JP3149235B2 - Camera film winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film winding device for a camera, and more particularly to a film winding device for winding a film with a simple structure.

[0002]

2. Description of the Related Art Conventionally, in a film winding device of a camera, a position where film feeding is to be stopped is detected by an appropriate detecting means, and a brake is braked based on the detected position. In some cases, the film is stopped and the film is fed by one frame.

There is also an apparatus in which the winding speed is appropriately controlled before the film stop position, and the film is stopped at the film stop position as accurately as possible.

[0004] However, these film winding devices have the problems that the structure thereof is complicated, that the winding of the film cannot be completed in a short time, that the stop position is not accurate and that the frame interval is not uniform.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a film winding apparatus which has a simple structure and can wind a film accurately in a short time.

[0006]

SUMMARY OF THE INVENTION The present invention is a feed motor and feeds the film; in conjunction with the feeding of the film by the feed motor, off
A single switch means for turning on and off each time the film moves by a predetermined amount ; and starting counting by an initial change of the switch means from on to off or from off to on,
A counter means this state change to count the number of said alteration every time changes to the off-on to or from from off; 該Ka
The count value of the counter means is the first value indicating the feeding end position.
Feed when a second lesser number of changes is reached
Speed for measuring the film feed speed near the end position
Measuring means; according to the measured feeding speed,
From when the first brake is applied to the feed motor
First setting means for setting a brake start waiting time of the vehicle;
According to the measured feeding speed, the first brake is applied.
Second setting means for setting a maximum braking time for continuing to drive;
The feeding mode starts after the brake start waiting time elapses.
Apply the first brake to the motor to start deceleration.
Before the large braking time elapses
When the value reaches the first number of changes, the second brake
Control means for stopping the feed motor by applying
It is characterized by.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on illustrated embodiments. FIG. 1 is a block diagram showing a control device of a single-lens reflex camera to which the present invention is applied. A central processing circuit 11 having a CPU includes an A / D converter 12, a pulse counter 13, an interval timer 14, and a ROM / RAM.
15, an analog signal line 16, a communication line 17
And the peripheral circuit 19 via the EE pulse signal 18. Further, the central processing circuit 11 includes a DC / DC converter 20, a regulator 21, an oscillator 22, an LCD,
Display 23, lens information input unit 24, patrone information input unit 25, switch information input unit 26, front curtain magnet 2
7, rear curtain magnet 28 and aperture control magnet (E
EMG) 29 and mainly executes the main processing of the camera.

The peripheral circuit 19 has an EEPROM 30, and includes a central processing circuit 11, a DC / DC converter 20,
The battery 35, the light receiving element 31, the EE pulse controlling photocoupler 32, the mirror motor driver 33, and the film motor driver 34 are connected. EEPROM3
0 becomes operable by power supply from the DC / DC converter 20, and processing such as data read / write is executed by a signal from the central processing circuit 11.

[0009] The regulator 21 receives a battery voltage and outputs a constant voltage to the central processing circuit 11. DC /
The DC converter 20 inputs a battery voltage, inputs a power hold signal from the central processing circuit 11, and supplies power to the peripheral circuit 19. The oscillator 22 supplies a high-speed clock and a low-speed clock to the central processing circuit 11.

The LCD display 23 displays the LCD display data from the central processing circuit 11. Lens information input unit 2
Reference numeral 4 outputs to the central processing circuit 11 information relating to the lens A / M, the open aperture, the minimum aperture, the focal length, and the like according to the type of lens. The patrone information input unit 25 outputs information on the presence or absence of the patrone, film sensitivity, and the like to the central processing circuit 11. The switch information input unit 26 includes a mirror up switch 95, a mirror down switch 96, a film switch 97, a release switch 98, a photometry switch 99, a rewind switch 150, and a back cover switch 1.
51, outputs the information of the UP / DOWN switch 152 and the mode setting switch 153 to the central processing circuit 11.

The front curtain magnet 27 is connected to the central processing circuit 11.
The control of the holding / running start of the front curtain is controlled by the signal from the controller.
The rear curtain magnet 28 controls holding and running start of the rear curtain according to a signal from the central processing circuit 11. The aperture control magnet 29 is input from the EE pulse control photocoupler 32 to the pulse counter 13 of the central processing circuit 11 via the peripheral circuit 19 when the movable mirror 110 (FIG. 2) is raised by energization of the mirror motor 36. The EE magnet is driven by a signal that is output when the number of pulses is counted and reaches a predetermined number of pulses to stop down.

The light receiving element 31 outputs an output corresponding to the subject light input to the camera to the central processing circuit 11 via the peripheral circuit 19. The EE pulse control photocoupler 32 is a movable mirror 1 driven by a mirror motor 36.
A signal is picked up from a mechanical component that operates in conjunction with the narrowing down of 10 when it rises, and an EE pulse is output to the central processing circuit 11 via the peripheral circuit 19.

The mirror motor driver 33 brakes, reverses, and rotates the mirror motor 36 according to a drive signal from the peripheral circuit 19 output by communication from the central processing circuit 11.
Control of normal rotation and free (non-energized) is performed. The mirror motor 36 is driven by a signal from the mirror motor driver 33 to perform UP / DOWN control of the movable mirror 110. The film motor driver 34 uses the drive signal from the peripheral circuit 19 that is output by communication from the central processing circuit 11 to brake, reverse,
Control of normal rotation and free (non-energized) is performed. The film motor 37 controls the winding and rewinding of the film according to a signal from the film motor driver 34.

Next, referring to FIGS.
0, a mirror drive mechanism 100 for switching between a pre-shooting observation position and a retreat position during exposure, a charging mechanism 200 for charging a shutter, and a diaphragm (not shown). The structure of each of the aperture driving mechanisms 400 to be switched by and the interlocking structure thereof will be described. FIG. 2 is a diagram showing a state where each of these mechanisms is at an initial position. The mirror motor 36 is a gear train 1
The mirror drive mechanism 100, the charge mechanism 200, and the aperture drive mechanism 400 are connected by a connection mechanism made of zero.

The movable mirror 110 is a movable mirror sheet 1
11 and the movable mirror sheet 111
Is rotatably attached via a pin 112 to a support frame (not shown) provided in the camera body. The movable mirror sheet 111 is constantly urged by the mirror restoring spring 113 toward the observation position before photographing (the position in FIG. 2). The mirror driving mechanism 100 has a mirror up member 101, and the mirror up member 101
The support frame 2 swingably supports the support frame. The central portion of the mirror-up member 101 is formed so as to protrude downward in the drawing, and this protruding portion is engaged with the mirror-up cam 103. The mirror up cam 103 is integrally connected to the one-rotation gear 43,
03 and the one-turn gear 43 are rotatably provided on a support shaft 104 provided on a support frame.

