JPS5821242A - Motor driven camera - Google Patents

Abstract

PURPOSE:To make the transmission of release signals sure by providing only one transmission system for release signals and constituting the transmission system in such a way that said system is operated by either of a blind feed signal or a rewinding signal. CONSTITUTION:Means of counting the rate of winding of a film 55 and generating a blind feed signal unit said rate attains a prescribed value are constituted of a counter 36, a shaft 41, a cam 43, etc. Means of generating the rewinding signal of the film 55 are constituted of a button 211, a sprocket 84, a circular conical part 214, a selection lever 215, etc. Further the transmission means for transmitting a release signal from a motor 30 to a photographing mechanism are constituted of gears 113, 115, 17 and a cam 16. The transmission system is so arranged as to be connected or disconnected when the connecting and disconnecting means consisting of a lever 13, a shaft 15, etc. are operated by either of the blind feed signal or the rewinding signal.

Description

[Detailed Description of the Invention] *The invention relates to a motor drive camera; There are known devices that charge and release the shooting mechanism of the fist, the shutter, the shutter, and the mirror phonograph. IPm! In the L camera and the motor drive camera which has two motors, one for the film camera and the other for the camera W, after reloading the film with the aim of improving performance, the unused film is 7 perchas and 62 pairs. There is no release of the photographing mechanism until it is possible to take a picture 6; the so-called 52!
! It is known that it is possible to

Here is the motor drive camera 1; watch oaa*m
v*To give 4 ml.

for that purpose,! When the motor rotates for the road, the photographing mechanism is started and Il # - To prevent the work from struggling (2 to do 4;, motor or e), the picture of Minesou, who is standing in front of me, is transmitted to Leeds. The new + stage that will help the thread path of the 11th series is definitely worth praising.

In addition, the motor rotates for the soldiers in this transmission, and the release signal line is cut off to prevent re-jllIyt from being performed on the original film that is being displayed at 0 tatami. A connecting/disconnecting means is provided for this purpose.

Therefore, the release W issue is in the transmission system! Providing two connecting/disconnecting means for transmission and width means that *a becomes am42, which reduces the ailI property of the release signal transmission (d).

Therefore, the purpose of this system was to spread the world of film with one motor! ! Next and! Motor drive camera that charges and releases IBIl technique (2. Simple llI!t
in! The purpose is to provide a 2-feed function. For this reason, in this book, the release signal body 4 is only used as a joke.
This Denpenbi was also created by No. 9118 or IIR Calyx Example 52.

The structure and operation of one embodiment of the present invention will be explained below according to FIG. 1. First, the operation of opening the back cover in order to load a film will be explained.

When the key locking the back cover is removed by a known means (not shown), the back cover can be opened, and the part 1 of the cover moves forward to the left in FIG. Then, the biasing force of the barb 2 causes the back cover interlocking lever 3 to rotate to the left around the shaft 4. Therefore, the rewind release lever 5 fixed below the shaft 4 also rotates to the left.
Push one end 212a of a rewind holding lever 212, which will be described later. Therefore, this lever 212 rotates to the right, the mechanism is released from the rewinding state, and the relationship between the lever 212 and the rewinding button 211 becomes as shown.

When the shaft 4 rotates to the left, the mirror auxiliary cam 11 fixed above it also rotates to the left, and the mirror cam auxiliary lever 13, which is loosely fitted to the shaft 4 and biased in the clockwise direction by the spring 12, is also implanted in the lever 11. The pin 14 is rotated to the left against the action of the spring 12. When the lever 13 turns to the left, the camshaft 15 is pushed by the forked protrusion 13a, and the camshaft 15 and the mirror cam 1 fixed thereto are
6 slides to the left in FIG. By this movement of the camshaft 15, the cam 16 is retracted from a position where it can come into contact with an auxiliary lever 96 (described later) to a position where it cannot come into contact with it. This is because the protrusion 13m rotatably holds the end of the camshaft 15.

Further, the cam shaft 15 and the mirror cam gear 17 can be moved relative to each other in the axial direction, but not in the circumferential direction.

A pin 21 is implanted at the other end of the back cover interlocking lever 3, and as the lever 3 is rotated to the left, the winding limit lever p-
Press one arm 22a of +22. Therefore, the lever 22 rotates to the right against the force of the spring 23. A hoisting limit switch 24 is in contact with the back of the arm 22m, and is turned on by turning the lever 22 to the right. When this switch 24 is ON, the motor control circuit (not shown) causes the motor 30 to rotate in the direction of the arrow in FIG. 1 (clockwise rotation) when the release button switch 25 located above FIG. 1 is turned ON in the future. The circuit configuration is such that

Further, when the hoisting restriction lever 22 is rotated to the right, the end hook 22b of another arm moves to the left in FIG.
is no longer engaged with the notch 26a, and the restriction plate 26 becomes rotatable.

A pin 2T is implanted in the other arm 22e of the hoisting limit lever 22, and as the lever 22 rotates to the right, this bin 21 also moves to the left in FIG. As a result, the film feeding auxiliary lever 32, which is in contact with the pin 2T, is biased by the force of the spring 31 to rotate to the left.

As the back cover interlocking lever 3 rotates to the left, yet another lever moves. This is a counter locking pawl 33, and a bottle 34 implanted at one end of the pawl 33 is rotated to the left by the lever 3.
Since it is pushed to the left in the figure, the locking pawl 33 is rotated to the right around the shaft 35 against the biasing force of the spring 38.

Therefore, the locking portion 33m of the locking pawl 33 is retracted to the left from the position shown in FIG. Further, the idle feed cam 42 and the switching cam 43 fixed to the shaft 41 rotate to the left.

