JPH0814650B2 - Camera operation control device - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to an improvement of a camera operation control device for controlling camera operation such as autofocus.

(Background of the Invention) Conventionally, various autofocus devices for focusing a photographing lens are known, but most of them are members that are mechanically charged in association with the operation of a film winding mechanism. The control was performed by using a magnet or the like by utilizing the return to the original position. For this reason, there is a problem that the device becomes expensive because of the complicated structure and the use of the magnet and the like.

(Object of the Invention) An object of the present invention is to solve the above-mentioned problems and to provide an operation control device of a camera having an inexpensive and simple structure.

(Characteristics of the Invention) In order to achieve this object, the present invention provides a driving means,
A moving member that moves in the first direction and the second direction by the driving unit, an urging member, and an urging force of the urging member that is interlocked with movement of the moving member in the first direction. And a control member that controls the operation of the camera according to the amount of movement of the moving member in the first direction, and the moving member and the control with respect to the movement of the moving member in the second direction. First releasing means for disconnecting the interlocking with the member, and the control member in the initial position direction by the urging force of the urging member with the control member disconnected with the moving member. A prohibiting member that prohibits movement, and the prohibiting member is released in response to the moving member moving in the second direction, and the control member is moved to the initial position by the biasing force of the biasing member. And a second releasing means for returning.

(Examples of the Invention) Hereinafter, the present invention will be described in detail based on illustrated examples.

1 to 6 are mechanical configuration diagrams showing an embodiment of the present invention. In FIGS. 1 to 6, some of the positional relationships are shifted so that the structure is easy to understand. Motor 1
A pinion for transmitting the output generated in the motor 1 to the gear 2 via a reduction gear train (not shown) at the tip of the rotating shaft of the
1a is stuck. The gear 3 is rotatable about a shaft 4 while meshing with the gear 2 and a sun gear described later, and has an output transmission portion 3a for transmitting an output to the gear 5 on the lower surface. The gear 5 has an upper surface on which the output transmission portion 3a of the gear 3 is provided.
It has a convex portion 5a that abuts with a small gear portion 5b that meshes with a sun gear, which will be described later, on the lower surface, and as can be seen from FIG. 1, while the gear 3 makes one counterclockwise rotation, Since the output transmission portion 3a does not hit the convex portion 5a and the output of the gear 3 is not transmitted, the output transmission portion 3a does not rotate during this period.

The sun gear 6 meshing with the small gear portion 5b of the gear 5 has a planetary gear 8 supported by an arm 7 so as to be able to revolve around the sun gear 6, and an appropriate friction torque for preventing rotation of the planetary gear 8. The generated friction spring 9 and the spring bearing 10 constitute a planetary gear mechanism. When the sun gear 6 rotates counterclockwise, the planetary gear 8 revolves counterclockwise and meshes with the hoisting gear 11. (See FIG. 1). In this state, the output of the sun gear 6 is transmitted to a spool (not shown) via the planetary gear 8 and the hoisting gear 11 to start film winding. Conversely, when the sun gear 6 rotates clockwise, the planet gear 8 revolves clockwise and meshes with the rewinding gear 12 (see FIG. 5).
In this state, the output of the sun gear 6 is transmitted to a fork (not shown) through the planetary gear 8 and the rewinding gear 12 to start rewinding of the film.

The sun gear 13 meshing with the gear 3 constitutes a planetary gear mechanism in the same manner as described above by the planetary gear 15, the friction spring 16 and the spring bearing 17 supported by the arm 14 so as to be able to revolve around the sun gear 13. Cage, the sun gear 13
When is rotated clockwise, the planetary gear 15 revolves clockwise and meshes with a gear described later (state shown in FIG. 2). On the contrary, when the sun gear 13 rotates counterclockwise, the planetary gear 16 revolves counterclockwise and stops at the position where it abuts the stopper 18 (state of FIG. 1).