As shown in FIG. 2, the set lever 210 of the shutter is swingable between a charge completion position shown by a solid line and a shutter travel completion position shown by an imaginary line. The set lever 210 is rotated upward by the shutter charging member 201 of the charging mechanism 200 and is switched to the charging completed position. At the charging completion position, the front curtain and the rear curtain of a shutter (not shown) are charged. In this case, a locking member (not shown) locks these front curtain and rear curtain with the set lever 210,
The first curtain, the second curtain, and the set lever 210 are fixed at the charge completion position.

The aperture driving mechanism 400 includes an aperture control block 401 having a built-in circuit for setting an aperture, an aperture regulating lever 402, a slide plate 403, and an open aperture setting member 404. The slide plate 403 is
It has two guide holes 405 and 406,
05 and 406 are guide pins 407 fixed to the support frame,
The slide plate 403 is guided in the up and down direction in the figure by engaging with the 408 respectively. This slide plate 403 is used for restoring spring 4
09 is always urged upward.

A projection 411 formed on the upper end of the slide plate 403 is engaged with a lever 412 of the aperture control block 401, and the slide plate 403 is moved up and down by the lever 412.
The diaphragm is controlled by displacing 12. A projection 413 formed at the center of the slide plate 403 engages with the upper surface of the aperture regulating lever 402, and
02 is restricted from moving upward. Aperture regulating lever 402
Is constantly urged upward by a spring (not shown), that is, in a direction to reduce the aperture, and is located at the most lowered position in FIG. 2, that is, the open aperture position.

The open-aperture setting member 404 is swingably supported by a pin 414 provided on a support frame, and the distal end is connected to the slide plate 403 by a coupling spring 415. The central portion of the open-aperture setting member 404 is formed so as to protrude upward in FIG.
Is engaged. The aperture control cam 416 is integrally connected to the one-turn gear 42 together with the charge cam 203.

Each mechanism 100, 200, 400 is driven by a single drive source, ie, a mirror motor 36.
A gear train 10 for connecting these mechanisms and the mirror motor 36
Are a pinion gear 44 provided on the output shaft of the mirror motor 36, reduction gears 39 and 40, and an idle gear 41.
And one-turn gears 42 and 43. The pinion gear 44 meshes with the reduction gear 39, and the reduction gears 39 and 40 reduce the rotation of the pinion gear 44 and transmit the rotation to the idle gear 41, which meshes with the one-turn gear 42. The one-rotation gears 42 and 43 have the same number of teeth and mesh with each other, and can rotate by the same angle.

One rotation gear 43 has a state detecting brush 50
1 is provided. The state detection brush 501 is bifurcated, and is disposed to face the state detection code plate 83 in FIG. The state detection code plate 83 has a GND contact 86 occupying substantially the entirety thereof. Notches 87 and 88 are formed on the outer periphery of the GND contact 86, and contacts 84 and 85 are provided in the notches 87 and 88. The contacts 84 and 85 have a gap between them and the GND contact 86 and are insulated from each other. Condition detection brush 5
When the rotation of the fork 01 is performed, the leading end of the
3 contact 84 and GND contact 86, or GND contact 8
6 or only by contacting the contact 85 and the GND contact 86, two pulses can be emitted. That is, when the state detection brush 501 contacts only the GND contact 86, the switch is turned off. However, when the state detection brush 501 contacts the contact 84 and the GND contact 86 and the contact 85 and the GND contact 86, the state detection brush 501 is bifurcated. Shorted, ON
Becomes The area where the forked end contacts the contact point 84 corresponds to the mirror charge completion area, and is set as a mirror down switch 96 (see FIG. 1). Further, a region in contact with the contact 85 is made to correspond to an up detection position of the movable mirror 110, and is set as a mirror up switch 95.

Thus, the state of the movable mirror 110 can be accurately detected by the ON signal (pulse) that is reliably generated twice when the state detection brush 501 makes one rotation. Therefore, after the mirror motor 36 is energized, the mirror up switch 95 and the mirror down switch 96 are both in the OFF state until the next operation is completed, so that chattering does not occur during the operation due to dust at the contact portion or poor contact pressure. No malfunction occurs during operation. That is, since a switch that can reliably suppress chattering is realized by such a simple configuration, inconveniences such as high cost are caused as in the case where an expensive smooth substrate is conventionally used for the switch. Never.

Further, since it is only necessary to detect the ON state of the mirror up switch 95 and the mirror down switch 96 and immediately stop the mirror motor 36, there is no need to eliminate chattering by software, etc. It is possible to create a program that can save space and operate easily and reliably with a small amount of space. Also, the down (charge) position of the movable mirror 110 and the turning-on of the mirror down switch 96
Area (mirror charge completion area) is set to be equal, so even if the battery is removed halfway, the mirror down (96) is detected by detecting the OFF state of the mirror down switch 96 the next time the battery is inserted. (Charge) position. Further, if the mirror-up switch 95 and the mirror-down switch 96 are configured to softly cut the pull-up in the normal state where the mirror control is not performed, the current consumption can be suppressed even when the switches are turned on and stopped.

Next, the operation of the above device will be described. In the initial position, each mechanism is in the state shown in FIG. In this state, the release switch 98 is in the OFF state, the mirror motor 36 is stopped, and the state switch 105
Output the charge completion signal when the contact 84 is closed. At this time, the movable mirror 110 is at the down position, that is, the observation position before photographing, the aperture is at the open aperture setting position, and the shutter is at the charging completed position.

This initial position, that is, the state switch 10
When the shutter button (not shown) is fully depressed and the release switch 98 outputs an ON signal in a state where the charge output signal is output at 5, the mirror motor 36 rotates forward as shown by an arrow in FIG. The projection of the mirror up cam 103 pushes up the mirror up member 101 with the rotation of the gear 43. Therefore, the movable mirror 1
10 is displaced upward against the restoring spring 113 and moves to the retreat position during exposure.

Further, since the projection of the aperture control cam 416 opens the open aperture setting member 404, the aperture setting member 404 is rotated upward, thereby causing the slide plate 403 to move upward.
Is pulled by the restoring spring 409 and rises to a predetermined position determined by the aperture control block 401. As a result, the aperture restricting lever 402 is displaced from the position indicated by the imaginary line to the position indicated by the solid line and stops at the predetermined position, and the aperture is controlled to the set value. The mirror motor 36 is a movable mirror 1
10 moves to the up position, and stops when the contact 85 of the status switch 105 is closed and the mirror signal is output. The rotation of the single rotation gear 42 causes the charge cam 203 to rotate.
Is a shutter charging member 2 of the charging mechanism 200.
01, the shutter charging member 201 maintains the lower position. In this state, when the mirror-up signal is output, the front curtain and the rear curtain of the shutter travel by this signal to release the shutter, and at the same time, the set lever 210 moves from the charge completion position shown by the imaginary line in FIG. It descends to the traveling completion position shown by. When the travel of the shutter is completed, a rear curtain travel signal of the shutter is output, whereby the mirror motor 36 is rotated forward.