That is, in FIGS. 1 and 2, a number plate 4 is further provided at the top of the shaft 41 to which the number counter ratchet wheel 36 is fixed.
4 is fixed, and this number plate is rotated to the left by the biasing force of a spring 45. The counterclockwise rotation of the number plate 44 ends when the pin 46 implanted on its lower surface comes into contact with a stop plate 4T provided on a substrate (not shown). At this time, the letter "S" on the sheet count board 44 directly faces the index 51, indicating that the sheet count has been reset.

Returning to Figure 1, there is a spring 5 on the ratchet wheel 36.
3, the claw portion 52 of the other feed claw 5'2
b is engaged, but because its tip 52& is pushed forward left in FIG. The pawl portion 52b is rotated to the left, and the ratchet wheel 36
Retract from the engaged position.

Therefore, left turning of the ratchet wheel 36 is not obstructed.

This is what happens when you open the back cover.

Next, a description will be given of the so-called film feed operation from the time the film is loaded until the preparation for photographing the first frame is completed. When the tip of the film 55 is inserted into the groove 5tm of the spool 56 and the push button 61 is pressed, the push button switch 25 is turned on. At this time, the winding limit switch 24 has already been turned to
Since the current is N, the motor 3° begins to rotate clockwise by the action of the motor control circuit (not shown) as described above. This rotation is caused by a pinion 63 fixed to the motor shaft 62 and a first gear 64.
and the second pinion 65 and second gear 6 integrated therewith.
6, the third pinion 61 integrated therewith, and the third gear 71, and the third gear 11 rotates in the direction of the arrow in FIG. 1 (left rotation). The gear from the pinion 63 to the third gear 71 is a reduction gear train 70 for obtaining the torque necessary for film feeding from the small motor 3o. The third gear T1 is fixed to the shaft 72, and the film feed cam 73 fixed below the third gear T1 also rotates to the left.

As described above, the film advance assisting lever 32 is rotated to the left as the winding limit lever 22 is rotated to the left.
A film feed claw 76 rotatably provided on a shaft 75 implanted on the film feed cam 73 is rotated to the left by the biasing force of a spring T7, and its hook portion 76m touches the protrusion T3a of the film feed cam 73.
, the fourth gear 14 also rotates to the left. Accordingly, the known spool friction mechanism 82 and the spool 56 rotate (left-handedly) in the direction of the arrow in FIG. 1, and the film 55 is wound onto the spool 56. On the other hand, the rotation of the fourth gear 14 is transmitted to the fifth gear 81 and the sixth gear 83. The rotation of the gear 83 is caused by the engagement between the groove 83m and the upper pin 85 implanted in the upper part of the sprocket shaft 84, and the engagement between the lower pin 86 implanted in the lower part of the sprocket shaft 84 and the vertical groove 87&. is transmitted to the sprocket 81 via the flocceratoms 87, and each floccerato 87 also rotates to the left.

A sprocket upper gear 91 is fixed above the sprocket 87 and is constantly meshed with a number counter gear 92. The shaft 54 is implanted at an eccentric position on the gear 92.

Therefore, while the sprocket shaft 84, that is, the gear 92 is rotating, the feed pawl 52 reciprocates substantially in the left-right direction in FIG. At this point, the back cover is closed, and the part 1 rotates the back cover interlocking lever 3 to the right.
rotates to the left, and as shown in FIG. In order to move to the right in FIG. 1, the tip 52 of the feed claw 52
m is now movable to the right rear in FIG. 1, and the feeding pawl 52 is rotated to the right by the biasing force of the spring 53, and its pawl portion 52b is brought to a position where it can be engaged with the sheet counting ratchet wheel 36. For this reason, although it is well known and will not be described in detail, the ratchet wheel 36 rotates the gears 91 and 92 by the rotation of the sprocket 81 by one frame of the film 55, and the feed pawl 52 is reciprocated, and the ratchet wheel 36 is rotated by the pawl portion 52 b. Teeth rotate to the right one by one. Thus, as the film advances, the total number of sheets, 44, in Figure 2 changes from "S" to "
It rotates to 1.

During this time, the hoisting limiting plate 26 rotates multiple times (at this time, the hoisting limiting lever 22 is biased in the counterclockwise direction by the spring 23, so it rotates to the left around the shaft 93, and the hook 22b rotates around the outer circumference of the limiting plate 26. 26b, and the notch 2
There is a risk that it will get stuck there when facing directly at 6 m, interrupting subsequent film feeding. Nevertheless, in order to enable the blank feed up to the first frame, the blank feed cam 42, which operates integrally with the sheet number plate 44 shown in FIG. It contacts the arm 22 and prevents it from rotating to the left.

However, the number "l" on the number board 44 is index 5.
1, the lever 22 rotates to the left after the film is fed by a predetermined amount, the hook 22b falls into the notch 26m, and the film is no longer fed. Mechanically blocked. The total number of sheets is 24.
The hoisting limit is inactive while the number is displayed from "S" to "1". As the lever 22 rotates to the left, the film feed auxiliary lever 32 also rotates to the left via the pin 27 against the biasing force of the spring 31, and one end 76 of the film feed claw T6 is rotated to the left.
The film feed claw 16 contacts the pin 94 installed in b.
rotate to the right. Therefore, the claw IB 76 of this lever 76
m and the protrusion 73a of the film feed cam T3 are released and removed.

This breaks the winding part-force transmission system. By turning the winding limit lever 22 to the left, the winding limit switch 24, which had been pressed by one arm 22m of the lever, is turned OFF, and the motor 3o is de-energized by the motor control circuit, thus completing the film feed. do.