The gear 19 transmits the output of the planetary gear 15 to the set lever 20, is rotatable about a shaft 19a, and a cam pin 19b provided at the tip of the shaft 19a is fitted to a spiral member described later. ing. In the set lever 20, when the output from the gear 19 is transmitted to the rack portion 20a, the action of the long groove 20b and the structural member 21 fitted in the long groove 20b causes the arrow A to move.
It moves in the direction of the arrow and performs a distance adjustment operation and an exposure operation by a slide lever and a hook that will be described later.
Since it is urged in the direction of arrow B (see FIG. 1) by 22, it is stopped in the state of FIG. Further, the set lever 20 has a vertical bent portion 20c to which a hooking claw 23 is attached, a hole 20d for crimping a pulse contact piece 24 for generating a pulse signal for notifying a moving position of the set lever 20 and a pulse plate (not shown), and Adjustment pin 2
It is equipped with 0e. Further, a pin 26 for holding one end of a spring 27 having a role of causing a slide lever described later to follow the movement of the set lever 20 is planted on the set lever 20. The set lever 20 is moved from the state shown in FIG. 1 to the fifth state by rotating the gear 3 counterclockwise approximately 2/3.
Finish moving to the state shown in the figure.

The exchange claw 23 is attached to the vertical bending portion 20c of the set lever 20 by the shaft 2
It is rotatably supported by 8, and is constantly urged counterclockwise by a spring 29. In FIG. 1, since it is pressed by a release pin 31 provided on the slide lever 30, it is stopped at a position rotated clockwise, and a stopper (not shown) is released when the release pin 31 releases the pressure. It has stopped at the position of FIG. Further, the hooking claw 23 is pressed by the claw part 23a which meshes with the charge part of the distance ring described later in the state of FIG. 2, the spring hooking part 23b on which one end of the spring 29 is hooked, and the release pin 31 as described above. A trapezoidal release portion 23c is provided.

The slide lever 30 is urged by the spring 27 to follow the movement of the set lever 20 and the long groove 30a and the structural member 32.
Is moved in the direction of the arrow A by the action of, and a known governor mechanism including a gear 33, an escape wheel 34, and an ankle 35 that mesh with the rack portion 30b so as to move at a slower speed than the moving speed of the set lever 20. It is connected. Further, the slide lever 30 has a vertical bending portion 30c that comes into contact with the end face 20f of the set lever 20, a vertical bending portion 30d that holds the release pin 31 and the other end of the spring 27, and a claw portion of a locking claw described later. A tightening portion 30e that comes into contact with is provided.

The distance ring 36 is rotatably supported by a ground plate (not shown), and is normally biased counterclockwise by a spring 37 whose one end is hooked on a spring hooking portion 36a. It stopped in the state of contact with FIG. Further, when the gear 19 rotates and the set lever 20 moves in the direction of arrow A, the charging portion 36b is hooked by the claw portion 23a of the hooking portion 23 and resists the urging of the spring 37. , Rotate clockwise as shown in Fig. 3. At this time, a lens barrel (not shown) is guided and extended by the lead cam 36c, and the photographing lens is focused. The distance ring 36 is additionally provided with a claw portion 36e that meshes with a claw portion 38a of the locking claw 38.

The locking claw 38 is rotatably supported by a structural member (not shown) fitted in the hole 38b, and is constantly urged in a clockwise direction by a spring 39 whose one end is held by a spring hook 38c. Although received, in the state shown in FIG. 1, the pin portion 38d is in contact with the upright curved portion 30c of the slide lever 30 and remains at this position. 2 to 5, the slide lever 30 has an arrow A.
Since it has moved in the direction, the locking claw 38 is
It rotates clockwise according to the force of 39 to move the distance ring 36
It engages with one of the claw portions 36e to prevent the distance ring 36 from rotating in the counterclockwise direction.

The blade opening lever 40 is for opening and closing a shutter blade (not shown), is rotatably held around the hole 40a, and is constantly biased counterclockwise by the spring 41. In FIG. 1, the spring 41 urges it counterclockwise to a position where it abuts against a stopper (not shown), and in this state, the shutter blades are closed. Also, in the process of moving the set lever 20 in the direction of arrow A, the hook 23
The blade opening lever 40 is rotated in the clockwise direction by the hook portion 23a being hooked by the hook portion 23a (state of FIG. 3), but at this time, the shutter is opened by the action of the pin portion 40c. Locking claw 4
2 is rotatably held around the hole 42a, and the spring 43
However, in FIG. 1, it is stopped by hitting the stopper 44. The locking claw
At 42, the tension portion 30e of the slide lever 30 is locked, and the claw 42b for temporarily stopping the movement of the slide lever 30 and the locked state of the tension portion 30e and the claw portion 42b are set by the set lever 20.
A cam portion 42c for releasing the adjustment pin portion 20e is provided.