When the projection of the mirror up cam 103 is released from the mirror up member 101, the movable mirror sheet 111 is swung downward by the mirror restoring spring 113, and the movable mirror 110 is displaced to the observation position before photographing. Then, the mirror-up member 101 rotates downward. At this time, the projection of the charge cam 203 engages with the shutter charge member 201, and the set lever 210 is pushed up from the imaginary line position in FIG. 4 to the solid line position. That is, the shutter is charged. At this time, the projection of the aperture control cam 416 engages with the open aperture set member 404, and the open aperture set member 404 swings clockwise. As a result, the coupling spring 415 pulls down the slide plate 403 against the restoring spring 409, and lowers the throttle regulating lever 402 against a spring (not shown). As a result, the aperture is switched to the open aperture setting position.

The film feeding system and the film rewinding system will be described with reference to FIGS. A film motor 37 is provided on a holding panel 51 provided on the camera body. The holding panel 51 includes a gear 54 meshed with a pinion gear 53 attached to the rotating shaft of the film motor 37, a gear 55 meshed with the gear 54, a gear 56 meshed with the gear 55, and a gear meshed with the gear 56. A gear 58 meshed with the gear 57 and a gear 59 meshed with the gear 58
have. The holding panel 51 has a sun gear 60 and a planetary gear 61 that meshes with the sun gear 60, and applies a driving force to the film feeding system 50 and the film rewinding system 52 by rotating the film motor 37 forward and backward. It can be switched and transmitted. The film motor 37 and each gear constitute a film feed system 50.

The holding panel 51 has a gear 63, a gear 64 meshing with the gear 63, and a gear 6 meshing with the gear 64.
5, the gear 66 meshing with the gear 65, the gear 67 meshing with the gear 66, the gear 68 meshing with the gear 67, the gear 69 meshing with the gear 68, the gear 70 meshing with the gear 69, and the gear 70 are rotated. A rewind shaft 71 for driving a rewind fork (not shown) is provided. The motor 37 and each gear constitute a film rewinding system 52. F in the figure is a film.

The gear 61 is provided with a sprocket shaft 62, and the sprocket shaft 62 is provided with a sprocket 80 which engages with a perforation 81 of the film F to be wound. This sprocket shaft 62
An interlocking gear 79 is provided at the tip of the. A code plate block 89 is provided adjacent to the interlocking gear 79. The code plate block 89 includes a film code plate 94 (FIG. 6) that is supported by the rotation shaft 104 on the holding plate 51 side and a code plate cover 93 provided on the base 9 fixed on the camera body side. And film contact brushes 90 and 91 (FIG. 7).

As shown in FIG. 7, the film contact brushes 90 and 91 are provided on a rotating shaft 1 which is a support shaft of a film code plate 94.
They are arranged so as to be point-symmetrical with respect to a central portion 92 that is to be coaxial with 04, and each tip portion is formed in a forked shape. The film contact brush 91 and the film code plate 94 constitute a film switch 97 for detecting 8 pulses each time the film F is fed by one frame, and the film contact brush 90 is connected to GND.

The film code plate 94 is disposed so as to face the film contact brushes 90 and 91. As shown in FIG. 6, the film code plate 94 has a gear 83a on the outer peripheral edge. The gear ratio is set so that two rotations of the interlocking gear 79 make one rotation. The film code plate 94 has a contact 8A and contacts 8B provided at eight positions on the outer periphery thereof at equal intervals. When the film code board 94 rotates with respect to the film contact brushes 90 and 91, the film switch 97 is turned on in the section X and the film switch 97 is turned off in the section Y. Thereby, the film switch 97
Is ON / OF when the film F is wound up by one frame
F is repeated eight times, whereby eight pulses can be detected.

Next, a method of controlling the motor when charging the film and the mirror will be described. A in FIG.
FIG. 4 shows a waveform of the energization according to the conventional method of shifting the energization timing of each of the two motors. According to this,
The waveform of one motor to be energized first is indicated by a solid line a, and a large current (rush current) flows at the beginning of energization. The waveform of the other motor is indicated by a broken line b, and the energization timing is shifted from the energization of one motor by about 30 ms. That is, after the large current by one motor is stabilized to some extent, the other motor is energized. The vertical axis in the figure indicates the current, and the horizontal axis indicates time.

FIG. 10B shows a waveform c in a case where one motor is alternately energized / freed and alternately repeated for a predetermined time. Although this motor is intermittently energized, it can continue to rotate by inertia even while it is free, so that there is no hindrance to its function as a motor. A waveform d indicated by a broken line in the figure is a waveform when the power is supplied as usual without the power supply / free.

FIG. 10C shows two motors (mirror motor 36 and film motor 37) of this embodiment which are alternately driven as energized / free, that is, one is driven to be free and the other is driven at the same time. Waveform e when one is driven at the same time as the other is made free (de-energized).
Is shown. In this, since the motor can continue to rotate by inertia while being freed, both motors
Driving can be performed without any trouble while continuing energization / free operation. A waveform f indicated by a broken line in the drawing is a waveform in the case where the current is supplied as usual without being set to the supply / free.

Referring to FIGS. 11A and 11B, a routine showing a series of operations from the mounting of the battery to the turning on of the photometric switch 99 will be described. In step S179, the stack pointer is initialized, and a reset process is executed in S180. This reset processing is performed in the ROM / RAM 15
Clear all the memories in the RAM, set the input / output of each input / output port, and execute the setting of the special register. S1
At step 81, the subroutine "MIRRCHK" is called to check the position of the movable mirror 110. If the movable mirror 110 is not at the normal position or the film F
When the end of is stored, the winding processing, that is, the processing from FIGS. 15A and 15B is performed.

In the routine starting with the label "SW1CHK", in step S182, VDD ON indicating that VDD has been turned on.
The flag is cleared, the stack pointer is initialized in S183, the UP / DOWN processing is performed in S184, and the LCD display processing for displaying each information on the LCD display 23 is performed in S185. In S186, it is determined whether or not the rewind switch 150 has been turned on.
If so, the process proceeds to S187, and if not, S1.
Go to 88. In S188, the camera back cover (not shown)
It is determined whether or not the back cover switch 151 has been turned ON, and if the back cover switch 151 has been turned ON, the process proceeds to S187.
Otherwise, to S189. In S189, it is determined whether or not the photometric switch 99 is turned on.
If it is ON, the process proceeds to S187; otherwise, S19.
Go to 0.