Here, a note will be made regarding the function of the mirror cam lever 13. When the back cover is closed, the mirror cam auxiliary lever 11, which is integrated with the back cover interlocking lever 3, rotates to the right to release the pin 14 from pressing the lever 13 in the left direction. However, the protrusion 4'3 of the switching cam 43, which operates integrally with the sheet count plate 44,
It is in contact with a and is prevented from turning to the right. However, since it is configured to be released immediately before the number "1" on the number plate 44 directly faces the index 51, the mirror cam lever 13
rotates to the right after the film has been fed a predetermined amount. By turning the lever 13 to the right, the camshaft 15 and the mirror cam 1 are rotated.
6 moves to the right in FIG.
is configured to move to a position where it abuts one end 96m of the mirror lock removal auxiliary lever 96.

Next, a note will be made regarding the shutter charge system that is linked to the engagement between the first worm 98 and the ninth gear 101.

During the above-mentioned idle feeding, the ninth gear 101 also rotates several times (clockwise rotation) in the direction of the arrow in FIG. 1.

Therefore, the shaft 102 and the crank arm 103, which are integral with this, also rotate to the right. Then pin 104 and rod 105
, the pin 106 performs a known crank motion to swing the shutter charge lever 110 in the vertical direction in FIG. As a result, if the shutter has not been charged when the photographed film is unloaded, the drive spring is charged at this point. Note that when charging has already been completed, the rod 105 is intended to swing the lever 110 with no load.When the levers 1 and 1o are in the lowered position in the IR The shutter 111 is configured to be allowed to operate when the shutter 111 is fully charged and in the raised position. This specific configuration is not shown because it is well known and extremely common regardless of whether it is a focal plane shutter or a lens shutter.

Next, the photographing and subsequent (winding) operations will be explained.

When the push button 61 is pushed down in FIG. 1, the push button switch 25 is turned on. As a result, the motor 30 starts rotating to the right by the action of a motor control circuit (not shown). Therefore, the pinion 63 and the worm 98 rotate to the right. Binion
463 has the first gear 64, and the worm 98 has the seventh gear.
Since the gear 113 and the ninth gear 101 are always in mesh with each other, they start rotating at the same time.

First, a film feeding system that is linked to the engagement between the binion 63 and the first gear 94 will be explained.

The rotation of the motor shaft 620 is converted into an appropriate rotation speed and torque by the reduction gear train 70, and the third gear 71 is rotated to the left. Along with this, the film feed cam 73 also rotates to the left, but since the claw portion 73m and the hook portion 76m of the film feed claw 76 are not engaged, the rotation is not transmitted to the gear train after the fourth gear 74. Therefore, unlike during film feeding, the film moves by 1 degree.Next, the mirror and diaphragm drive system which are linked to the meshing of the worm 101 and the seventh gear 113 will be explained. First, the mirror drive system will be explained. As the seventh gear 113 rotates counterclockwise, the shaft 114 to which it is fixed, the eighth gear 115, and the aperture cam 116 begin to rotate counterclockwise together.At this time, the eighth gear 115 and the mirror cam gear 1T are always in mesh with each other. The left rotation of the eighth gear 115 is transmitted to the shaft 15, and the mirror cam 16 fixed to this shaft 15 starts to rotate to the right.Then, the cam portion 16m is connected to the mirror auxiliary lever 96.
A lever 96 is placed around the shaft 111 in contact with one end 96m.
Rotate to the left. At this time, the other end 96b of the lever 96 acts in a direction to raise the bin 122 fixed to the mirror locking lever 121 in FIG. 1, and the lever 121 is rotated to the right about the shaft 123. Therefore, the hook portion 121a of the lever 121 and the hook portion 124 of the mirror lifting lever 124
The agreement with a is broken. The other end 1 of the mirror lift lever 124
A spring 1 is connected between the 1111125 fixed to the mirror charge lever 126 and the shaft 127 fixed to the mirror charge lever 126.
31 is disposed, and when the hook portion 124a is released, the lever 124 starts to rotate to the left. Mirror holding frame 1
32 is rotated to the left (mirror is raised) via the bin 125 by one arm 124c of the mirror raising lever 124, and is retreated from the photographing optical path. At this time, the mirror lowering spring 133fl suspended between the mirror holding frame 132 and the fixing member
The force of −f= is weaker than that of the rising spring 131 (as it is set, it does not prevent this mirror up.Mirror holding frame 13
One end 132a of the mirror 2 turns on the mirror stop switch 135 just before the mirror 2 completes its ascent. This signal causes the motor control circuit to stop the motor 3°.

The opening mirror raising lever 124 rotates to the left, but just before its operation is completed, its arm 124c comes into contact with the bin 136,
Rotate the narrowing auxiliary lever 137 to the right around the shaft 123. Therefore, the aperture holding lever 141 is rotated to the left around the shaft 144 by the bottle 143 against the spring 142, and the claw portion 141a of the aperture holding lever 141 is disengaged from the bottle 139 implanted in the aperture lever 138 (the aperture lock is released). ). Therefore, the narrowing lever 138 has the biasing force of the spring 147 and the biasing force of the narrowing interlocking lever 145 (described later).
It tries to start turning to the right.

However, the aperture cam 116 is connected to the mirror stop switch 1
35 is turned ON, the maximum lift portion of the cam portion 116a reaches the current position where it abuts the lower surface 138a of the narrowing bar 138, so the downward movement of the narrowing lever 138 is prevented and the aperture is maintained. . Mirror stop switch 1
35 turns on and until the rotation of the motor 30 stops, the aperture cam 116 and the mirror cam 16 rotate about half a turn (
It is configured to rotate to the right (right rotation).