The spiral members 45, 46 are urged in a direction in which they stick to each other by a spring (not shown), and
Is stopped by a stopper (not shown), the other spiral member 46 collides with the spiral member 45, and
The positional relationship in the figure is maintained. As shown in FIG. 6, the spiral members 45 and 46 are provided with spiral grooves 45a and 46a (grooves 46a are not shown) for fitting and holding the cam pins 19b of the gear 19. When 19 rotates clockwise, the cam pins 19b are guided in the grooves 45a and 46a and gradually move upward, so that the gear 19 is not shown for holding the gear 19 in the state as shown in FIG. It moves upward against the urging force (downward) of the spring, and becomes disengaged from the rack portion 20a of the set lever 20 when it has rotated about two times (state of FIG. 5). There is. At this time, as shown in FIG. 5, the cam pin 19b projects on the upper surfaces of the spiral members 45 and 46, and thus cannot move upward. Further, concave portions 45b and 46b (see FIG. 1) are formed in a part of the abutting portions of the spiral members 45 and 46 so as to allow a slight clearance, and the claw portions 47 of the reset lever 47 are formed in the concave portions 45b and 46b.
As a is inserted, the spiral members 45 and 46 are
The cam pins 19b are disengaged from the insides of the spiral members 45, 46 by rotating about 5c, 46c in directions away from each other (see FIG. 6). As a result, the gear 19 and the rack portion 20a again engage with each other as shown in FIG.

The reset lever 47 is configured to be slidable in the vertical direction by the action of the shaft 48 and the long groove 47b in conjunction with the opening / closing operation of the back lid (not shown), and normally (when the back lid is closed). Since it is biased upward by the spring 49, it is located in the state shown in FIG. When the back lid is opened, it slides downward as shown in FIG. 6 against the urging force of the spring 49, and at this time, its claw portion 47a has its concave portions 45b and 46b.
It is inserted between b and b, and the state where the gear 19 and the rack portion 20a mesh with each other as described above is restored.

FIG. 7 is a block diagram for controlling the driving of the above-mentioned members. 50 is a sequence control circuit including a microcomputer or the like for controlling each circuit, 51 is a known photometric circuit, 52 is an A / D conversion circuit for converting the photometric information from the photometric circuit 51 into a digital signal, and 53 is the above A counter for holding the digital value from the A / D conversion circuit 52, 54 for the pulse generated by the pulse contact 24 and a pulse plate (not shown) by the movement of the set lever 20 during the exposure operation. A pulse detection circuit for detecting the number, 55 compares the digital value (EV value) from the counter 53 with the number of pulses from the pulse detection circuit 54, and detects a match, and sends a match signal to the sequence control circuit 50. E
A match detection circuit for outputting, 56 is a known distance measurement circuit, 57 is an A / D conversion circuit for converting the distance measurement information from the distance measurement circuit 56 into a digital signal, and 58 is a signal from the A / D conversion circuit 57. A counter for holding a digital value, 59 is the pulse detection for detecting the number of pulses generated by the pulse contact piece 24 and a pulse plate (not shown) by the movement of the set lever 20 while the distance adjusting operation is being performed. A pulse detection circuit having the same function as the circuit 54, a coincidence detection circuit 60 which compares the digital value from the counter 58 with the number of pulses from the pulse detection circuit 59 and outputs a coincidence signal F by detecting a coincidence. Is.