In S190, the release switch 98 is turned on.
It is determined whether or not the operation has been performed. If it has been turned on, the process proceeds to S187; otherwise, the process proceeds to S191. In S191,
The power hold is turned off, the timer interrupt is enabled in S192, the high-speed clock is stopped and the power is turned down in S193, and the process proceeds to S194 after the time set in the timer.
In step S194, the high-speed clock is re-oscillated to execute the timer interrupt process. In step S195, the timer interrupt is prohibited and "SW1CHK" is repeated. Here, "SW1CH
K ”, S182 to S186, S188 to S1
The process 95 is a loop for suppressing current consumption when the camera is left unattended. In S187, the VDD ON flag is set, and in S196, the DC / DC converter 2
The power hold signal is output to 0, VDD is turned on, and S19
7, the wait time for the reset time of the peripheral circuit and B
The wait for the V stabilization time is executed, and “BAT” is
A battery check process is executed by calling a "CHK" subroutine.

In step S199, input processing of EEPROM data for AE calculation and sequence control is executed.
Then, mount pin information, lens ROM information, and the like are input from the lens information input unit 24. In step S201, patrone information regarding the presence / absence of a patrone, film sensitivity, and the like are input. In step S202, a subroutine starting with a label "FOECHK" is called to execute an end check process of the film F, and a "RESTART" label is used. Proceed to the starting routine.

The main routine of the camera will be described with reference to FIGS. 12A to 12C. In S1, data is set so that the power hold timer becomes 10 seconds. In S2, an interval timer of about 128 ms is initialized and the routine proceeds to a routine starting with a label "VDD LP". S
In 3, the UP / DOWN process of the information related to the LCD display is executed, and in S4, the lens check process is executed.
In S5, a back cover change check process is executed based on the back cover switch 151. If there is a change, the process proceeds to S6, and if not, the process proceeds to S7.

At S7, the rewind switch 150 is turned on.
Executes the / OFF check process and sets the rewind switch 150
Proceeds to the routine starting with the label of "REWIND", otherwise proceeds to S9. S9
Then, the output of the light receiving element 31 connected to the peripheral circuit 19 is set to be output as the analog signal 16 through the communication line 17, and A / D conversion processing of BV (subject luminance) is performed. In S10, the input conversion process of the patrone information, that is, the input setting of the presence or absence of the film and the input conversion of the film sensitivity information are performed. In S11, an AE calculation process, that is, a process of obtaining a TV (shutter speed) and an AV (exposure value) based on the input data is executed. In S12, after the release, the brake in the case where the brake is continued is terminated, and the mirror motor 36 and the film motor 37 are set free. In S13, an LCD display process for displaying each information on the LCD display 23 is executed.

In S14, it is determined whether or not the release process can be performed when the release switch 98 is ON. If OK, the release starting from the label of "RELEASE PROCESS" from S25 is performed. Proceed to the process, otherwise proceed to S16. In S16, it is checked whether or not the interval time (about 128 ms) has elapsed. If the interval time is being counted, the process returns to S14, and the process exits to S17 every time the interval time elapses. In S17, a count process for counting the power hold timer is executed. In S18, it is determined whether or not the counting process has been completed. If the counting process has not been completed, “VDD LP” is repeated. If the counting process has been completed, the process proceeds to a power down routine starting with a label “SW1CHK”.

In S6, the number of films (the number of frames) displayed on the LCD 23 or the like is cleared, and the flow advances to S19.
In S19, it is determined based on the back cover switch 151 whether or not the back cover is opened. When the back cover is closed, the process jumps to “SW1CHK”, and when the back cover is open, the process proceeds to S20. In S20, the winding of the film F is started, the winding code for the initial alternate energization is stored, and in S21, the mirror check flag is cleared so as not to execute the control on the mirror motor 36, and in S2,
In step 2, the number of loading edges is set to 58 (60-2) to feed the film to the position of the first frame.
At 23, a maximum winding time for when the film feeding is not completed within a predetermined time due to a failure or the like is set, and at S2
In step 4, a subroutine (S73 to S78) starting with a label "LOADING" is called to execute a loading process, and after completion, jump to a process starting with a label "SW1CHK".

At S25, the final BVA / D before release
A conversion process is executed, and a subroutine starting with a label of “MIRRUP” is called in S26 to
Up of the mirror. In step S27, a subroutine starting with a label "EXPOSURE" is called to execute an exposure control process. In S28,
Subroutine starting with the label “WDSHORI” (S
68 to S72), the moving mirror 110 is lowered, the mirror box system is charged, and the film F is wound up. In S29, a battery check process for checking the charged amount of the battery 35 is executed,
Proceed to the routine starting with the label "RESTART".

Referring to FIGS. 13A and 13B, “MIRRU
A subroutine starting with the label "P" will be described. S30
Then, turn on the first curtain magnet 27 and the second curtain magnet 28
Then, the front curtain and the rear curtain are held so that the curtain does not run immediately when the mechanical lock is released by the energization of the mirror motor 36 later. In S31, the energization of the mirror motor 36 is started, and in S32, the final AE calculation is performed on the final BVAD converted value before release, and the process proceeds to S33. S3
At 3, it is determined whether or not the EE pulse control data obtained by the final AE operation has become "0". If it is not "0", the process jumps to S35. The magnet 29 is turned on and the aperture is fixed at the open position.

In step S35, the count data of the EE pulse is set to start counting. In step S36, a final brake request flag for requesting short brake after reverse rotation brake at mirror up is set.
Then, the interval timer is set to 1 ms for time management in the mirror up control loop. In step S38, a mirror check flag for checking the position of the movable mirror 110 is set. In step S39, the time-over is set to 150 ms because the signal has not come within a predetermined time. S4
In the case of 0, it is determined whether or not the aperture control magnet 29 has already been turned on. If it has been turned on, the process proceeds to S43, and if not, the process proceeds to S41. In S41, it is determined whether or not the counting of the predetermined EE pulse has been completed. If the counting is in progress, the process jumps to S43.
In step 2, an ON signal is output to the aperture control magnet 29 to lock the aperture.

In S43, it is determined whether or not the position of the movable mirror 110 is to be checked by using a mirror check flag. If the flag is set, the flow proceeds to S44 to determine whether or not the movable mirror 110 is at the up position. Then S4
Jump to 8. In S44, when the movable mirror 110 is at the up position, the process proceeds to S45, where the mirror check flag set in S38 is cleared, and in S46, the time-over data is replaced with the reverse rotation time of about 15 ms, and
At 47, the reverse rotation brake of the mirror motor 36 is started, and the process returns to S40. In S48, the elapse of the interval time for every 1 ms is determined, and if it has elapsed, the flow proceeds to S49 to clear the interval flag for every 1 mS, and otherwise returns to S40. At S50, a time-over check is performed. If the time is over, the process proceeds to S51, and if not, S40 to S50 are repeated. S51
Then, it is determined whether or not the final brake has been executed. If the final brake is required, the flow proceeds to S52 to clear the final brake request flag, and in S53, the short brake for the mirror motor 36 is started. Approximately 1ms to 9ms of short brake time data
Is replaced by

The routine starting with the label "EXPOSURE" in FIG. 14 will be described. In S55, a TV logarithmic expansion process is performed to expand the compressed data of the calculated shutter speed with the clock of the microcomputer so as to be easily measured. In step S56, the shutter count by the hard timer is started. In step S57, the front curtain magnet 27 that has been ON is turned off to cut off the electrical holding, thereby causing the front curtain to start running. After waiting for a predetermined time shorter than that, in S59, the mirror brake is terminated and the mirror motor 36 is set free. In the present embodiment, a case where the shutter speed is low including the tuning speed is described for convenience of explanation. In S60, S5
The hard timer started in step 6 is checked. If it is determined that counting is in progress, S60 is repeated, and the process exits to S61 every time the interval time elapses.

