JPH0876204A - Film feeder for camera - Google Patents

Abstract

PURPOSE: To provide a film feeder for camera capable of stopping the photographic picture frame of a fed film to an aperture with excellent accuracy in a position and detecting the last frame without applying a load to a film, for stopping the feeding of the film. CONSTITUTION: The film feeder for camera is equipped with the film 1 having a perforation in a fixed position, a film driven roller rotation detecting circuit 15 generating a pulse signal based on the speed of rotations of a film driven roller 13 rotated with the movement of the film 1 and constituted so that a feeding motor is driven and stopped with a prescribed number of pulses arbitrarily set, basing on time that the perforation is detected by a perforation detecting part, (sensor) 17 as a reference, to control the feeding of the film 1 and the last frame is detected to stop the feeding of the film.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film feeding control device, and more particularly to a film feeding device for a camera provided with a minimum perforation for securing a sufficient information storage area on the film.

[0002]

2. Description of the Related Art Generally, a roll film is provided with perforations on the upper and lower sides for feeding. The image pickup device in which the roll film is loaded is equipped with a mechanism for fitting the sprocket into the perforation hole of the film and winding up the film when winding the film.

As a mechanism for feeding such a film, for example, there is a film feeding mechanism described in Japanese Patent Application Laid-Open No. 4-212943. As shown in FIG. 52, two perforation detectors are installed at positions where the perforations pass, and when the first perforation detector installed upstream in the film feeding direction detects the perforations. There is provided a film feeding control device that slows down the film feeding speed and stops the film feeding when the perforation is detected by the second perforation detection section installed downstream.

Further, regarding a film having a perforation on the end side of the final frame as disclosed in Japanese Patent Laid-Open No. 4-180046, the following predetermined point is detected from the time when the perforation for film positioning is detected. There is disclosed a film feeding apparatus that measures the time until the perforation is detected, and determines the maximum when the time is shorter than the reference time. Further, a film in which the perforation is reduced in order to further increase the information recording area, for example, as shown in FIG. 54, a film having no perforation after the final frame is conceivable. FIG. 54
With respect to the film shown in (1), it is generally known that after the perforation is detected, if the next perforation is not detected within a certain fixed time, it is judged as the final frame.

[0005]

However, in the film feeding device of the film feeding mechanism described in Japanese Patent Laid-Open No. 4-2129493, the film feeding control is performed by detecting the perforation. Therefore, it can be controlled only by the resolution of the width of the perforation formed at the time of manufacturing the film. Therefore, it is difficult to stop the fed film with respect to the aperture with high positional accuracy.

Further, two perforation detectors of the film feeding device are required for practical use. Further, in JP-A-4-180046,
The certain period of time must be set long enough to guarantee one frame winding even when the feeding speed is slow, such as when the temperature is low or the battery voltage is low. On the contrary, when the temperature is not low Also, when the feeding speed is high such as when the battery voltage is high, the film end may be pierced and the film or the feeding system mechanism may be damaged.

Therefore, the present invention provides a film feeding device for a camera, which stops the photographic frame of the film fed with respect to the aperture with high positional accuracy and is capable of detecting the last frame without imposing a load on the film. The purpose is to

[0008]

In order to achieve the above-mentioned object, the present invention provides a motor-driven film feeding apparatus capable of using a film provided with two perforations for each frame photographing area. Includes perforation detection means that outputs a pulse signal corresponding to the movement of perforations accompanying feeding, and a rotatable roller member that is in contact with the film piece, and outputs a pulse signal corresponding to the amount of movement of the film piece due to feeding The moving amount detecting means, the output of the perforation detecting means, and the output of the moving amount detecting means are input, and counting means for counting the number of respective signal pulses are included. Based on the output of the counting means, the film is being wound. The film feed speed is reduced in response to the signal from the perforation detection means. When the film feeding is stopped in response to the signal from the movement amount detecting means, and a signal of a predetermined number or more is generated from the movement amount detecting means before the signal from the perforation detecting means is generated, Provided is a film feeding device for a camera, which comprises a control means for judging the end of the film and stopping film winding.

Furthermore, a film provided with two perforations can be used for one frame of the photographing area,
In a film feeding device driven by a motor, the film is fed by a perforation detecting means for outputting a pulse signal corresponding to the movement of the perforation accompanying the film feeding, and a rotatable roller member in contact with the film piece. A moving amount detecting means for outputting a pulse signal corresponding to the moving amount of the piece, an output of the perforation detecting means, and an output of the moving amount detecting means, and a counting means for counting the number of respective signal pulses Based on the output of the counting means, at the time when a predetermined number of pulse signals are input from the movement amount detecting means during film winding, when the signal from the perforation detecting means does not occur, it is determined that the film is the end, Film feeding of camera composed of control means for stopping film winding To provide a location.

[0010]

In the film feeding device of the camera having the above-mentioned structure, the pulse signal is generated by the second detecting means on the basis of the number of rotations of the film driven roller which rotates with the movement of the film provided with the perforations at the predetermined position. Is generated,
The decelerating feeding of the film feeding by the feeding means is started or stopped by a predetermined pulse number which is arbitrarily determined with reference to the perforation detection time detected by the first detecting means.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. First, the outline of the film mounted on the film feeding device of the camera of the present invention will be described.

As shown in FIG. 2, the film 1 is rolled up and stored in a cartridge 2.
When the leading end side of the film 1 is pulled out from the cartridge 2, the leader portion A thereof is provided with two sets of four perforations. In addition, F1, F2 in FIG.
.., F36 indicate the photographed frames 3, and one perforation is provided above the start end and the end of each photographed frame.