Reference numeral 61 is a motor control circuit for controlling forward and reverse rotations of the motor 1, and 62 is a winding and rewinding circuit for energizing the motor 1 in a film winding direction or a film rewinding direction in accordance with a signal from the motor control circuit 61. , 63 is a display circuit for displaying each information obtained by the photometry circuit 51 and the distance measurement circuit 56 in the viewfinder, and 64 is the set lever 20 stopped at the first or second position (details will be described later). A timer circuit for determining the time for prohibiting energization to the motor 1 after the slide lever 30 reaches that position until the distance adjustment operation or the exposure operation is completely completed, 65 is a film A timer circuit that detects the tension state, 66 is a film presence / absence detection circuit corresponding to a known film presence / absence switch that detects whether the film is at a position facing the aperture, 67 is a film feeding Film feed state detecting circuit corresponding to a known sprocket switch for detecting the state, 68 is a known flash circuit.

Next, the operation will be described with reference to FIG. 9 according to the flowchart of FIG. When the photographer presses the relays button (not shown) to the first step (first stroke), the sequence control circuit 50 issues a battery check instruction to a known battery check circuit to perform a battery check. As a result, if the battery voltage is sufficient to perform a series of photographing operations, the sequence control circuit 50 outputs a start signal to the photometric circuit 51, and the photometric circuit 51 starts subject brightness detection. After that, when a photometry end signal is generated in the photometry circuit 51, this time the sequence control circuit 50 causes the distance measurement circuit
An activation signal is output to 56, and the distance measuring circuit 56 starts detecting the distance to the subject. The photometry and distance measurement information obtained at this time is stored in the memory section in the sequence control circuit 50, and also sent to A / D conversion circuits 52 and 57, respectively converted into digital signals, and the counter 53 at the next stage, Sent to 58. Further, each information stored in the memory section of the sequence control circuit 50 is displayed in the finder through the display circuit 63. When the photometric information obtained by the photometric circuit 51 is lower than a predetermined EV value (the subject is dark), the sequence control circuit 50 outputs a strobe charge start signal to the strobe circuit 68.

After the information displayed in the viewfinder has been confirmed as described above, when the photographer further performs the pressing operation up to the second step (second stroke), the sequence control circuit 50 sends the motor control circuit 61 to the motor. The normal rotation instruction signal is output, and the motor 1 starts to rotate in the normal direction. When the motor 1 starts to rotate in this manner, its output is transmitted to the gear 3 via the gear 2, and the gear 3 starts rotating counterclockwise and the sun gear 13 starts rotating clockwise. Further, the planetary gear 15 is rotated by rotating the sun gear 13 in the clockwise direction.
By the action of 13 and the like, it revolves clockwise and meshes with the gear 19, the output of which is transmitted to the gear 19 and the gear 19 is rotated clockwise.

When the gear 19 rotates in the clockwise direction, its output is transmitted to the rack portion 20a, so that the set lever 20 starts to move in the direction of arrow A against the bias of the spring 22. As a result, the end face 20f of the set lever 20 and the upright bent portion 30c of the slide lever 30 are released from contact, so that the slide lever 30 also moves at a similar speed according to the biasing force of the spring 27 generated as the set lever 20 moves. It tries to start moving, but the slide lever
Since 30 is connected to the governor mechanism consisting of the gear 33, escape wheel 34 and pallet 35, it starts moving at a slower speed than the set lever 20 as shown in FIG.

When the phase between the set lever 20 and the slide lever 30 is slightly deviated from the positional relationship shown in FIG. 1, the contact between the release pin 31 and the release portion 23c of the hook 23 is released, and the hook 23 spring 29.
2 is rotated counterclockwise until it contacts a stopper (not shown) as shown in FIG. This allows the hook 23
The claw portion 23a and the charging portion 36b of the distance ring 36 are in an engageable state. With such a hook 23 attitude, the set lever
As 20 further moves, the claw portion 23a of the hooking claw 23 hooks the charging portion 36b of the distance ring 36, and the distance ring 36 is rotated clockwise as shown in FIG. I will let you.