In S61, the upper timer which counts the overflow of the hard timer is checked to determine the shutter time. If it is determined that the shutter time is being counted, the process proceeds to S62, where the upper timer of the shutter time counter is counted. "1" is subtracted from the timer, and the process returns to S60. S61
Then, when it is determined that the counting of the shutter time has ended, S
At 63, the rear curtain magnet 28 that has been ON is turned off to start rear curtain travel. At S64, the travel time of the rear curtain is waited for and the process returns.

As shown in FIGS. 15A and 15B, "MIRRCH
A routine starting with a label such as "K", "WDSHORI", "LOADING", etc. In S65, it is determined whether or not the DOWN of the movable mirror 110 has been completed, that is, whether or not the mirror down switch 95 has been turned on. If it is ON, the process proceeds to a routine beginning with the label "FOECHK", otherwise, the process proceeds to S70.In S67, it is determined whether or not the end of the film F to be wound has already been detected. Proceeding to S70, the winding of the film F and the driving of the movable mirror 110 are started, the winding code is stored, the mirror check flag is set, and the process proceeds to S71. I do.

In the routine starting with the label "WDSHORI", it is determined in S68 whether or not loading is OK. If OK, the process proceeds to S70, otherwise, to S69.
To drive only the movable mirror 110, store the winding code, set the mirror check flag, and jump to S71. In S71, the edge number required to wind up one frame of the film is set.
At 72, the maximum winding time is set as a safety timer, and the end-of-film memory is cleared.
The process proceeds to a routine beginning with a label of "DING". The processing of S69 and S70 is assisted by the configuration of the motor control register.
It is shown in 5C. This register has 2 for mirror and film
Bits are allocated, and bits “0” and “1” are used as a mirror motor code, and bits “2” and “3” are used as a film motor code.

FIG. 1 shows the driving state of the motor for each code.
Shown in 5D. For two bits of each motor code, brake, reverse rotation, normal rotation, and motor free (non-energized) are selected for combinations 3, 2, 1, and 0 of the upper and lower bits.

Referring to FIG . 15E, film winding control is performed.
(Start winding film F, check film speed
Out, brake start waiting time and maximum braking time setting)
Will be described. The CPU 11 winds up the film F
A single filter generated from the film switch 97 during
Control is performed based on the Lum pulse signal. CPU11
Are the rising and falling edges (film) of the film pulse.
From ON to OFF and from OFF to ON
Equipped with an edge counter that counts state changes)
You. In this edge counter, the film switch 97 is turned off.
Do not start counting unless you are in the state of F
Initial setting. That is, the film switch 97
If stopped at the OFF position, the winding operation starts
As soon as it counts up, it counts up to “1”.
When the film switch 97 is stopped at the ON position,
After the winding operation starts, the film switch 97
Counts up for the first time when it is turned OFF and returns to “1”
become. The film switch 97 is a film mode.
Is set to be OFF when the data 37 is stopped.
I have. The above count-up is started and the winding is completed
12th edge indicating the position before the position (17 edges)
When the counter value reaches (the second change number), the CPU 11
Is the time from the 12th edge to the 14th edge (fill
Speed). This measurement is completed (14
Immediately), and adjust the film speed according to the measured film speed.
Calculate the rake start waiting time and the maximum braking time, and
Start the timer that measures the start wait time. Soshi
The first brake when the brake start waiting time has elapsed
(Short Brake) and maximum braking
Start the timer that measures the time between
Passed or the 17th edge (first change number) is detected
Apply the first brake to the film motor 37 until
Then, the film motor 37 is decelerated, and the 17th edge
When detected, the second brake (reverse brake and
Short-circuit brake) to completely activate the film motor 37.
Stop. This completes the winding. in this way
In this embodiment, the film motor 37 is controlled by the timer control.
To start the film brake,
The interval between detection pulses for detection can be reduced or
Frame intervals without the need for complicated mechanical structures
The film precisely and wind up the film in a short time
be able to. If the film load is abnormally heavy,
The maximum braking time (brake) due to the battery
17 edges even after rake braking starts and ends)
If the eyes cannot be detected, the film motor 37 is reconnected.
Appropriate measures such as charging can be taken.

In S73, the initial alternating energizing time ("X" of "200 .mu.S.times.X" because the winding loop is 200 .mu.S) is set. In S74, the interval time is set to 2 times.
Set to 00μS. In S75, the edge counter for counting the edges of the film pulse is cleared, and in S76
Clear the mirror reverse rotation timer. At S77, a film weight for measuring a film brake start waiting time
Clear the timer and measure the maximum braking time in S78
Clear the film brake timer and “WINDLP”
Go to the routine that starts with the label

Referring to FIGS. 16A and 16B, "WINDLP"
The routine that starts with the label is described. In S79, it is determined whether or not the prewind is being performed. If the prewind is not being performed, that is, if the prewind timer is not “0”, the process proceeds to S80,
Otherwise, proceed to S86. In S80, the winding code stored in the memory is read. This winding code distinguishes between the mirror motor 36 alone, the film motor 37 only, and both the mirror motor 36 and the film motor 37. In S81, it is determined whether the prewind has been completed. This is determined based on whether or not the prewind timer has become "0" by subtracting "1". As a result, when the prewind is completed, the process jumps to S85, and otherwise, the process proceeds to S82.

In S82, it is determined whether or not it is time to make the film motor 37 free. If it is time to make the film motor 37 free, the process proceeds to S83; otherwise, the process proceeds to S84. The time for making the film motor 37 free is monitored by monitoring bit 3 of the same prewind timer. If "1", the data of the film motor 37 is corrected as free, and "0" is corrected.
If so, the data of the mirror motor 36 is corrected as free. Since the prewind timer is decremented by 1 every time the loop is rotated, the free of the mirror motor 36 and the free of the film motor 37 are switched every time the loop is rotated 8 times. Are alternately energized.