In this embodiment, it is assumed that the diaphragm interlocking lever 145, which is interlocked with the diaphragm mechanism (not shown) of the lens 146, is receiving a downward biasing force in FIG. This lever 145 is prevented from descending by the tip 138b of the narrowing lever 138, and therefore the biasing force of the narrowing interlocking lever 145 is transmitted to the narrowing lever 13B. The aperture is open when the lever 138 is prevented from descending. The above is the operation by right rotation of the motor 30. .

Next, left rotation of the motor 30 will be explained.

When mirror up is completed, mirror stop switch 135
Due to the ON signal of the motor control circuit (not shown),
The motor 30 begins to rotate to the left. Therefore, motor shaft 6
The pinion 63 and worm 98 fixed to the gears 64, 101 and 113 rotate in the opposite direction to the previous
That is, gear 115 rotates.

First, a feed system that is linked to the meshing of the binion 63 and the first gear 64 will be explained. The rotation of the motor 30 causes the third gear 11 to rotate to the right by the reduction gear train 70 . 3rd gear 71
As the film feed cam 73 rotates to the right, the film feed cam 73 also rotates to the right.

A cam locking pawl 151 is biased in the counterclockwise direction by a spring 152 and abuts on the outer circumference of the film feed cam T3.
When the cam T3 rotates to the right by a predetermined rotation angle, further rotation is restricted. When the film feed cam 13 rotates clockwise, its protrusion 73a and the claw portion 76 of the film feed claw 16
Since the film is far away from 4th gear, the film transport system after the 4th gear does not operate and the film does not move.

Next, the aperture drive system will be explained. In FIG. 1, when the motor 30 turns left, the eighth gear 115 and the aperture cam 116
As one unit, they begin to rotate to the right. At this time, since the film feed cam 73 in the film feed system is restricted from rotating to the left by the cam locking pawl 151, the shaft 114 also rotates to the right only by a predetermined rotation angle.

The motor 30 is turned on by the ON signal of the mirror stop switch 135.
After the rotation of cam 1 stops, it starts reversing (left rotation), and the narrowing cam 1
16 begins to rotate to the right, its cam portion 116a attempts to retreat from the contact portion 138a of the narrowing lever 138. However, due to the biasing force of the spring 147 and the aperture interlocking lever 145, the aperture lever 138 begins to move downward following the cam 116, and the aperture of the lens 146 is narrowed down. When the aperture is narrowed down to the position where the aperture value of the lens 146 is set in advance before starting photography, the aperture interlocking lever 145 is locked by a locking member (not shown) provided inside the lens, and the aperture stops. . On the other hand, the aperture lever 138 follows the cam 116 and rotates to the right to an angle beyond the position where it is locked when the lever 145 is set to the minimum aperture. It comes into contact with and stops.

The motor control circuit is configured to stop the right rotation of the motor 30 when the throttle switch 147 is turned on. During this time, the cam 16.116 rotates approximately half a turn (left rotation).

In cameras that perform the process from closing down the lens aperture to metering and operating the shutter in an extremely short time, the aperture linking lever 145 and the aperture lever 138 are used when stopping down the aperture.
The influence of errors in aperture information on photometry accuracy due to bounce caused by the collision of the aperture cam 116 cannot be ignored.

In this embodiment, the aperture interlocking lever 145 is
Even after the aperture lever 138 comes into contact with the aperture preset member on the 46 side and stops at a position corresponding to the preset aperture opening, the aperture lever 138 moves beyond the position corresponding to the minimum aperture by a predetermined amount and then comes into contact with the aperture switch 141. . The time required for this predetermined displacement is set to the time required for the aperture interlocking lever 145 to stop bouncing when it is locked at the position corresponding to the minimum aperture opening. When the stop-down completion signal is generated from the stop-down completion signal from the stop-down lever 147, the aperture always has a predetermined aperture in a stable state.Therefore, even if photometry is started by the signal from the switch 147, the change in the aperture aperture due to the bounce of the stop-down interlocking lever 145 will occur. It is possible to reduce the impact of

Note that since the mirror gear 17 is always engaged with the eighth gear 115, as the eighth gear 115 reverses (turns right), this gear 17 turns left, and the mirror cam 16 turning left comes into contact with the mirror lock release auxiliary lever 96. The lever 96 is rotated to the left about the shaft 117F. However, since the mirror lock lever 121 and the mirror lift lever 124 have already been disengaged and the mirror is in the up state, the mirror operation can be done by simply turning the mirror lock lever 121 to the right around the shaft 123 via the bin 122. It has no effect.

In addition, the shutter charge system that meshes with the worm 98 and the ninth gear 101 rotates the crank 103 until it reaches the upper position due to the shaft 1020 rotations (left rotation). position, so it does not affect the subsequent shutter operation.

Although the motor 30 is stopped by the aperture switch 14F, it has a slip mechanism (not shown), and can slip when the film advance cam 73ρ (Mira i upward locking pawl 151 forcibly stops its inertial rotation). This is not shown because it is a well-known accessory mechanism for a camera driven by a camera motor.

As described above, the reflex mirror is retracted from the optical path (mirror up) by turning the motor 30 to the right, and then the exposure amount is determined by turning the motor 30 to the left to narrow down the aperture to the desired aperture. I was now in a position to activate the shutter.

An example of determining the exposure amount, that is, measuring the amount of light passing through the lens, will be explained with reference to FIG. The amount of light passing through the aperture 161 in the lens 146 is reflected by the shutter curtain surface 163 or the film curtain surface 164, and is measured by the light receiving element 162 disposed at the bottom of the camera body 16. At this point, the mirror 165 has been raised to the observation position indicated by the broken line in FIG. 3, so it does not interfere with photometry. This is the so-called TTL direct photometry method.