Further, as described above, in the process in which the set lever 20 moves in the direction of arrow A, a pulse signal is generated by the pulse contact piece 24 attached to the lower part of the set lever 20 and the pulse plate (not shown) (see FIG. 9). This pulse signal is detected by the pulse detection circuit 59 and sequentially output to the coincidence detection circuit 60.
The coincidence detection circuit 60 compares the digital value from the counter 58. After that, when the coincidence detection circuit 60 detects a coincidence, the coincidence signal F is output to the sequence control circuit 50, whereby the motor 1 is reversely energized and the motor 1 is suddenly stopped. As described above, the set lever 20 has moved to the first position based on the distance measurement information obtained by the distance measurement circuit 56. For example, if the distance measurement information is 1.5 m, the motor 1 is reversely energized at the time when the pulse as shown in FIG. If is suddenly stopped, the set lever 20 will stop at a position corresponding to approximately 1.5 m. As shown in FIG. 9, the braking distance of the set lever 20 at this time is expected to be such that the set lever 20 moves to the position immediately before the next (sixth) pulse signal is generated. . Even if the set lever 20 stops in such a state, the spring 22 is caused by the friction of the gear train including the motor 1.
The set lever 20 does not move in the direction of arrow B by the urging force of.

After that, when the slide lever 30 moves with a delay and reaches the first position where the set lever 20 is stopped, the release portion 31c of the hook 23 is released by the release pin 31 attached to the upright bent portion 30d. Is pushed downward, and the engagement between the claw portion 23a and the claw portion 36b of the distance ring 36 is released. When the engagement between the hooking claw 23 and the distance ring 36 is released in this way, the distance ring 36 tries to rotate counterclockwise according to the urging force of the spring 37, but at this time, as the slide lever 30 moves. The action of the lever spring 39 causes the pin portion 38d to move into the slide lever 30.
The locking claw 38 that is rotating clockwise while being in contact with the upright curved portion 30c of FIG.
Has entered the fifth claw portion of the claw portion 36e of the distance ring 36, so that the distance ring 36 does not move counterclockwise while stopped in the state as shown in FIG. The amount of extension of the photographic lens (not shown) changes according to the amount of rotation of the distance ring 36, and the focusing of the photographic lens, that is, the distance adjusting operation is completed.

Sufficient time has passed to complete the operation described above,
That is, when the time required for the photographing lens to extend to the position corresponding to the distance measurement information at that time after the set lever 20 stops at the first position elapses and the timer circuit 64 times out, the sequence control circuit 50 The motor normal rotation instruction signal is output again to the motor control circuit 61, and the motor 1 starts normal rotation. When the motor 1 starts to rotate normally in this way, its output is the gear 2, the gear 3, and the sun gear as described above.
13, transmitted to the rack portion 20a of the set lever 20 via the planetary gear 15 and the gear 19, and the set lever 20 further starts moving in the arrow A direction from the first position. When the set lever 20 starts to move in the direction of arrow A in this way, the slide lever 30 also slowly starts to move in the same direction following this, and a phase difference occurs between the set lever 20 and the slide lever 30. As a result, the contact between the release pin 31 and the release portion 23c of the hook claw 23 is released, the hook claw 23 rotates counterclockwise, and the claw portion 23a of the hook claw 23 and the claw portion 40b of the blade opening lever 40.
And are in the engageable state.

When the set lever 20 moves to the position immediately before the ninth pulse signal is generated, the hook claw 23 and the blade opening lever 40 engage with each other as shown in FIG. When the set plate 20 further moves in the attitude of 23, the claw portion 23a of the hooking claw 23 hooks the claw portion 40b of the blade opening lever 40, and the blade opening lever 40 resists the urging force of the spring 41 to prevent the time. Rotate in the direction. The set lever 20 is moved to a position immediately before the ninth pulse signal is generated, that is, to a predetermined point.
Is moved, the slide lever 30 that follows the set lever 20 is temporarily stopped at the position shown in FIG. 3 because the rising portion 30e of the slide lever 30 engages with the claw portion 42b of the locking claw 42. When the set lever 20 advances a little from the position shown in FIG. 3, the adjustment pin portion 20e presses the cam portion 42c of the locking claw 42 to release the engaged state, and follows the movement of the set lever 20 again. Start moving. The locking claws 42 are arranged as described above, for example, when a subject located at 1.0 m, which is the close-up distance of the camera, is photographed, after the distance adjustment operation is completed as described above. The shutter operation starts immediately, but in order to eliminate the instability of the rising characteristics of the motor 1 at the time of starting the shutter operation in such a case, a phase difference is set between the set lever 20 and the slide lever 30. This is for the purpose of starting the shutter operation in the closed state.