In S83, the data read so that the film motor 37 becomes free as described above is corrected,
Proceed to S85. In S84, the data is corrected so that the mirror motor 36 becomes free as described above. In S85, the data of the film F and the mirror motor 36 are output. Since the contents of the wind loop are set so as to require a processing time shorter than 200 μS, the remaining time until 200 μS is waited in S86.
That is, whether or not 200 μS has elapsed is determined by the flag of the interval timer, and if it has elapsed, the process proceeds to S87, and if not, S86 is repeated.

In S87, the change of the film switch 97 is determined. Here, processing such as chattering removal is also executed. If there is no change in the film switch 97, "W
The routine proceeds to a routine beginning with a label of "INDLP91". If a change is detected, the flow proceeds to S88, in which a signal is output to the LCD to display winding, and the edge counter is counted up. In S90, it is determined whether or not the film speed needs to be reset, based on the value of the edge counter, and the reset is necessary, that is, the film count is reset.
(End edge NO.) If the position is -5, the film speed counter is cleared and the detection of the film speed is started from this point .

By the way, the judgment in S90 is (end edge NO.)-5, which is about four frames during loading, so that the number of edges is about four times larger. . Even in this case, the film speed is detected from the fifth edge before the end position, and a check is made so that the same control can be performed in the case of loading and in the case of winding. The film speed changes during winding
However, in this embodiment, the winding end position
Because we try to detect as close as possible to
To find the feeding speed more accurately near the end position
Can be. In S91, the film speed counter is cleared.

In S92, when the film speed counter is checked, if (End Edge No.)-3 is reached, the measured film speed can be used for actual control. Therefore, from (End Edge No.)-5 to (End) Edge NO.) −
The time data up to 3 is fetched from the film speed counter to calculate the brake time (S93). This brake time calculation is performed using the “FMBKCAL” shown in FIG.
Calls a subroutine that starts with the label In the present embodiment, the time data immediately before the end of winding is used for the calculation, so that the brake start waiting time and the maximum braking time are more appropriately set.
Can be set to positive. In S94, whether or not the film is at the winding end is determined by the end edge number and the edge counter. If the film edge at the winding end has not been reached, the routine proceeds to the "WINDLP91" routine. If it is determined in S94 that the winding of one frame of the wind end is completed,
Jump to "WINDED" in FIG.

When the operation is continued during the 200 μS loop, the mirror down switch 96 shown in FIGS. 17A and 17B is checked. That is, in S95, the mirror down switch 96 is turned on in the same manner as the mirror up process.
Is determined using the mirror check flag. As a result, when necessary, S96
Otherwise, the process proceeds to S100. In S96,
It is checked whether the mirror down switch 96 has been turned ON. If it is ON, proceed to S97; otherwise, S1
Go to 00. In S97, since it is not necessary to check the mirror down switch 96 thereafter, the mirror check flag is cleared, the mirror reverse brake time is set in S98, and the braking of the reverse brake of the mirror motor 36 is started in S99. I do.

In S100, it is determined whether or not the mirror is rotating in reverse, based on whether or not the mirror reverse rotation timer is "0". If the mirror is rotating backward, the process proceeds to S102, otherwise, the process jumps to S101.

In S102, the mirror reverse rotation timer is decremented by one. In S103, it is determined whether or not the reverse brake of the movable mirror 110 has ended based on whether the result of the processing in S102 is "0". As a result, when the process is completed, the process proceeds to S104, and otherwise, the process proceeds to S101. In S104, the final brake of the mirror motor 36 is braked, and the process proceeds to S105 to determine whether or not the mode is the mirror only mode. As a result, if the mode is only the mirror, "WIND00"
Proceeds to the routine starting with the label of, otherwise, S1
Go to 01.

In S101, during the brake start waiting time
Determine if there is. During the brake start waiting time
Then, the film weight timer counts down by 1,
Check whether the film wait timer has reached 0
(S101; Y, S106, S107). the film
When the wait timer reaches 0, wait for the brake to start
Since the time has elapsed, the first shake
Start applying brakes and re-energize the film brake timer
(Maximum braking time) Set memory data and proceed to S110
(S107; Y, S108, S109). This fill
The system brake timer keeps the final
No. Is not detected, the film motor 37
Set to restart DC energization and complete winding
It is a timer. When the brake start waiting time is not in progress (S
101; N), when the wait timer is not 0 (S10
7; N) proceeds to S110.

In S110, it is determined whether or not the film brake is operating . If active, film brake
Count down 1 from the timer
It is determined whether the value has become 0 (S110; Y, S1)
11, S112). Film brake timer reaches 0
The film motor 37 is re-energized and
The process is restarted, and the process proceeds to S114 (S112; Y, S11)
3). After the start of DC energization, there is no timer setting.
End edge NO. Through the film motor 37 until
The last edge NO. When the second break
To stop the film motor 37 suddenly. fill
When the brake is not operating (S110; N),
When the film brake timer is not 0 (S112; N)
Proceeds to S114.

In S113, winding of the film motor 37 (DC energization) is restarted, and in S114, a film speed monitoring process is executed. In this process, the counter is set to “+” every 200 μS until the maximum count is reached.
This is a process of incrementing 1 ”. S115,
S116 is a so-called safety timer of the wind loop,
Since this is a timer divided into one byte at a time, it is checked whether the lower byte is over or the upper byte is over. In S115, it is determined whether the timer of the lower byte has decremented by 1 or not. If the underflow has occurred, the process proceeds to S116. If the underflow has not occurred, the process returns to the beginning of the wind loop starting with "WINDLP". Similarly in S116,
Judgment is made of the result of decrementing the timer, and if there is no underflow, return to the beginning of the wind loop starting with "WINDLP". When underflow occurs, that is, when the interval between edges is opened for a predetermined time, that is, for a predetermined time. When the desired edge number, such as 17 edges, is not reached, the routine proceeds to a routine starting with the label "AUTORW".

Referring to FIG. 18, "WINDED" and "WI
A subroutine starting with the label “NDED00” will be described.
The brake is applied to both the mirror motor 36 and the film motor 37. The final brake is applied to the mirror motor 36, and the film-related control is executed in that state. In S117,
A reverse rotation brake is applied to the film motor 37 and a short brake is applied to the mirror motor 36. In S118, 5
In step S119, a short brake is applied to the mirror motor 36 and the film motor 37. S12
0, count up the number of films and EEPROM
30 is written and further displayed on the CCD.
In S121, it is determined whether or not loading is being performed. As a result, during loading, the load is OK in S122.
Set the flag, otherwise return. this
As described above, in the present embodiment, the edge counter value is the last edge N
O. The second brake (reverse brake and system)
Short-circuit brake) to quickly activate the film motor 37.
The film is stopped at the winding end position.
This makes it possible to precisely align the frame intervals of the film.

In the “WIND00” routine, S
At 123, set the film gear series to the winding side
To rotate the film motor 37 forward,
Apply the short brake to 36 and fly to S118.