Of the two perforations provided on the photographing frame 3, the perforation provided on the leading end side of the film is the first perforation 5, and the perforation provided on the trailing end side of the film 1 is the second.
Perforation 6 is used. Further, in the final frame, in addition to the two perforations, another perforation (hereinafter referred to as a third perforation PA) next to the first perforation 5 as shown in FIG. 2 is d2> d1 (d2: the second perforation). The distance between the first perforation and the second perforation 6, d1: the distance between the first perforation 3 and the third perforation). Further, a perforation P0b as shown in FIG. 2 is provided in front of (on the leading end side of) the first perforation of the first shooting frame.

Further, as shown in FIG. 3, between the first and second perforations 5 and 6, a magnetic track for recording various kinds of photographing data above the photographing frame 3 and below the photographing frame 3. 4, 7 are provided. In addition, the magnetic track 4 above the photographing frame 3 is used as the magnetic track.
May be a track for optically recording information. Further, a screen size information recording area 8 for optically recording information such as a print screen size at the time of printing may be provided below the photographing frame 3.

Next, FIG. 1 shows a schematic structure of a film feeding apparatus for a camera as a first embodiment according to the present invention. Further, FIG. 4 is a perspective view schematically showing the inside of the camera in which the film feeding device having the configuration shown in FIG. 1 is in a photographing standby state.

The film feeding device of this camera comprises a film 1 having the above-mentioned structure, a cartridge 2 for accommodating the film 1, and a spool shaft 9 for winding the film 1.
An R fork 10 that matches the spool shaft 9 and transmits the drive of the feed motor 12, a film winding hoisting shaft 11 provided on the camera side, the hoisting shaft 11 and the spool shaft 9. A feeding motor 12 to be driven, a film driven roller 13 that is pressed against the film 1 and rotates as the film moves, a rotation detector (sensor) 14 for detecting the rotation of the film driven roller 13, and a rotation detection. Film driven roller rotation detection circuit 15 for driving the device 14, a pressure plate 16 for pressing the film, a perforation detection unit (sensor) 17 for detecting the perforation of the film 1, a perforation detection circuit 18, and a winding device. Motor control circuit 19 for driving and controlling the feeding motor 12 of C, and C for controlling each of the above-mentioned components. It is composed of a U20. Further, a drive mechanism 21 for transmitting the driving force of the feeding motor 12 to the R fork 10 is provided.

Next, FIG. 5 shows the film driven roller 1 described above.
3 will be described. In the film driven roller 13, the driven roller main body 31 is made of, for example, a cylindrical rubber, and the polyhedral reflecting portion 32 is provided on the main body. The polyhedron reflector 32 is
When viewed from above, it is a polygon, and each surface is a mirror that can reflect light.

The driven roller main body 31 is provided with a shaft 33 at the center of the main body and is rotatable while being pressed against the film 1. Furthermore, the polyhedron reflector 32
A photo-reflector 34 is provided in the vicinity of, and when the driven roller main body 31 rotates as the film 1 moves, the polyhedral reflecting portion 32 also rotates. The polyhedron reflector 32 is irradiated with sensor light from the photo reflector 34, and the reflected light is detected. The reflected light is intermittently detected so as to follow the rotation of the polyhedron reflector 32, and a pulse waveform as shown in FIG. 7B is output based on the intermittently detected signal.

Next, the film feeding operation by the film feeding device thus constructed will be described. Figure 6
FIG. 7 is a schematic flow chart showing a release sequence of the camera of the present embodiment, and FIG. 7 is a time chart showing operation waveforms of respective parts of the control device in one frame winding in the release sequence shown in FIG. 7 (a)
Shows a perforation detection waveform, FIG. 7B shows a film driven roller rotation detection waveform, FIG. 7C shows a film feeding speed, and FIG. 7D shows a feeding motor drive voltage. .

First, attach the cartridge 2 to the camera,
Close the rear lid of the camera. Then, it is detected that the lid is closed (step S1), the feeding of the film 1 is started, and the leading end of the film is wound around the spool shaft 9 (step S1).
2). When the amount of film 1 to be fed out (film length) reaches a predetermined amount (step S3), the film is further wound by one frame (step S4) and stopped at a position where the first image frame (F1) can be imaged. To do. The predetermined amount is
As will be described later, it is determined by detecting a predetermined rotation number (pulse number) of the film driven roller 13 and perforation.

Next, it is checked whether or not the photographed frame has reached the film end (step S5), and if it has reached the film end (YES), the film 1 is replaced by the cartridge 2
Rewind to the end. However, if the film end is not determined (NO), the camera waits for shooting as shown in FIG.

When an unillustrated 1st release switch is pressed (step S6), distance measurement and photometry are performed by a distance measurement and photometry device (not shown) (step S7).
When the second release is further turned on (step S
8) Then, the taking lens 22 is driven based on the values obtained by the distance measurement and photometry (step S9), and exposure is performed (step S10).

Upon completion of the exposure, the taking lens 22 is reset (step S11), and the process proceeds to step S4 to wind up one frame so as to be ready for the next taking. During this winding, the film driven roller 13 rotates, and the rotation detector 14 and the film driven roller rotation detection circuit 15 generate a pulse according to the moving amount of the film 1 as shown in FIG. 7B. To do.

Regarding the operation of starting and stopping the winding of one frame described above, for example, the film shown in FIG. 2 is exposed to the shooting frame F1, the film is wound to the next shooting frame F2, and the shooting standby state is set. Using that as an example,
This will be described with reference to the flowchart of FIG.

First, after the exposure is finished, film feeding is started (step S21), and counting of the number of film driven pulses as shown in FIG. 7B is started (step S).
22). When the second perforation 6 of the photographing frame F1 is detected, that is, when the trailing edge signal shown in FIG. 7A is detected (step S23), the number of film driven pulses from the film feeding to the trailing edge signal detection is predetermined. It is determined whether or not it is a value (step S24), and if it is less than or equal to the predetermined value (YES), it means that the falling signal shown in FIG. Step S25). Further next perforation (second perforation 6)
The film is fed until it is detected (step S
26).