Further, similarly to the above, in the process of the set lever 20 moving in the direction of arrow A, the contact piece 24 attached to the lower part of the set lever 20 and a pulse signal (not shown) are generated (see FIG. 9). The signal is detected by the pulse detection circuit 54 and sequentially output to the coincidence detection circuit 55, and is compared with the digital value from the counter 53 by the coincidence detection circuit 55.
After that, when the coincidence detection circuit 55 detects a coincidence, the coincidence signal E is output to the sequence control circuit 50, whereby the motor 1 is reversely energized and the motor 1 is suddenly stopped. As described above, the set lever 20 has moved to the second position based on the photometric information obtained by the distance measuring circuit 51. For example, if the above-mentioned photometric information (subject brightness) is EV12, reverse energization to the motor 1 is performed when the pulse as shown in FIG. 9, that is, the 13th pulse signal is generated. When the motor 1 is suddenly stopped, the set lever 20 stops at a position substantially corresponding to the EV 12, and the blade opening lever 40 rotated clockwise by the claw portion 23a of the catch claw 23 at this time is not shown. Stop with the shutter open to the aperture of F ₁ as shown in Fig. 9. This starts the exposure on the film surface.

By the way, if the photometry information obtained by the photometry circuit 51 is judged to be lower than a predetermined brightness by the sequence control circuit 50, the flash light is emitted from the sequence control circuit 50 shortly after the set lever 20 is stopped. A light emission signal is output to the strobe circuit 68, and strobe light is emitted (see FIG. 9). As shown in FIG. 9, flash light emission with good exposure accuracy can be expected by performing stroboscopic light emission when the aperture diameter is stable.

After that, when the slide lever 30 moves to the second position where the set lever 20 is stopped with a delay, as described above, the release pin 31 attached to the upright bent portion 30d causes the release portion of the hook 23 to be released. 23c is pushed downward, and the engagement between the claw portion 23a and the claw portion 40a of the blade opening lever 40 is released. As a result, the blade opening lever 40 rotates counterclockwise (see FIG. 4) according to the bias of the spring 40, the shutter is closed, and the exposure operation is completed.

The movement of the set lever 20 up to this point is performed until the gear 3 rotates approximately 2/3 counterclockwise, so that the gears of the film drive system do not move at all. In other words, the gear 5 has its output transmission portion when the gear 3 makes one rotation in the counterclockwise direction.
This is because the configuration is such that the 3a does not rotate until it comes into contact with the convex portion 5a.

In the subsequent series of operations, the sequence control circuit 50 performs the sequence control as shown in FIG. 8 according to a signal from the film presence / absence detection circuit 66, that is, a signal indicating whether or not a film is loaded. Therefore, first, a case in which no film is loaded (a case in which no film is loaded in the camera and a release operation is performed as a trial and the above-described operation ends) will be described. In this case, the sequence control circuit 50 outputs a signal to the motor control circuit 61 to rotate the motor 1 for a fixed time (the time required for the gear 3 to rotate approximately 2/3 rotation), and the motor 1 starts to rotate in the reverse direction. As a result, the gear 3 rotates clockwise, the sun gear 13 rotates counterclockwise, and the planetary gear 15 revolves counterclockwise and returns to the state of FIG. 1 again. Further, as described above, the planetary gear 14 revolves in the counterclockwise direction, so that the meshing with the gear 19 is disengaged, and the set lever is
20 and the slide lever 30 also return to the state of FIG. 1 again by the biasing of the springs 22 and 27. At this time, since the catch claw 23 is pressed by the release pin 31 and is kept in the posture of being rotated clockwise, the claw portion 23a of the catch claw 23 is moved to the blade opening lever 40.
It is possible to smoothly return to the state of FIG. 1 without hitting the claw portion 40b and the charging portion 36b of the distance ring 36. Furthermore, in the process of this return, the slide lever
The rising part 30c of 30 pushes the pin 38d of the locking claw 38 to
In order to release the engagement between the a and the claw portion 36e one after another, the distance ring 36 also rotates counterclockwise according to the bias of the spring 37 and returns to the state of FIG. 1 again.