FIG. 19 shows a routine starting with the label "AUTORW". In this "AUTORW", a short brake is applied to the film motor 37 and the mirror motor 3
Set 6 free and check the winding mode. In the case of the mirror motor 36 alone, auto rewind does not matter, so it only returns when the time is over. When the film F is wound up, it is checked whether or not the film is being loaded. Load O whether it was in or not
Judge by the K flag. If loading is in progress, determine whether a film is loaded.

In S124, a short brake is applied to the film F to make the mirror motor 36 free. S12
In 5, it is determined whether or not the mode is the mirror only mode. If the mode is the mirror only mode, the process returns. Otherwise, the process proceeds to S126. In S126, it is determined whether or not loading is in progress. If loading is in progress, the flow proceeds to S127; otherwise, the flow proceeds to S128. In S128, it is determined whether or not the cueing has been completed, that is, whether the loading is OK or not. If the loading is OK, the process proceeds to S129. If the loading is not OK, there is no film F and it is necessary to perform auto rewind. There is no return. In S129, the fact that the end of the film F has been detected is written in the EEPROM 30, and "REWIND"
Go to the routine that starts with the label

In S127, it is determined whether or not the film F is present based on the information from the patrone information input unit 25. If it is determined that the loading has timed out due to the presence of the film F, the flow proceeds to S130, and a load error is detected. The program returns to the EEPROM 30 and returns. As a result,
If there is no film F, the process jumps to S131 to set the number of films to "1" so that the subsequent processing can be performed.

Referring to FIG. 20, a subroutine starting with the label "FMBKCAL" will be described. This process is performed on the edge
NO. Time detection data between 12 and 14 (film speed
C) based on the braking start wait time and maximum braking
This is a subroutine for calculating the interval .

In S132, since “speed × brake operation coefficient ± offset = brake start waiting time”, the “brake operation coefficient” and “offset” are set to EEP.
Input from the ROM 30. In S133, a brake operation coefficient is multiplied by the film speed to obtain a brake start waiting time. In S134, addition / subtraction of the offset is performed.
In S135, it is determined whether or not the offset is positive. If so, the process jumps to S138; otherwise, S136.
Proceed to. In S136, it is determined whether or not the operation result is "negative".
Go to S7, otherwise jump to S138.

In S137, the performance of the brake start waiting time is performed.
Since the calculated data is “negative”, when waiting for the shortest brake start
The interim data is set as the above calculation data. S13
8, the calculated data of the brake start waiting time is the maximum value MA.
It is determined whether or not the value is larger than X. If the value is larger than the maximum value MAX, the process proceeds to S139; otherwise, the process jumps to S140. In S139, the calculation data is the maximum value MAX.
The maximum braking start wait time data
Set as operation data.

In S140, since the timer must be finally set in units of 200 μS, digit alignment is executed in order to correct the shift caused by the multiplication. S14
1, the brake start wait time is set to the film wait timer.
And start, and the maximum braking time
(Re-energization time) is stored in the memory. The routine shown in the flowchart of FIG. 20 may be calculated in consideration of conditions such as battery voltage, temperature, and the number of films. Considering this number of films,
This is because, as the film F is gradually wound, the diameter gradually increases and the torque changes.

In the present embodiment, the "brake start waiting time" is calculated using 8-bit data. The break
The maximum braking time to keep applying the key is "predetermined time (51 mS)-
Brake start waiting time = maximum braking time.This “maximum braking” is a so-called safety time, which is formed by inverting “1” and “0” of the brake start waiting time. 255 ” , and the loop time is 0.2 ms for the predetermined time, so it is set to about“ 0.2 × 255 = 51 ms ”. That is, when the brake is to be braked after 20 ms, the maximum time for continuing the brake is 30 ms.
If you want to brake after 30mS, continue to apply the brake
The maximum time to run is 20 ms. Within this maximum braking time, 17
If an edge cannot be detected, release the brake and
Resumes DC power to film motor 37 and feeds film
To continue.

According to FIGS. 21A and 21B, “REWIN”
A subroutine starting with the label "D" will be described.
In step S2, a subroutine "battery check process" is called and the end-of-film flag is cleared in step S143, and a rewind flag is set in step S144. S
At 145, a 50 ms hard timer initial setting and timer start process are executed. At S146, a soft timer of 2.5 seconds is set to wind the leader section, that is, to completely wind the film F into the cartridge.
In No. 7, in order to delay the subtraction of the number of films to some extent and prevent the back cover from being opened when the number of films reaches "0", the edge NO.
Is set. This edge counter is set in correspondence with the loading edge counter. S
At 148, rewind energization is started.

In S149, the change of the film F is judged, that is, it is judged whether or not the change is surely made by removing the chattering or the like. As a result, if there is a change in the film F, the process proceeds to S150; otherwise, the process jumps to S156. In S150, the 2.5 second timer is reset, and S
In step 151, a film-linked display is output to the LCD display 23, and in step S152, the edge counter is decremented by one. S153
Then, it is determined whether or not the number of films has been reduced, that is, whether or not the edge counter has become “0”. As a result, if it becomes "0", the edge counter for detecting the next one frame is set to "16" (S1).
54), otherwise proceed to S156.

In S155, the number of films is subtracted, and
In S156, it is determined whether or not the back cover has changed from closed to open. If the back cover has changed, the process jumps to S161; otherwise, the process proceeds to S157. In S157, the 50 ms interval timer flag is checked to determine whether 50 ms has elapsed.
That is, the loop detection of 50 ms is determined, and every time the loop is detected, S15
Proceeding to S8, otherwise repeat the rewind loop from S149. In S158, it is determined whether or not the film winding time of 2.5 seconds has elapsed. When 2.5 seconds have elapsed, the process proceeds to S159, in which the reversal brake is started as the rewind end, and if not, the rewind loop from S149 is repeated. In S160, a 50 ms wait is executed. In S161, a short brake is started. In S162, a 50 ms wait is executed. S163
Then, the film motor 37 is set free and the braking is terminated. In S164, the film counter flag is cleared. In S165, the rewinding flag is cleared.
Proceed to “SWICHK”.

A subroutine starting with the label "BATCHK" will be described with reference to FIG. In S166, the load for battery check is turned on, and the process proceeds to S167. In step S167, a signal is output to the communication line 17 so that the battery voltage connected to the peripheral circuit is output as the analog signal 16, and other preparations for performing A / D conversion are performed. move on. In S168, a wait of 5 ms is executed to cope with a delay in the response of the battery voltage after the battery load, and the process proceeds to S169. In S169, A
/ D conversion process converts the battery output to digital
At 170, a value (comparison level) for comparing the battery level is input from the EEPROM 30. S171
Then, it is determined whether or not the battery output is lower than the level at which the camera operation should be locked. If the battery output is lower than this value, the flow advances to S172 to set the BC lock flag to lock the camera function, otherwise to S174. move on. S1
At 74, it is determined whether or not the battery voltage is lower than a level at which a warning should be issued.
C. Set the warning flag. If it is not low, the flow proceeds to S175 to clear the BC lock flag, and further proceeds to S176 to clear the BC warning flag and proceeds to S177.
In S177, the load of the battery is turned off. In S178, it is determined whether or not the vehicle is in the BC locked state. If the vehicle is in the BC locked state, the process proceeds to "SW1CHK" to power down, otherwise returns.