Returning to Figure 1 again, after the aperture is completed, metering starts, and when an appropriate amount of light is reached, taking into account the lens aperture value, film sensitivity, etc., the exposure control circuit moves the shutter (not shown) to the electromagnetic position to release the front curtain. Give the signal and start the first curtain.

After a predetermined time, a signal is sent from the exposure control circuit to the trailing curtain release electromagnetic device, the trailing curtain starts, and the prescribed exposure ends.

Near the end of trailing curtain travel, the mirror release lever 172 provided on the shutter 111 is activated (lowered), and its end 17
The mirror charge holding lever 111 in contact with the mirror charge holding lever 2a is rotated to the right around the shaft 176 against the biasing force of the spring 113. The arm 126a of the mirror charge lever 126 is locked by the claw portion 171a of the mirror charge holding lever 111, and is biased by the spring 131 in the left rotation direction around the shaft 174. Therefore, when the arm 126a and the claw portion 171a are disengaged by lowering the mirror release lever 172, the mirror charge lever %26 is rotated to the left about the shaft 1741 by the biasing force of the spring 131, and the end 126b of the other arm is rotated to the left. is the end 124b of the mirror lifting lever 124
K contacts, and the biasing force of the spring 131 becomes substantially an internal force.

Therefore, under the biasing force of the mirror lowering spring 133, the mirror holding frame 132 and the mirror lifting lever 124 turn to the right, and the mirror holding frame 132 comes into contact with the mirror receiver 175.
The mirror returns to the position that provides the viewfinder field of view (mirror down).

On the other hand, due to the right rotation of the mirror charge holding lever 171 around the shaft 116, the tip end 171b of the mirror charge holding lever 171 is
7T1 and the hoisting restriction auxiliary lever 181 are each rotated in the direction of the arrow in the figure (left rotation). As a result, the one end 181b of the hoisting restriction auxiliary lever 181 comes into contact with the pin 182 implanted in the hoisting limiting lever 22, and rotates the hoisting limiting lever 22 to the right against the spring 23.
The one arm 22b of the sprocket 8T is disengaged from the notch 26m of the hoisting restriction plate 26, and the sprocket 8T becomes rotatable. The hoisting restriction is lifted. Further, since the other arm 22e of the winding limit lever 22 also rotates to the right, the film feed auxiliary lever 32 in contact with the pin 21 also rotates to the right due to the biasing force of the spring 31. , the tip of lever 32゛ is 32m from K.
is retracted from the pin 114, the film feed claw 16 is rotated to the left by the biasing force of the spring T7, and the claw portion 76m engages with the protrusion 73m of the film feed cam 13. The film feed system is connected and fed. Further, a trailing curtain switch (not shown) provided on the shutter 111 is turned ON when the trailing curtain ends running, and a motor control circuit (not shown) causes a motor 30 to be turned on.
A rotation signal is issued, and upon completion of exposure, the motor 30 starts rotating to the right again.

The subsequent operations will be explained again by dividing them into the mirror, aperture drive system, shutter charge system, and film advance system. First, regarding the mirror and aperture 6 drive system, when the seventh gear 113 starts turning left due to the clockwise rotation of the motor, this rotation is transmitted to the eighth gear 115 and the aperture cam 116. As the cam 116 rotates to the left, its cam portion 116a moves to the narrowing lever 11'8.
The lever 138 is brought into contact with the lower surface 138 of the shaft 184.
Since it is rotated counterclockwise and raised, the aperture interlocking lever 145 also follows this and begins to rise. As the aperture lever 138 rotates upward, the pin 139 comes into contact with the lower part of the claw portion 141a of the aperture holding lever 141, and the spring 142
This lever 141 is rotated to the left against the urging force of.

When the pin 139 passes over the claw portion 141a, the aperture interlocking lever 145 that is engaged with the pin 139 also stops at this point, and the aperture returns to its open state.

On the other hand, the mirror gear 17 that meshes with the eighth gear 115 also rotates to the right, and the mirror gum O1l rotates to the right. A mirror charge low 5181 is provided on the shaft 186 implanted in the arm 126C of the mirror charge lever 126. As the cam portion 16m of the mirror cam 16 contacts this roller 181 and rotates, it rotates the mirror charge lever 126 to the right around the shaft 174 against the spring 131, thereby charging the mirror lifting spring 131. In the final stroke of the mirror charge holding lever 1, one arm 126a
71, and the claw portion 171a is locked to the arm 126a by the biasing force of the spring 173.

Note that (by turning the mirror cam 16 to the right, the key release auxiliary lever 96 is activated (turning to the left), the mirror key lever 121 is turned to the right, and the hook portion 1211L of the lever 121 engages with the one end 124a of the mirror lifting lever 124. However, before the mirror lifting spring 131 is charged, the mirror cam 16 comes into contact with the key release auxiliary lever 96 and the lever 9 is removed.
The shape of the mirror cam 16 is configured so that charging of the mirror lifting spring 131 starts when the lever 96 is rotated idly and the lever 96 returns to its original position after contact is completed. There is no risk that 132 will operate.

Next, the shutter charge system will be explained. As the worm 98 rotates clockwise, the ninth gear 101 starts to rotate clockwise, so the shutter charge lever 110 is activated by the crank mechanism.
rotates (clockwise) in the direction of the arrow in FIG. 1, and the shutter 111
After charging, it returns to the position shown in Figure 1 and completes its operation. The mirror release lever 172, which came into contact with the mirror charge holding lever "?-171 during the shutter charging process and prevented the lever 171 from rising, is also linked to the shutter charging and is shown in FIG. 1 before the mirror charging is completed. Climb back to position.