If it is equal to or more than the predetermined value in step S24 (NO), it is determined that the second perforation 6 is detected, and in step S26, the second perforation 6 is detected.
If is detected, deceleration control is started (step S2).
7).

As the deceleration control method, there is a method of lowering the motor drive voltage to decelerate, a method of reading the pulse width and decelerating the motor drive by opening, short braking, forward rotation and reverse rotation according to the pulse width. A method of driving a motor by duty to decelerate the motor is well known.

For example, FIGS. 9 (a) and 9 (b) are timing charts of the motor drive voltage and the film feeding speed in the method of reducing the motor drive voltage to reduce the speed, and FIGS. 9 (c) and 9 (d). 6 is a timing chart of a motor drive voltage and a film feeding speed in the method of reading the pulse width and performing deceleration, and FIGS. 6 (e) and 6 (f) are motor drive voltage of the method of driving the motor by duty to decelerate. 3 is a timing chart of film feeding speed.
Although FIG. 7 shows a method of controlling the reading of the pulse width, any of the deceleration control methods described above may be used.

In step S27, after the deceleration is started, the film driven roller signal is stopped when a predetermined number of pulses are detected so that the next shooting frame F2 can be accurately positioned at a position facing the aperture without overrun. It is possible to stop it.

Further, FIG. 10 and FIG. 11 show the above-mentioned first
10 is a timing chart showing a modified example of the embodiment, and FIG. 10 is a deceleration control (step S27) when the rising signal of the second perforation of the photographing frame F1 is detected in the perforation detection of step S23 shown in FIG. It was designed to move to
The same effect as the embodiment can be obtained. Further, since the timing of starting deceleration is delayed compared to the first embodiment, it is possible to shorten the control time for winding one frame.

FIG. 11 shows step S2 shown in FIG.
In the perforation detection of 3, the shooting frame F
The second fall signal of the first perforation is detected, and the process proceeds to the deceleration control step S27. The same effects as in the first embodiment can be obtained in the same manner as in the modified example. Since the timing of deceleration start can be further delayed, the control time for stopping the film feeding can be further shortened.

Next, a film feeding device for a camera as a second embodiment of the present invention will be described. The second embodiment has the same structure using the same film as the first embodiment described above, and only the characteristic portion will be described.

FIG. 12 is a timing chart showing the film feeding of the film feeding apparatus of the second embodiment, and FIG. 13 shows a flow chart thereof for explanation. In the camera in the photographing standby state shown in FIG. 4, when a release switch (not shown) is pressed, the camera is exposed as shown in the flowchart of FIG. 6, and one frame is wound up in preparation for the next photographing. Here, as in the case of the first embodiment described above, the exposure of the photographic frame F1 is completed and one frame is wound onto the photographic frame F2.

Next, as shown in FIG. 12, when winding one frame, the feeding is first started (step S31), and the counting of the number of pulses generated by the film driven roller 13 is started (step S32). ). Then, the number of driven pulses generated is compared with a predetermined value PA (step S33), and when the predetermined value PA is reached (NO), deceleration control is started (step S34). This deceleration control is the same as the deceleration control of the first embodiment, and the description is omitted.

Next, when the falling signal of the second perforation 6 of the photographing frame F1 is detected (step S3)
5) Then, the count value of the film driven pulse counted so far is reset (step S36), and the film driven pulse from that point is newly counted (step S37).

When the film driven pulse reaches the predetermined pulse number PB (step S38), the deceleration control is stopped (step S39), and the film feeding is stopped (step S40).

In the determination in step S33, if the number of driven pulses generated is equal to or less than the predetermined value PA (YE
S) If perforation is detected (step S41), this perforation is determined as the third perforation and stored as the film end (step S42). When the second perforation 6 is further detected (step S43), deceleration control is performed (step S44), the process proceeds to step S40, and the film feeding is stopped.

Therefore, in the second embodiment, it is possible to stop the shooting frame with high position accuracy with respect to the aperture. In this embodiment, the deceleration control is performed by the second perforation detecting means of the exposed frame F1, and the feeding time is longer than that in the first embodiment, but it is effective for the feeding mechanism that is hard to stop. Is.

Further, in FIG. 14 and FIG. 15, the above-mentioned second
The timing chart which shows the modification of an Example is shown. FIG.
In the modification shown in FIG. 4, the deceleration control is performed on the basis of the count value of the film driven pulse generated by the film feeding based on the detection of the rising signal of the first perforation of the photographing frame F1.

In the modification shown in FIG. 15, the photographing frame F2 is used.
The trailing edge signal of the second perforation is detected and the count value of the film driven pulse is refreshed. These modifications have the same effects as those of the second embodiment.

Next, referring to FIG. 16, a film feeding device for a camera as a third embodiment of the present invention will be described. In the constituent members of the third embodiment, the same members as those shown in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. Further, FIG. 17 shows a shooting standby state in the third embodiment. Further, as the film used in this embodiment, as shown in FIG. 3, a film provided with a magnetic track below the photographing frame is used.

The film feeding device of this camera is provided on the opposite side of the film 1 which is wound around the spool shaft 9 of the cartridge 2 in a roll shape and accommodated, through an aperture opening (not shown), and the film 1 is wound up. The shaft 11, the film driven roller 13 that rotates as the film moves, and the driven roller rotation detection unit 14 that optically detects the rotation state (number of rotations) of the film driven roller 13.
A pressure plate 16 provided on a rear lid (not shown) for pressing the film 1, a perforation detection unit 17 for detecting perforation provided on the film 1, a driven roller rotation detection circuit 15, a perforation detection circuit 18, and the film. 1. A magnetic head 36 for contacting the magnetic tracks 7 and 8 of 1 to write information, a magnetic data writing circuit 37 for driving the magnetic head 36, and a copy for optically recording the screen size on the film 1. Embedded LED 38 and screen size writing LED control circuit 3 for driving the imprinted LED 38.
9, a motor control circuit 19 for film feeding, and a CPU 12 for controlling each of the above-mentioned components.