Next, the case where the film is loaded will be described.
When the time required for the shutter opening / closing operation to end after the set lever 20 stops at the second position and the timer circuit 64 times out, the sequence control circuit 50 reverses the motor 1 to the motor control circuit 61. A signal is output to the motor control circuit 61 so that the motor 1 starts to rotate in the reverse direction. Then, similarly to the above, since the gear 3 rotates clockwise and the planetary gear 15 revolves counterclockwise, the engagement with the gear 19 is disengaged, and the set lever 20 and the slide lever 30 cause the springs 22 and 27 to move. It returns to the state of FIG. 1 according to the bias.

When the motor 1 continues to rotate in the reverse direction, the transmission portion 3a of the gear 3 comes into contact with the convex portion 5a of the gear 5, and the output of the motor 1 is transmitted to the gear 5 through the gear 3, so that the gear 5
Starts to rotate clockwise. When the gear 5 starts to rotate in the clockwise direction, the sun gear 6 rotates in the counterclockwise direction, and with this, the planetary gear revolves in the counterclockwise direction and meshes with the hoisting gear 11 to reach the hoisting spool. The output of the motor 1 is transmitted to start film winding. When the film winding is started, the film feeding state detection circuit 67 operates to detect the movement amount of the film from the number of perforations, and the timer circuit 65 for starting the counting at the same time as the film winding is started until the time is up. When the film feeding state detection circuit 67 detects that a predetermined amount of film has been fed, the sequence control circuit 50 outputs a signal to the motor control circuit 61 so that the motor 1 is positively energized for a fixed time. Stops. This means that the film winding for one frame is completed.

Further, although the filming of all frames is completed and the timer circuit 65 has timed out, the film feeding state detection circuit 67
When it is not detected that the specified amount of film has been fed, that is, when the film is in a tensioned state, the sequence control circuit 50 sends a signal to the motor control circuit 61 to rotate the motor 1 in the normal direction (the film rewinding direction). Is output. Then, the set lever 20 begins to move in the direction of arrow A against the bias of the spring 22, the distance adjusting operation and the exposure operation are performed as described above, and the shooting operation for one frame is performed, and then the gear is further operated. When 3 rotates counterclockwise, the transmission part 3a of the gear 3 comes into contact with the gear 5 from the opposite side of the convex part 5a, and the gear 5 rotates counterclockwise as shown in FIG. start. When the gear 5 starts rotating counterclockwise,
The sun gear 6 rotates clockwise, and with this, the planet gear 8 revolves clockwise and meshes with the rewinding gear 12, and the output of the motor 1 is transmitted to a fork (not shown) to rewind the film. Is started.

On the other hand, when the motor 1 rotates in the forward direction and the gear 3 rotates counterclockwise, the output is transmitted to the gear 19 via the sun gear 13 and the planetary gear 15, and the set lever 20 moves in the direction of arrow A as described above. When each operation is performed and the output of the motor 1 is further transmitted to the gear 19, the gear 19 continues to rotate further in the clockwise direction, and the cam pin 19b attached to the tip thereof.
Is fitted in the spiral grooves 45a, 45b of the spiral members 45, 46, the gear 19 gradually moves upward (see FIG. 5), and the rack portion 20a of the set lever 20 moves. When it is in a state of meshing with the terminal end, meshing with the rack portion 20a is released. When the gear 19 and the set lever 20 are disengaged from each other in this way, the set lever 20 returns to the state shown in FIG.

After that, when the film presence / absence detection circuit 66 detects that the film has been sufficiently wound into the cartridge, a signal is output from the sequence control circuit 50 to the motor control circuit 61 in order to reverse the rotation of the motor 1. The motor 1 reverses by a predetermined amount, and each gear series returns to the state shown in FIG. At this time, the spool also rotates, but since the film is no longer wound, the film is not pulled out from the cartridge.