Next, explaining the film feeding system, the clockwise rotation of the motor 30 is transmitted from the pinion 63 to the reduction gear train 10, causing the film feeding cam 73 to rotate counterclockwise. Gear T4 also rotates to the left, and the spool 56 is rotated via the spool friction mechanism 82.
Rotate to the left. The left rotation of the fourth gear 74 is transmitted to the fifth gear 81 and the sixth gear 83, and the sprocket shaft 84 also rotates to the left through the engagement of the groove 83m and the upper sprocket pin 85.

Therefore, the film 55 is wound (.

During film winding, the mirror charge holding lever 171 returns to the position shown in FIG. 1 by retracting the mirror release lever 172, and as its end 171b rises, the lever 177 is turned to the right and the lever 181 is turned to the right. , the hoisting limiting lever 22 can be rotated to the left via the pin 182, and one end 22b of the lever 22 comes into contact with the outer peripheral portion 26b of the hoisting limiting plate 26.

As the film 55 is wound, the groove 26 of the winding restriction plate 26
When the end 22b of the winding limit lever 22 is in a position where they face each other, that is, when the film has been advanced by one frame, the two engage and the subsequent winding is stopped. Thus the film-
The winding of the pieces is completed.

At the same time as this engagement, the bottle 27 on the other arm 22e
rotates the film advance auxiliary lever 32 to the left, and
pushes the bin 94, so the film feed pawl 76 rotates to the right and is disengaged from the film feed cam 73. Furthermore lever 2
2 rotates to the left, the other arm 22m turns off the hoisting limit switch 24, and the motor 30 is stopped by the action of a motor control circuit (not shown). During this time, the sprocket upper gear 91 and the number counter gear 92 also rotate, and the feed pawl 52
With the displacement to the left, the pawl portion 52b advances the sheet counting ratchet wheel 36 by one piece. When the feed pawl 52'' returns to the right, the locking portion 33m of the sheet counter locking pawl 33 prevents the sheet count ratchet gear 36 from reversing, and the scale of the sheet count plate 44, which has advanced by one, directly faces the index 51. It turns out. The above is an explanation of the operations related to photographing and subsequent film feeding. During this period, the cams 16 and 116 rotate once.

Next, the operation during multiple exposure will be explained. 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 191 is turned to the right, the shaft 192 and the multiple cam 193
rotates to the right as one. Since the cam 193 is in contact with the arm 194b of the multiple intermediate lever 194, the cam portion 193
Due to the sound, the multiple intermediate lever 194 rotates to the left around the shaft 198 against the multiple barbs 195 . The other arm 194a of the multiple intermediate lever 194 is connected to the groove 196 of the multiple lever 196.
b, the multiple lever 196 rotates to the right around the shaft 199 in conjunction with the left rotation of the lever 194, and the arm 1
96b pushes the bottle 94 installed in the film feed claw T6 and rotates the feed claw 76 to the right. Therefore, the engagement between the film feed claw T6 and the film feed cam T3 is released. Therefore, the push button switch 25 is turned on and photographing is started.
Even if the motor 30 rotates to the right, the rotation is not transmitted to the winding system, and only the mirror up, lens aperture, exposure control, and shutter charging are performed.

When the motor 30 rotates to the right, the pin 201 provided in the third gear T1 moves the multi-switch interlocking lever 202 to one of the shafts 203.
Turn the lever 202 to the left until the multiplex stop switch 2
It is stopped by turning on 04.

In normal photography, when the rear curtain switch is turned on in conjunction with shutter operation, the motor 30 starts rotating to the right.
The circuit has a circuit configuration in which the winding limit switch 24 is turned on once and then stopped when the film feed is completed and turned off. However, during multiple shooting, the winding limit lever 22
is rotated to the right by the operation of the shutter 111), and the lock with the hoisting restriction plate 26 is once released, and even if the motor 30 continues to rotate by the trailing curtain switch, the hoisting restriction plate 26 remains stopped. . Therefore, as the shutter charges, the winding limit lever 22 engages with the winding limiting plate 26 again, so there is a risk that the winding limiting switch 24 will be turned OFF and the motor 30 will stop before the operation of the mirror aperture system is completed. . However, the motor control circuit (not shown)
By turning on the changeover switch 205 linked to the multiple exposure lever from the cam portion 193bK of the multiple cam 193,
The circuit configuration is such that the motor 30 is stopped when the connection to the hoisting limit switch 240 circuit is cut off and the multiple stop switch 204 is turned on. This completes the first exposure.

Next, for the second exposure, in the case of double exposure, if the camera switches to normal exposure, the film advances one frame after exposure and then stops, thus completing the double exposure. To photograph triple exposure or more, simply repeat the procedure for applying the first exposure.

In addition, to switch to normal shooting, use the multiple exposure lever 191.
All you have to do is restore it.

Next, the rewinding operation after one film has been photographed will be explained. When the rewind button 211 is pressed, the sprocket shaft 84 rises, and the one end t12 of the rewind holding lever 212
b is the stepped portion 2 of the button 211 due to the biasing force of the spring 213.
11& to keep the sprocket shaft 84 in the raised position. Therefore, the sprocket upper pin 85 is connected to the sixth gear 8.
3, the sprocket 87 and the sprocket shaft 84 can freely rotate independently of the 6-1''-1-83 and the gear train interlocked therewith.