In this embodiment, a magnetic data writing function and a screen size information writing function using an LED are added to the first and second embodiments. With reference to the timing charts shown in FIGS. 18 to 23 and the flowchart shown in FIG. 24, the one-frame winding operation and the writing operation of the magnetic data and the screen size information in this embodiment will be described. This will be described with reference to FIG. 18 as an example.

First, when the winding of one frame is started, the counting of the film driven pulse is started (step S51,
S52), magnetic data is written in synchronization with the trailing edge of the film driven pulse (step S5).
3). At this time, the film-driven pulse that is generated generates a number of pulses according to the moving amount of the film, so that even if the film feeding speed becomes uneven and the pulse width is slightly different, magnetic data is recorded at equal intervals. It becomes possible.

Next, when perforation is detected (step S54), the obtained film driven pulse number is compared with a predetermined value (step S55), and if it is less than the predetermined value (YES), the film end is judged, The film end is stored (step S56). After that, when perforation is detected (step S57), deceleration control is performed (step S60).

In step S55, if the obtained number of film driven pulses exceeds a predetermined value (N
O), it is judged whether the film driven pulse number is a predetermined pulse number n (step S58), and if it is the predetermined number n (YES), the screen size information is printed in synchronization with the rotation of the driven roller. The LED 38 imprints it on the film 1 (step S59) and controls the deceleration (step S6).
0).

From the above, in the present embodiment, the writing of the magnetic data was synchronized with the trailing edge of the film driven pulse, but the invention is not limited to this. It may be synchronized with both the falling edge and the rising edge. Regarding the screen size information writing, as shown in FIG. 18, after the film feeding is started, when the film driven pulse detects a predetermined pulse number n, the LED 38 writes the screen size information. In this embodiment, the write data is, for example, 2 bi.
The data of t is recorded as 00: normal screen, 01: high-definition size, 10: panoramic size, and of course, it is not limited to this.

19 to 23, the predetermined value of the film driven pulse number is changed to shift the deceleration start from that of FIG. 18, and the numerical value of the predetermined pulse number n and the counting start time are changed. In this example, the film feeding motor is stopped. Although not shown in FIGS. 19 to 23, the screen size information can be written by the LED 38 in the same manner.

As described above, in the third embodiment, the film can be moved and stopped at an accurate position with respect to the aperture, and it is not affected by the unevenness of the film feeding speed, and the accurate magnetic data and the screen by the LED are displayed. It becomes possible to write size information.

Next explained is a film feeding device for a camera as a fourth embodiment of the invention. The film feeding device of the camera as the fourth embodiment is equivalent to the structure of the first embodiment, and the description of the structure is omitted.

FIG. 25 is a timing chart when the film is loaded and the first frame F1 is fed to the position facing the aperture in the film feeding apparatus of the fourth embodiment. The feeding to the shooting frame F1 is the same as that in the flowchart of FIG. 6 described above.

First, when the cartridge 2 (film 1) is attached to the camera and it is detected that the rear lid is closed, film feeding is started (steps SS1 and S in FIG. 6).
2). Here, when the film feeding is started, as shown in FIG. 2, the leader portion A of the film is provided with two sets of perforations each having four holes. Therefore, after eight perforations are detected, Although the method of shifting to the one-frame winding processing shown in the first to third embodiments is generally considered, chattering B may occur in the perforation detection signal at the tip of the film 1 as shown in FIG. There is a nature. Here, if chattering occurs, the feeding may stop before the first shooting frame F1, and the first shooting frame F1 cannot be accurately fed to the position facing the aperture.

In order to solve such a problem, in this embodiment, as shown in FIGS. 6 and 25, after the film driven roller detection signal is detected by a predetermined number of pulses, the one frame winding control is performed. By the front and back, shooting frame F
It is possible to feed 1 to the position facing the aperture.

Here, in FIG. 25, the film driven roller detection signal generated until eight perforations are detected is a predetermined pulse, but the predetermined pulse may be set to be slightly larger than this, or the perflation may be set. The predetermined number of pulses may be set regardless of the above. Further, after shifting to the one-frame winding process, it is the same as in the first and second embodiments, and the description thereof will be omitted.

FIG. 27 shows a modification of this embodiment, and FIG. 28 shows its configuration. This film feeding device has a disk 40 with a bar code, a bar code detecting section 41, a bar code detecting section 41, and a bar code detecting section which are provided so as to rotate integrally with the spool shaft 3 in the cartridge in the structure shown in FIG. The circuit 42 and the circuit 42 are added.

In this structure, after the film feeding is started, the bar coded disc 40 is rotated a predetermined number of times, and then the one frame winding process is started. The same effects as those of the above-described first to fourth embodiments can be obtained. Further, a time measuring unit for measuring the time after the feeding of the film 1 is started may be provided, and the perforation may be detected after waiting a predetermined time after the feeding is started.

Next explained is a film feeding device for a camera as a fifth embodiment according to the invention. FIG. 29 shows the film shape near the final frame of the film and the perforation detection signal.

As shown in FIG. 29A, only the last frame has the first perforation 5 and the second perforation 6.
And the third perforation 43 is provided behind the first perforation 5, and three perforations are provided on one shooting frame. Final shooting frame F36
When the exposure is finished, one frame winding is started according to the flowchart of FIG. 8, and a timing chart at that time is shown in FIG.

First, when the film feeding is started and the perforation is detected within the predetermined pulse number in the film driven roller rotation detection signal, the perforation is determined to be the third perforation. By this determination, the photographed frame is determined to be the last frame, and the frame is stored.

At that time, while recording the magnetic data and the screen size data, the feeding is performed until the second perforation of the photographing frame F36 is detected. When the second perforation (falling signal) is detected, deceleration control is performed to stop the film feeding. By thus determining the final frame to be photographed, the temporary tension state at the end of the film, which has conventionally occurred during winding, disappears, and the film does not stretch or break. When the film is temporarily pulled in this way, the current consumption of the motor also temporarily increases, and in the past, power was consumed unnecessarily, but in the present embodiment, useless power consumption can be reduced. .