After the film rewinding is completed as described above, when the photographer operates the back lid to open and close to take out the film, the reset lever 47 is lowered in conjunction with it, and the spiral members 45 and 46 as shown in FIG. Gear 19 to pry open
Moves downward again to the position shown in FIG. 1, that is, to the position where it meshes with the rack portion 20a of the set lever 20 according to a spring (not shown) that is biased downward. When the back lid is closed again, the reset lever 47 returns upward due to the biasing force of the spring 49, so that the spiral members 45 and 46 return to the state shown in FIG.

According to the embodiment shown in FIGS. 1 to 9, the shutter opening time is determined by setting the stop position of the set lever based on the pulse signal generated as the set lever moves and the photometric information obtained by the photometric circuit. Because,
It does not require an expensive control mechanism such as a magnet as in the past, and is inexpensive. Furthermore, since the shutter opening time can be determined by the stop position of the set lever, it is possible to control the exposure amount in multiple stages.

(Correspondence between Invention and Embodiment) In this embodiment, the motor 1 serves as the driving means of the present invention.
The set lever 20 serves as a moving member, the spring 37 serves as a biasing member, the distance ring 36 serves as a control member, the release pin 31 serves as a first releasing means, the locking claw 38 serves as a prohibiting member, and the slide lever 30 is bent. Department
30c corresponds to the second releasing means.

(Modification) In the present embodiment, the set lever 20, the slide lever 30, and the like that move linearly are used, but this may be a member that rotates around a single point, and the output of the gear 3 may be changed. gear
In FIG. 19, a planetary gear mechanism is used as a means for transmitting the output of the gear 4 to the hoisting gear 11 and the rewinding gear 12, respectively.
It may be a one-way mechanism using a well-known ball and a retracting spring or a claw. Further, a DC motor was used as a drive source, but an ultrasonic motor using a vibrator or the like, a drive means using an electrostrictive element, or a drive means using a shape memory alloy or the like may also be used.

(Effects of the Invention) As described above, according to the present invention, it is possible to provide an operation control device for a camera which is inexpensive and has a simple structure.

[Brief description of drawings]

FIG. 1 is a mechanical configuration diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing the positional relationship of each member during the distance adjusting operation,
FIG. 3 is a diagram showing the positional relationship of each member at the start of the exposure operation, FIG. 4 is a diagram showing the positional relationship of each member at the end of the exposure operation, and FIG. 5 is each member at the time of film rewinding. FIG. 6 is a diagram showing the positional relationship between the respective members when the back lid opening / closing operation is performed, FIG. 7 is the same block diagram, FIG. 8 is the same flowchart, and FIG.
The figure is also a diagram for explaining the distance adjustment operation and the exposure operation. 1 …… Motor, 3,5 …… Gear, 11 …… Hoisting gear, 12…
… Rewinding gear, 19 …… Gear, 20 …… Set lever, 22…
… Spring, 23 …… Hook claw, 24 …… Pulse contact piece, 36 …… Distance ring, 38 …… Locking claw, 40 …… Blade opening lever, 45,46
...... Lens member, 50 …… Sequence control circuit,
51 …… photometer circuit, 53 …… counter, 54 …… pulse detection circuit, 55 …… coincidence detection circuit, 56 …… distance measurement circuit, 58 …… counter, 59 …… pulse detection circuit, 60 …… coincidence detection circuit , 61
...... Motor control circuit, 62 …… Rolling and rewinding circuit, 64,65 ……
Timer circuit, 66 ... Film presence / absence detection circuit, 67 ... Film feeding state detection circuit.

Claims (1)

[Claims] 1. A driving means, a moving member that moves in the first direction and a second direction by the driving means, an urging member, and an interlocking movement of the moving member in the first direction. It moves against the biasing force of the biasing member,
A control member for controlling the operation of the camera in accordance with the amount of movement in the direction, and interlocking between the movement member and the control member with respect to the movement of the movement member in the second direction. A first releasing means; a prohibiting member for prohibiting the control member from moving in the initial position direction by the urging force of the urging member in a state where the control member is disconnected from the moving member; Secondly, in response to the moving member moving in the second direction, the prohibiting member is released, and the control member is returned to the initial position by the urging force of the urging member.
And a means for releasing the operation of the camera.