On the other hand, a conical portion 214 is provided at the top of the sprocket shaft 84, and one arm 215a of the mirror shaft switching lever 215 is rotatably provided on the same shaft 93 as the winding limit lever 22 as the sprocket shaft 84 rises. is the conical part 2
It is rotated to the left by the slope of 14. At this time lever 215
Since the mirror cam lever 13 is rotated to the left by the other arm 215b, the mirror cam shaft 15 and the mirror cam 16 are
Even if it rotates, it moves to a position where it does not come into contact with the key release auxiliary lever 96.

Next, turn the rewind lever 216 approximately 9 (7') to the right.
The unwinding cam 221, which is integrated with the shaft 217, also rotates to the right by the same angle, and the unwinding shaft 224 rises. Therefore, the rewinding fork 226 fixed to the shaft 224 can be engaged with a spool of a cartridge (not shown). At the same time, the rewind switch 222 is turned on by the cam 221.

This signal causes the motor control circuit to rotate the motor 30 to the right.

On the other hand, since the third gear 71 and the rewinding gear 231 are always engaged, the shaft 232 and the tenth pulley 233 to which they are fixed rotate to the right. The first pulley 233 and the second pulley 22
A belt 234 is stretched between the belt 523 and the belt 234 with a tension given by a slack removing row 5231. Therefore, the second
The pulley 225 also rotates to the right, and the groove 225 provided on its upper part
Due to the engagement of the pin 227 with the rewinding shaft 224 to which the pin 227 is attached, it also rotates to the right. Therefore, a spool of a cartridge (not shown) rotates via the rewind fork 226, and the film is rewound. At this time, the sprocket 87 can be freely reversed, and the spool 56
Although the gear T4 is locked by a reverse rotation prevention pawl 235 that comes into contact with its teeth, the slip of the friction mechanism 82 allows reverse rotation.

When the film has finished rewinding, the rewind lever 216
When the rewind fork 226 is returned to the illustrated position (rotated to the left), the rewind fork 226 is lowered and the rewind switch 222 is also turned off.
, and the motor 30 stops. This completes rewinding, so all you have to do is open the back cover and take out the cartridge.

In this embodiment, the aperture holding lever 141 can be independently unlocked, so the preview button to aperture the aperture and view the depth of field prior to shooting can be pressed on this lever 141.
It can be configured to be linked to 1. The preview operation will be explained with reference to FIG.

Lever 2 is attached to one arm 141c of the aperture holding lever 141.
41 is rotatably pivotally mounted around a shaft 242. This lever 241 is connected to the arm 1 of the aperture holding lever 141.
41b, the spring 243 is biased in the direction of left rotation. The lever 241 is prevented from turning to the left by a pin 244 installed in the aperture holding lever 141. - # side preview button 245 is spring 24
6 to the right in FIG. .

With such a configuration, when the preview button 245 is pressed in the first stage, the protrusion 245a is pushed into the lever 24.
1, the locking lever 1.41 and the lever 241 rotate to the left around the shaft 247 as a unit. As a result, the locking of the bottle 139 by the hook portion 141a is released, and the lever 138 is rotated to the right by the spring 139, so that the lever 145 is lowered and the aperture is narrowed.

By pressing the preview button 245 in the second stage deeper than the first stage, its projection 245a presses the lever 241 and then climbs over it (on the other hand, the tip 245b of the button 245 hits one end 138a of the aperture lever 138). Since the lever 138 is rotated to the left, the lever 138 is rotated to the left.
8 is again locked and locked by the locking lever 141, and the aperture is opened and released. The pressed preview button 245 returns to its original position by the spring 246, but at this time the protrusion 2
45a overcomes the spring 243 while turning the lever 241 to the right.

As described above, the preview operation is performed.

In addition, when performing this preview operation, press the aperture switch 1 in Fig. 1.
In order to prevent the motor control circuit from malfunctioning even if the 4F is turned on, a switch 251 is provided that turns off when the preview button 245 is pressed, and the off signal prevents the on signal of the aperture switch from being transmitted to the motor control circuit. It is desirable to either disable the motor control circuit or to disable operation of the motor control circuit.

FIG. 5 shows an example in which the motor always rotates in the same direction as when winding the film, that is, mirror up and narrowing down are performed by rotating the motor in the same direction. In FIG. 5, the same functions as those in the embodiment of FIG. 1 are omitted.

FIG. 6 will be explained below. First, in the embodiment shown in FIG. 1, the mirror cam 116 is operated by right rotation of the motor 30, and the same operation is performed until the mirror holding frame 132 is raised and the aperture holding lever 141 is released. In the embodiment shown in FIG. 1, the mirror stop switch 135 is turned ON to once stop the motor 30, but in this embodiment, this switch 135 is omitted. Therefore, the motor 30 continues to rotate to the right, so the aperture interlocking lever 145 descends and the aperture is narrowed down. The motor 30 is then stopped when the bottle 139 installed in the aperture lever 138 turns on the aperture switch 147. The operation so far has been 16 mirror cams and 116 aperture cams.
,film? Each of the s9 cams 73+1 rotates once.

On the other hand, at this point in time, in the shutter charge system, the shutter charge lever 110 is in the upper position in FIG. 5, and the shutter 111 is fully charged and ready for operation.

A rotation limiting plate 211 is fixed to the shaft 102 and rotates integrally with the shaft 102. - A rotation limit lever 272 is disposed on the same shaft 93 as the 10,000-volume upper limit lever 22, and this lever 2
12 is biased in the counterclockwise direction by a spring 213, and its protrusion 212a is in contact with a side surface 271aK of the rotation limiting plate 271. First 18o of motor 30.

As a result of the rotation, the rotation limiting plate 211 rotates approximately half a rotation, and the protrusion 2
71b abuts against the protrusion 212a of the rotation limiting lever 272, so the rotation of the shaft 1020 is stopped. At this point, the throttle switch 141 is turned on and the motor 30 is stopped.