The timing chart of FIG. 31 shows a modification of the fifth embodiment. This modified example is equivalent to the configuration shown in FIG. 28, and detects how many rotations the barcode disc 40 has made by the barcode detection signal after the film feeding is started. When the perforation is detected within the predetermined number of rotations of the barcode disc 40, the perforation is determined to be the third perforation, and this photographed frame is determined to be the final frame. The subsequent operation is the same as that of the fifth embodiment, and the effect is also the same, and therefore the description thereof is omitted.

In the modified example described above, the detection of the second and third perforations is not limited to either the fall or the rise, but in the present embodiment, either the fall or the rise may be detected, and the same method is used. The effect of is obtained.

Next, FIG. 32 shows a structural example as a modified example of the driven roller in the present invention. This driven roller
The driven roller main body 51, the encoder 53, and the photo interrupter 54 are provided. By detecting the rotation of the encoder 53 by the photo interrupter 54, the driven roller 51
Is detected, and the same effect can be obtained.

Next, FIG. 33 shows the structure of a film feeding device for a camera as a sixth embodiment according to the present invention, which will be described. In the constituent members of this embodiment, the same members as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted. FIG. 34 shows a perspective view of the film feeding device of this camera.

In this film feeding device, a cartridge 2 for winding and loading the film 1 on a spool shaft 9, a winding shaft 11 for winding the film 1, and a pressure plate 16 attached to a rear lid (not shown) for pressing the film. , A perforation detection section 17 for detecting the perforation of the film 1, a perforation detection circuit 18, a motor control circuit 19 for driving a motor feed 12 connected to the winding shaft 11, and a C for controlling these.
It is configured by the PU 20.

The film feeding operation of this film feeding apparatus will be described with reference to the flowchart of FIG. 35 and the timing chart of FIG. First, film feeding is started (step S61), and when the falling edge of the second perforation is detected (step S6).
2) The deceleration control is started (step S63). When the first perforation of the next photographic frame is detected (step S64), stop control is performed (step S65), and the film feeding is stopped (step S66).

Therefore, according to the present embodiment, 1
The film 1 is detected by the two perforation detectors 16.
The feeding control can be performed, and the next shooting frame can be accurately stopped at a position facing the aperture.

As a modification of the sixth embodiment, FIG.
Is shown in the timing chart of. In the above-described sixth embodiment, the deceleration is started when the falling edge of the second perforation is detected, but in this modified example, the deceleration control start timing is performed in synchronization with the detection of the rising edge of the second perforation. It is a thing. This modification has the same effects as the sixth embodiment.

Next explained is a film feeding device for a camera as a seventh embodiment according to the invention. The configuration of this embodiment is the same as that of the first embodiment described above, and only the characteristic portion will be described.

FIG. 38 is a flow chart for explaining the feeding operation of the seventh embodiment, and FIG. 39 is its timing chart. In this film feeding device, film feeding is started (step S71), and the film driven roller signal is counted accordingly (step S72). When the trailing edge of the second perforation of the photographed frame exposed by the movement of the film 1 is detected (step S73), it is determined whether or not the film driven roller signal has reached the predetermined pulse number n ₁ times (step S74). . If the predetermined number of pulses n ₁ has been reached in this determination (YES), deceleration control is started (step S
75). After the deceleration control is started, the film driven roller signal is counted, and it is determined whether or not the film driven roller signal has reached a predetermined pulse number n ₂ (step S76). If the predetermined number of pulses n ₂ is reached (Y
ES) and stop film feeding (step S7)
7).

Therefore, in the present embodiment, it becomes possible to stop the next shooting frame with respect to the aperture with high position accuracy. Next, the timing charts of FIGS.
A modified example of the seventh embodiment will be shown.

In the modification shown in FIG. 40, after exposure, the film is frame-fed, the rising edge of the second perforation of the exposed photographic frame is detected, and then the film driven roller signal is counted to determine the predetermined pulse number n ₁ When it reaches ′, the deceleration control is started, and then the predetermined number of pulses n
_This is an example of stopping the film feeding at ₂ '.

In the modification shown in FIG. 41, the film is advanced by one frame after exposure, and when the trailing edge of the first perforation of the next frame to be photographed is detected, counting of the film driven roller signal is started, Number of pulses n
_This is an example in which the deceleration control is started when reaching ₁ ″, the film driven roller signal is newly counted, and the film feeding is stopped when the predetermined pulse number n ₂ ″ is reached.

These modifications have the same effects as those of the seventh embodiment. Next explained is a film feeding device for a camera as an eighth embodiment according to the invention. FIG.
The film feeding of the eighth embodiment will be described with reference to the flowchart of FIG. 2 and the timing chart of FIG.

First, after exposure, film feeding is started (step S81), and the film driven roller signal is counted (step S82). Then, when the falling edge of the second perforation of the exposed frame is detected (step S83), the film driven roller signal is counted from the time when the edge is detected, and it is determined whether or not the predetermined pulse number n has been reached. Yes (step S84). When the predetermined number of pulses n is reached in this determination (YES), deceleration control of film feeding is started (step S85). When the rising edge of the first perforation of the next frame to be photographed is detected (step S86), the film feeding control is stopped (step S87). Therefore, according to the present embodiment, the next shooting frame can be stopped with high position accuracy with respect to the aperture.

The timing charts of FIGS. 44 and 45 show a modification of the eighth embodiment described above. In the above-described eighth embodiment, in step S83 of FIG.
Although the film driven roller signal is counted from the detection of the falling edge of the perforation, in the modification shown in FIG. 44, the film driven roller signal is detected from the detection of the rising edge of the second perforation and the speed is reduced when the predetermined pulse number n'is reached. This is an example of starting the control.

