention shown in FIG. 12, speed feedback control is performed by speed detection using a DC speed generator for constant speed control of the motor, but the present invention is not limited to this. It is obvious that the speed feedback can be controlled by known detection means that detects the number of revolutions of the motor in a passive manner using a photoelectric element, a magnetic sensor, a mechanical contact, or the like. Further, in the embodiment of the present invention, constant speed control is shown as an example in which analog control is performed, but such a method uses a power transistor Ql for controlling the motor current in relation to the voltage of the power supply EB.
, Qt, G4, and Qt, which requires a large thermal load, which becomes a problem when making the camera smaller because high-power transistors must be used with good heat dissipation.

To solve this, KFiQt, G2, G4, Q
If t is turned ON and OFF in a pulse manner and the ON/OFF duty ratio is controlled in a pulse width modulation manner, thermal generation is minimized and a small transistor can be used, which is preferable.

FIG. 13 shows an embodiment of the exposure control section 604 shown in FIG. 12, particularly the aperture speed correction circuit. In FIG. 13, the same symbols are given to the parts shown in FIG. 12.

A logarithmic compression circuit 610 converts the photometric current from the photodiode PD into a logarithmically compressed voltage. Memory circuit 611
is a circuit that stores the photometric value produced by the logarithmic compression circuit 610 when the above-described output of the OR gate G11 is transmitted through the terminal P. The arithmetic circuit 612 uses the outputs of the memory circuit 611, film sensitivity setting circuit 613, lens preset ring aperture value and lens aperture value detection circuit, and shutter speed setting circuit 615 as arithmetic inputs, and selects the mode selected by the mode selector circuit 617. Calculate according to the mode,
The display circuit 616 outputs a display output of the exposure adjustment value, an output specifying the shutter speed controlled by the shutter timer circuit 618, and an output specifying the aperture value for the aperture control. The mode selector circuit 617 outputs an H level to the P6 terminal when the aforementioned aperture priority mode or manual exposure setting mode is selected, and outputs an L level output when the program mode or shutter priority mode is selected. 619 is an aperture speed correction circuit P, A 10 + RIG rR, which amplifies the voltage generated by the speed generator transmitted through the terminal.
The control aperture value voltage and A are transmitted from the in-phase amplification circuit 612 and the arithmetic circuit 612. A II + FLtt tR13r R14+ with output voltage as input
It is constructed in conjunction with a differential amplification circuit constructed by R111. The control aperture value voltage output from the arithmetic circuit 612 is in a relationship such that as the control target aperture value becomes the small diameter aperture value, the output voltage increases. R3 is the reference voltage, VR,
is a variable resistance associated with the movement of the aperture control lever mentioned above, and I8 is a constant current sink source. The variable resistor vRI has a relationship in which its resistance value decreases as the aperture value becomes smaller, so the variable resistor VR and constant current sink source are connected.

The voltage generated at the connection point also increases as the aperture value becomes smaller. A, 2 is a comparator, and when the output of the aperture speed correction circuit 619 and the voltage caused by the variable resistor VR are equal to each other or increase, the output becomes H. . As the speed of the motor increases, the output of the throttle speed correction circuit 619 becomes lower than the output of the arithmetic circuit 612. That is, the arithmetic circuit 61
20 Control target aperture value also becomes a voltage corrected according to the motor speed on the open diameter side. Since the variable resistor VR1 changes from the aperture open side to the small diameter constricted side, the aperture locking signal of the comparator AI2 changes from the arithmetic circuit 61 as the motor speed increases.
This means that vRl reaches the control target aperture value outputted in step 2 as quickly as possible. The reason is that as the motor speed increases, the iris locking signal is outputted earlier, thereby compensating for the locking delay of the iris locking mechanism described above, so that accurate iris control is performed.

[Effects of the Invention] As described above, the present invention provides a Prohibition 11: means for prohibiting rewinding of the film during exposure, so that if the rewind operation is performed by mistake during exposure, the image will be blurred and the photographing will fail. You can prevent erroneous operations such as

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of the drive mechanism of an embodiment of the camera of the present invention, FIG. 2 is a schematic perspective view of the sprocket mechanism shown in FIG. 1, and FIG. 3 is the same as that shown in FIG. FIG. 4 is a schematic perspective view showing the mirror mechanism in a raised state; FIG. 5 is a schematic perspective view of a modified example of the multiple exposure mechanism; FIG. 6 is a schematic perspective view of a modified example of the multiple exposure mechanism; A chart showing the relationship between the operation and the switches etc. that control it, Figure 7 is a schematic diagram of the camera of the above embodiment, Figure 8 is a plan view of a part of Figure 7, and Figure 9 is the above implementation. A schematic diagram showing an example of a battery pack used in the example; Figure 10 is a schematic diagram showing an example of a battery pack with higher power than the one in Figure 9; Figure 11 is a schematic diagram showing an example of the battery pack shown in Figures 9 and 10. FIG. 12 is a circuit diagram of the above embodiment, and FIG. 13 is a detailed circuit diagram of the exposure control section of FIG. 12. [Explanation of codes of main parts] 600...Motor 604...Exposure control section SW 4-...Rear curtain travel complete T switch 5
W14... Rewind switch INVII... Inverter

Claims (1)

[Scope of Claims] Rewinding operation means for generating a film rewinding start signal; rewinding means for rewinding the film; a motor for driving the rewinding means; and a rewinding start signal for the rewinding operation means. control means for controlling rewinding of the film by the motor and the rewinding means in response to a signal; a detection means for detecting that exposure is in progress and generating a signal; and a control means for detecting that exposure is in progress and generating a signal; and prohibiting means for prohibiting the rewinding means from rewinding the film.