At this time, the shutter charge lever 110 is in the upper position in FIG. 5, and it goes without saying that shutter operation is permitted.

After the shutter is activated, press the mirror 1-release lever 1 shown in Figure 1.
72 activates the mirror charge lever 111 and the winding limit lever 22 rotates to the right via the levers 177 and 181. As shown in FIG. Therefore, the tip 272a is connected to the protrusion 271 of the rotation limiting plate 271.
b, and the shaft 102 becomes rotatable.

On the other hand, by turning the winding limiting lever 22 to the right, the end 22b of the winding limiting lever 22 is disengaged from the groove 26m of the winding limiting plate 26 shown in FIG. This is the same as in the first embodiment in that the film feed claw 76 is engaged and the film winding preparation is completed.

The motor 3 is activated by the rear curtain switch (not shown) of the shutter 111.
0 begins to rotate to the right again, and the film 55 is wound up. Below, the hoisting limit switch 24 in Fig. 1 is OFF'F.
The operation until the motor 30 stops is exactly the same as the embodiment shown in FIG.

On the other hand, the shutter charge lever 110 is actuated downward in FIG. 5 by the crank action, and the shutter shutter 111 is charged by this second stage rotation. It should be noted that in this embodiment, since the motor 30 does not rotate in reverse, the cam locking pawl 15.1 shown in FIG. 1 is not necessary. This completes the operation for normal shooting.

Next, the film rewinding operation will be explained. In FIG. 1, the rewind button 211 is pushed up to raise the sprocket shaft 84, and the sprocket upper pin 85 and the sixth gear 8
3. Remove the lock from groove 83m+. This allows the sprocket 87 to rotate freely, and the mirror shaft switching lever 25215 is actuated (rotated to the left) by the conical portion 214 provided at the top of the sprocket shaft 84, and the mirror cam shaft 15 is moved to the left via the lever 13. The operation of moving to is the same in FIG. 5 as well.

In this embodiment, as the sprocket shaft 84 rises as shown in FIG.
72 and rotates it to the right.

``Therefore, the arm 272a is retracted from the contact position with the rotation limiting plate 271, and the shaft 102 can freely rotate.''

Thereafter, the operation of rewinding the film using the rewind lever 216 in FIG. 1 is the same in this embodiment.

Next, the operation of film feeding will be explained. The film feed operation shown in FIG. 1 applies in exactly the same way to the embodiment shown in FIG. That is, when the camera back is opened, the winding limit lever 22 is rotated to the right by the camera back interlocking lever ~3, and the bottle 182 rotates the rotation limit lever 212 to the right, and its tip 272a is retracted from the rotation limit plate 211. ,
The shaft 102 will be able to rotate freely. When the film is completely fed and the winding limiting lever 22 rotates to the left, the rotation limiting lever 272 is rotated to the left by the spring 273 and comes into contact with the rotation limiting plate 271 again.

As described above, according to the embodiment shown in FIG. 5, since the motor 30 always rotates in the same direction (clockwise direction), each switch only needs to provide a signal to turn the motor 30 ON or OFF.
Therefore, the circuit configuration can be simplified. Furthermore, since the motor 30 is not reversed during operation, there is an effect that the operation time can be shortened.

As mentioned above, the needle-savvy person of the present invention j11m11
11] According to C, the winding needle of film 55 is set until it reaches a predetermined value. The means to produce 41i of the budding number (total number of autumn 66, @41° cam 4s, etc.) and the I of the film
IIIs9Ii No. 1,000 (button 211. Sufrocket 84°8 anchor 11214. Switching lever 215) are provided, and II et al.; motor sO to photographing mechanism (
Here, the transmission lines (gears 115, 115.17 and cam 16 tatami) that reach the rear ridge lIJ and Nirellis eccentricity V are in perfect alignment. And this history is 10,000 yen, either the title of the title or the title of the title;
5 etc.) is made 1; Therefore, the mechanism is simple 6; It can be increased.In addition, -Kageki Butsu is Prefecture 1 WA 6 = Showed II & 31
The first example (2g) was said to be a legend, but the essence of this is also a Shimatsuta charge mechanism or a mirror charge mechanism.

A brief explanation of taam 1i111 is a tpI view of the camera body including the 11K true example of the original, $I2 - a squint view around the Hiroaki kan board.

*FIR@tllJ, ll4t indicating the 1att field source means
The correct mm around the llJ Hiro 7 Review series, and the 5th century is a perspective view 1 showing a modified example around the motor.

[Mall of main AS sign] 54.41.4jS-・・・・・・・・・・・・・・・!
! Kapugo - Ramie 84.211.214,215...
···fist! i1. No. II Occurrence Manual 16.17.115.
115・・・・・・Rely X Suga transmission system 13.1
5・・・・・・・・・・・・・・・・・・・・・・・・
mll ramie 1:A-5 figure-256-

Claims (1)

[Scope of Claims] Motor; A method for controlling the number of stitches on a film mat using a wrinkle motor. Air transport value t' occurs until the amount of film 111mm reaches the value at which the image can be manipulated! A method for moving the film IIM by means of the motor;
4W issue - with the tatami exhibition manager's name Yasei Ramei; Shooting - to make the vM thinner (:, with the release signal @ Haruka that transmits the mechanical release signal generated from the II motor to the photographing mechanism; IIl era! Controlled by the sender number and the yenfeng exhibition number 0wX
A motor drive camera characterized in that when 10,000 of both polarization codes are lost, the threshold release g1 is transmitted by 62 digits.