Similarly, in the eighth embodiment, the film driven roller signal is counted with reference to the detection of the falling edge of the second perforation of the photographed frame which has been photographed. However, in the modification shown in FIG. In this example, the trailing edge of the first perforation is detected, the film driven roller signal is counted, and the deceleration control is started when the predetermined number n ″ is reached.

These modifications have the same effects as those of the above-described eighth embodiment. In the modification, the detection of the first perforation is based on the rising detection, but the film driven roller signal may be counted based on the falling detection.

Next explained is a film feeding device for a camera as a ninth embodiment of the invention. The film feeding of the ninth embodiment will be described with reference to the flowchart of FIG. 46 and the timing chart of FIG. 47.

First, after the exposure is finished, the film feeding is started (step S91), and the counting of the film driven roller signal is started (step S92). When the film driven roller signal reaches the predetermined pulse number n ₄ times from the start of the film feeding (step S93), the deceleration control of the film feeding is started (step S94).

When the rising edge of the first perforation of the next frame to be photographed is detected (step S95), the film feeding is stopped (step S9).
6). Therefore, according to this embodiment, it is possible to stop the next shooting frame with respect to the aperture with high position accuracy.

Next explained is a film feeding device for a camera as a tenth embodiment of the invention. This first
The film feeding device of the 0th embodiment has the same structure as that of the 1st embodiment, and automatically feeds the first frame to the position facing the aperture when the film is loaded.

The film feeding operation will be described with reference to the flow chart shown in FIG. Further, FIG. 49 is a diagram showing a shape near the leading end of the film according to the present embodiment. First, the camera is loaded with a cartridge 62 for storing the film 61 shown in FIG. 49 in a roll, and the rear lid is closed. After that, when it is detected that the lid is closed (step S101), film feeding is started (step S1).
02).

When the perforation of the leading end portion of the film 61 is detected by the film feeding (step S103), the count value of the film driven pulse till then is reset (cleared) (step S10).
4) The film driven pulse is counted from the time of detecting the perforation of the leading end to the time of detecting the next perforation (step S105).

When the perforation is detected (step S106), it is determined whether or not the number of film driven pulses counted up to that time is equal to or more than a predetermined value (step S107). If the film driven pulse number is less than the predetermined value in this determination (NO), the process returns to step S104. However, if the number of film driven pulses is more than a predetermined value (YE
S), the detected perforation is determined to be perforation P0b, and one frame winding is performed as shown in the above-described embodiment (step S108).

That is, the predetermined pulse number is set so as to correspond to the position where the perforation A of the set of four holes at the leading end is passed, and the driven pulse detected at the time of loading the film is compared with the predetermined pulse number to drive the driven pulse. Is equal to or more than the predetermined number of pulses, it can be determined that the perforation A having a set of four holes at the tip has already passed. After obtaining the judgment, the first frame of the film is detected.

Therefore, according to the present embodiment, the first photographed frame is accurately supplied to the position facing the aperture without misjudging the perforation A provided at the leading end of the film as the start position of the photographed frame. Can be sent.

Next explained is a film feeding device for a camera as an eleventh embodiment of the invention. The film feeding operation will be described with reference to the flowchart shown in FIG. FIG. 51 is a diagram showing the shape near the final frame of the film according to this example.

First, after photographing, film feeding of photographed frames is started (step S111). When perforation is detected (step S112), the film driven pulse number CT is cleared (reset) (step S112). (S113), counting of the film driven pulse number CT is started (step S114).

When the perforation is detected (step S115), the film driven pulse CT counted up to that time and a predetermined value a (a: film driven pulse generated between the first perforation and the second perforation in each photographing frame). Number-α) (step S116), and if CT ≧ a, then (YE
S), it is determined that the frame is a normal shooting frame, the film feeding is stopped, and the one frame winding control is ended (step S11).
9).

However, in step S116, CT <a
In the case of (NO), the film driven pulse number CT
, It is determined whether or not a> CT ≧ b (step S11
7). Here, a is the predetermined value, and b is the film driven pulse number-α generated between the second perforation and the third perforation in the final frame.

In the judgment of step S117, a> CT
When it is determined that ≧ b is not satisfied (NO), the process returns to step S113, and when it is determined that a> CT ≧ b is satisfied (YES), the captured frame is determined to be the final frame. , The last frame is stored (step S1
18), the film feeding is stopped, and the one frame winding control is ended (step S119).

Next explained is a film feeding device for a camera as a twelfth embodiment of the invention. The film feeding operation will be described with reference to the flowchart shown in FIG. FIG. 53A is a diagram showing a shape near the final frame of the film according to this example.

First, after photographing, film feeding of photographed frames is started (step S120), and counting of film driven pulses is started (step S12).
1). Then, when perforation is detected (step S123), deceleration control is started (step S1).
26). Next, it is determined whether or not the film driven pulse is equal to or more than the predetermined value B (step S127), and when the film driven pulse is less than B (NO), the step is performed until the film driven pulse becomes B or more. Return to S127,
Continue deceleration control. When the film driven pulse is B or more in step S127 (YES), the deceleration control is ended (step S128), the film feeding is stopped, and the one frame winding control is ended (step S12).
9).

However, when the perforation is not detected in the step S123, it is judged whether or not the film driven pulse is generated by the predetermined value A or more (step S1).
24) If it is less than the predetermined value A, the process returns to step S123, and if it is more than the predetermined value A, it is stored as a film end (step S125), the film feeding is stopped, and the single frame winding control is ended (step S125). Step S129). Here, the predetermined value A is a value obtained by adding several pulses or several tens of pulses to the number of film driven pulses required to wind up one frame. As described above, if the perforation is not detected even when the film driven pulse is generated by one frame + α during the film feeding, the last frame of the film is detected by determining that frame as the last frame. be able to. In addition, as a modified example, the above-mentioned 12th
Instead of detecting the rotation of the film driven roller in the embodiment, after detecting the rotation of the bar code disc to start the film feeding, if the perforation is not detected by the time the bar code disc rotates a predetermined number of times, it is determined to be the film end. Alternatively, the same effect as that of the above-described twelfth embodiment can be obtained. Further, the timing of deceleration start and film feed stop is merely an example, and deceleration start and film feed stop may be performed at the timings described in the above-described first to eleventh embodiments.