[0081]

As described above, according to the film winding apparatus of the present invention, the film at the position immediately before the end of the feeding
Waiting time for brake start according to feed speed and maximum braking
Between the feed motors
Since the brake braking is started, a simple structure that does not require a complicated structure such as making the interval of the detection pulse for detecting the film stop position fine and high precision is provided, but high accuracy is provided for the film stop position. This makes it possible to precisely align the frame intervals of the film and to wind up the film in a short time.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing a control block of the present embodiment.

FIG. 2 is a diagram showing initial positions of a mirror driving mechanism, a charging mechanism, and an aperture driving mechanism of the embodiment.

FIG. 3 is a diagram showing a state where the shutter travel of the mechanism shown in FIG. 2 has been completed.

FIG. 4 is a diagram showing a shutter charge completed state of the mechanism shown in FIG. 2;

FIG. 5 is a diagram showing a mirror code plate of a code block unit of the embodiment.

FIG. 6 is a view showing a meshed state between the film code plate and the interlocking gear of the embodiment.

FIG. 7 is a view showing in detail a film contact brush of a code block portion of the embodiment.

FIG. 8 is a front view showing a film feeding system and a film rewinding system of the embodiment.

FIG. 9 is a bottom view showing a film feeding system and a film rewinding system of the embodiment.

FIG. 10 is a time chart showing a waveform of an energizing current for explaining alternate energizing to the mirror motor and the film motor of the embodiment in a stepwise manner.

11A and 11B are diagrams showing “RESET” and “SW” of the embodiment.
It is a flowchart which shows the routine which starts with the label of "1CHK".

12A to 12C are diagrams showing "RESTART" of the embodiment.
It is a flowchart which shows the routine which starts with the label of "VDDLP".

13A and 13B are flowcharts showing a routine starting with a label of "MIRRUP" of the embodiment.

FIG. 14 is a flowchart showing a routine starting with a label “EXPOSURE” of the embodiment.

15A and 15B are “MIRRCHK” of the embodiment.
“FOECHK” “WDSHORI” “LOADIN
It is a flowchart which shows the routine which starts with the label of G ".

FIG. 15C is a diagram showing a configuration of a motor control register of the embodiment.

FIG. 15D is a diagram showing a motor cord of the embodiment.

FIG. 15E is a diagram showing pulses output by the film switch when the film is fed in the embodiment.

16A and 16B are flowcharts showing a routine starting with a label “WINDLP” of the embodiment.

17A and 17B: “WINDLP91” of the embodiment.
9 is a flowchart showing a routine that starts with the label "."

FIG. 18 shows “WINDED” and “WINDED” in the embodiment.
It is a flowchart which shows the routine which starts with the label of 00 ".

FIG. 19 is a flowchart showing a routine starting with a label “AUTORW” of the embodiment.

FIG. 20 is a flowchart showing a routine starting with a label “FMBKCAL” of the embodiment.

21A and 21B are flowcharts showing a routine starting with a label of “REWIND” of the embodiment.

FIG. 22 is a flowchart showing a routine starting with a “BATCHK” label in the embodiment.

[Explanation of symbols]

 Reference Signs List 10 Gear train 11 Central processing circuit 12 A / D converter 13 Pulse counter 14 Interval timer 15 ROM / RAM 16 Analog signal line 17 Communication line 18 EE pulse signal 19 Peripheral circuit 20 DC / DC converter 21 Regulator 22 Oscillator 23 LCD display 24 Lens Information Input Unit 25 Patrone Information Input Unit 26 Switch Information Input Unit 27 Front Curtain Magnet 28 Rear Curtain Magnet 29 Aperture Control Magnet 30 EEPROM 31 Photodetector 32 EE Pulse Control Photocoupler 33 Mirror Motor Driver 34 Film Motor Driver 35 Battery 36 Mirror motor 37 Film motor 42 43 One rotation gear 50 Film feeding system 51 Holding panel 52 Film rewinding system 62 Sprocket shaft 71 Rewinding shaft 80 Proket 81 Perforation 83 State detection brush 86 GND contact 89 Code block part 90 91 Film contact brush 94 Film code plate 95 Mirror up switch 96 Mirror down switch 97 Film switch 98 Release switch 99 Photometry switch 100 Mirror drive mechanism 101 Mirror up member 103 Mirror Up cam 104 Support shaft 105 State switch 110 Movable mirror 111 Movable mirror sheet 113 Mirror restoration spring 150 Rewind switch 151 Back cover switch 152 UP / DOWN switch 153 Mode setting switch 200 Charging mechanism 210 Set lever 201 Shutter charging member 203 Charge cam 400 Aperture Drive mechanism 401 Aperture control block 402 Aperture restriction lever 40 Slide plate 404 open aperture setting member 409 restoring spring 412 lever 415 coupled spring 416 aperture control cam 502 state detection code F film

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-58-24123 (JP, A) JP-A-1-152441 (JP, A) JP-A-4-69636 (JP, A) 130751 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G03B 17/00

Claims (2)

(57) [Claims] 1. A film with a feed motor for feeding; conjunction with the feeding of the film by the feed motor, the film
A single switch means that is turned on and off every time the light source moves by a predetermined amount ; counting is started by the first change of state of the switch means from on to off or from off to on, and this state change from off to on the modified each time you change to off or from on
Counter means for counting the number of conversions ; a count value of the counter means indicating a feed end position
When a second number of changes less than one is reached,
Measure the film feed speed near the feed end position
Speed measuring means; the feeding from the time of the measurement according to the measured feeding speed ;
Brake release until the first brake is applied to the motor
First setting means for setting a start waiting time; operating the first brake according to the measured feeding speed ;
A second setting means for setting a maximum braking time only continue; feeding the paper from the time the brake start wait time has elapsed
Apply the first brake to the motor to start deceleration,
Before the maximum braking time has elapsed, the counter
When the default value reaches the first number of changes, the second break
And a control means for stopping the feeding motor over key; camera film winding apparatus characterized by comprising a. 2. A film wrapping device for a camera according to claim 1.
The control means may control the counter within the maximum braking time.
When the counter value of the means does not reach the first number of changes
Release the first brake and restart the feed motor.
Drive, and when the count value reaches the first change number
Apply the second brake to the feed motor and stop suddenly.
Film hoisting device for camera.