Further, in the present embodiment, the film feeding is stopped on the basis of the rising detection of the first perforation, but the film feeding may be stopped on the basis of the falling detection of the first perforation.

Regarding the deceleration control in the film feeding device of the camera of each embodiment according to the present invention described above,
Conventionally, a method of reducing the motor drive voltage to decelerate, a method of reading the pulse width and decelerating the motor drive by open short brake, forward rotation and reverse rotation according to the pulse width,
A method of driving the motor by duty to reduce the speed may be used.

Next, a thirteenth embodiment of the present invention will be described. In the thirteenth embodiment, a pulse signal is generated in accordance with the movement of the film, the number of pulse signals is counted, and by the perforation detected until the count number of the pulse signal reaches a predetermined number N, a frame ( The last frame) is detected and the feeding operation is stopped.

The film applied to this embodiment is a film which is conventionally used and has two perforations for each photographed frame as shown in FIG. 55 and no perforation after the last frame. Is. This film 1 is wound and stored in a cartridge 2 in a roll shape, and in the case of a 36-shot film, shooting frames 3 of F1, ..., F35, F36 are provided, respectively. 1 on each of the front and end sides
There are two perforations each.

Of the two perforations provided on the photographing frame 3, the perforation provided on the leading end side of the film is the first perforation, and the perforation provided on the trailing end side is the second perforation. In addition, before the first perforation of the first shooting frame (on the leading end side), as shown in FIG.
A perforation of 0b is provided.

The thirteenth embodiment can be realized by the film feeding apparatus having the structure shown in FIG. 1 described above, and the description of the constituent members here will be omitted. The pulse signal generated based on the movement of the film 1 has a pulse waveform as shown in FIG. 56B generated by the film driven roller 13 shown in FIG.

A film feeding operation by the film feeding apparatus having the above-described structure will be described. First, FIG.
The release sequence of the camera shown in the flowchart of FIG. The reference numerals of the constituent members refer to FIGS. 1 and 4.

First, when an unillustrated 1st release switch is pressed (step S131), distance measurement and photometry are performed by a distance measurement and photometry device (not shown) (step S13).
2, S133). When the second release switch is further pressed (step S134), the taking lens 22 is driven based on the values obtained by the distance measurement and photometry (step S134).
135) and exposure is performed (step S136).

Upon completion of such photographing, the photographing lens 22 is reset (step S137), and one photographing frame is wound up in preparation for the next photographing (step S138). At the time of this winding, the film driven roller 13 is rotated, and the rotation detector 14 and the film driven roller rotation detection circuit 15 cause the film driven roller 13 to rotate as shown in FIG.
A pulse signal corresponding to the movement amount of the film 1 as shown in (b) is generated.

Further, FIGS. 56 to 59 are examples of time charts showing the operation waveforms of the respective parts of the control device in winding the photographing frame in the release sequence shown in FIG. 61, and each figure (a) is a perforation detection waveform. Indicates
FIG. 7B shows a film driven roller rotation detection waveform,
The figure (c) shows the film feeding speed, and the figure (d) shows the feeding motor drive voltage.

Regarding the operation of starting and stopping the winding of one frame after the exposure in the release sequence of the camera described above, the film is exposed to the frame F1 shown in FIG. 55 and is wound to the next frame F2. The setting of the photographing standby state will be used as an example and will be described with reference to the flowchart shown in FIG.

First, after the exposure is completed, the film feeding is started (step S141), and the counting of the film driven roller signal composed of the pulse signal as shown in FIG. 56 (b) is started (step S142).

Then, until the second perforation of the photographing frame F1 is detected, that is, 1 shown in FIG.
The detection operation is repeated until the th fall signal S1 comes (step S143). Then, after detecting the second perforation, it is determined whether or not the next first perforation of the photographing frame F2 has been detected, that is, whether the second falling signal S2 shown in FIG. 56 (a) has been detected (step S144). If the second trailing edge signal S2 is detected (YES), the film feeding deceleration control is immediately started (step S147).

However, when the second trailing edge signal is not detected as shown in FIG. 57 (NO), it is determined whether the pulse signal generated based on the rotation speed of the film driven roller has reached the predetermined number N _A. (Step S145). Step S144 until the pulse signal reaches a predetermined number N _A
And step S145 are repeated. Then, when the predetermined number N _A is reached (YES), it is determined that the film has ended (step S148), and the deceleration control of the film feeding in step S147 is started.

As the deceleration control method, as described in each of the above-described embodiments, a method of lowering the motor drive voltage to decelerate, a pulse width is read, and the motor drive is opened or short brake according to the width. There are a method of decelerating by rotating in the forward direction and the reverse direction, and a method of driving the motor by duty to decelerate.

58 and 59 are modified examples in which the predetermined number N _A is changed. Among these deceleration controls, for example,
FIGS. 60 (a) and 60 (b) are timing charts of the motor drive voltage and the film feeding speed in the method of reducing the motor drive voltage to decelerate, and FIGS. 60 (c) and 60 (d) show the pulse width. 3 is a timing chart of a motor drive voltage and a film feeding speed in a method of performing deceleration by means of a method, and FIGS. 6 (e) and 6 (f) are motor drive voltage and film feeding speed in a method of decelerating the motor by duty driving. 2 is a timing chart of. Although FIG. 17 shows a method of controlling the reading of the pulse width, any of the deceleration control methods described above may be used.

As described above, the first perforation of the next shooting frame F2 is detected and the next shooting frame F2 is stopped at the shooting position. Next, step S138 in FIG.
A case will be described in which the image pickup of the final frame F36 is finished and the film is wound in the case of winding one frame.

First, after the exposure is completed, the film feeding for the winding is started, the counting of the film driven roller signal is started, and the second perforation P36b of the final frame F36 is detected (steps S141 to S1).
43).

And in the film shown in FIG. 55,
No perforations after the second perforation P36b of the final frame F36 are provided. Even if the perforation detection operation (step S144) is performed, the next first perforation is not detected, and the fill driven roller signal reaches the predetermined number N _A (step S14).
5). When the predetermined number N _A is reached (YES), it is determined that the film has ended (step S146), deceleration control is performed, and film feeding is stopped (step S147).

Here, the predetermined number N _A is set to be larger than the count number of the film driven roller signal for the length from the first perforation to the second perforation of each frame, and the second perforation of the last frame. After detection, set to a value that is less than the count when the film has no blank space, and stop before the film is stretched at the film end. .

At this time, in the release sequence of the camera shown in FIG. 61, if it is not the film end, the process returns to step S131 to prepare for the next photographing, and if it is the film end, the rewind is performed (step S14).
0).

As described above, the photographed frames are rolled up one by one for each photographing, and it becomes possible to detect the final frame in the one frame winding after the photographing of the final frame, and the film is fed even at the film end. Therefore, it is possible to prevent the film from being pulled and being damaged, thereby damaging the film or the feeding system mechanism.

Next, FIG. 63 shows a modification of the thirteenth embodiment described above. First, after the exposure is finished, the film feeding for the winding is started, the counting of the pulse signal generated by the rotation of the film driven roller is started, and the second perforation of the next shooting frame is detected (steps S151 to S151). S153).

If this second perforation is detected, that is, the falling signal S1 shown in FIG. 56 (a).
If the count is detected, the count number of the film driven roller signal is reset (step S154), and then the count of the film driven roller signal is restarted (step S15).
5).

Then, the first perforation of the next frame to be photographed is detected (step S156), and if the first perforation is detected (YES), deceleration control is performed to stop the film feeding (step S159). However, if it is not detected and the count number of the film driven roller signal reaches the predetermined number N _B (step S157), it is determined that the previous frame is the last frame (step S1).
58), the flow shifts to step S159, deceleration control is performed, and the film feeding is stopped.

Here, the predetermined number N _B is the interval between the first perforation of the photographic frame and the second perforation of the photographic frame immediately preceding it, that is, the length of the shorter interval of the two perforations. Is greater than the number of film driven roller signals generated while the film is moving
In addition, it is set to a value smaller than the count number of the film driven roller signal generated during the movement of the film having the length of one frame.

As described above, in this modification, the first
The same effect as the third embodiment can be obtained. Next explained is a film feeding device for a camera as a 14th embodiment according to the invention. The structure of the fourteenth embodiment is the same as that of FIG. 1, and FIG. 17 shows the shooting standby state thereof, and the description of the structure is omitted. In the present embodiment, a magnetic data recording function and a screen size information recording function by an LED are added to the above-described first embodiment.

Next, with reference to the flow chart shown in FIG. 64, the operation for winding up one frame and detecting the last frame in the fourteenth embodiment will be described. First, after the exposure is finished, the winding film feeding is started and the counting of the film driven roller signal is started (steps S161, S).
162). Next, it is determined whether or not a predetermined timing of magnetic recording start is reached (step S16).
3). For the timing of the start of magnetic recording, refer to "Open Technical Report 94-19662" (Invention Society of Japan).
Since various methods such as publication) have been disclosed, description thereof will be omitted here. The predetermined amount PA described in the open technical report No. 94-19662 may be stored in a nonvolatile memory such as an EEPROM as a value peculiar to the camera in consideration of variations at the time of production.

Next, magnetic recording is started (step S16).
4). As for the magnetic recording method, any magnetic recording method such as the method disclosed in Japanese Patent Laid-Open No. 165030/1993 may be used. Similarly, JP-A-6
It is also disclosed in Japanese Patent Publication No. 265998. As an example, when magnetic recording is performed using a PPM signal, magnetic recording may be performed by changing the bit location depending on the amount of information to be recorded. Further, as shown in FIG. 68, T ₀ , T
Parameters such as ₁ and T ₂ that determine bit locations may be stored in a non-volatile memory such as an EEPROM according to the amount of information, and magnetic recording may be performed according to the amount of information based on the parameters. Good. When magnetic recording is performed by the method disclosed in Japanese Patent Laid-Open No. 5-165090, the driven roller signal may be divided by a number according to the amount of information. Further, a number corresponding to the amount of information may be stored in the non-volatile memory and read out and used when necessary.

Next, it is judged whether or not it is a predetermined timing for ending the magnetic recording (step S165). Here, there are various methods for the timing of ending the magnetic recording, such as the method disclosed in Japanese Laid-Open Publication No. 94-19662, but any method may be used.

In this determination, if it is the timing to end the magnetic recording (YES), the magnetic recording is ended (step S1).
66). Then, it is determined whether or not the second perforation is detected, that is, the first falling signal is detected (step S167). When the trailing edge signal is detected (YES), it is determined whether or not the first perforation of the next frame to be photographed, that is, the second trailing edge signal is detected (step S168).

If the second trailing edge signal is detected before the count number of the pulse signal by the film driven roller reaches a predetermined number N _A (YES), it is determined that this photographed frame is not the final frame, and deceleration is performed. Control is performed to stop film feeding (step S171). However, if the second trailing edge signal is not detected (NO) and the count number by the film driven roller reaches the predetermined number N _A before that (step S169), the shooting frame is determined to be the last frame, The film end is determined (step S17).
0), the process proceeds to step S171, the deceleration control is performed, and the film feeding is stopped.

After that, the operation is the same as that of the thirteenth embodiment, and the description thereof will be omitted. As described above, the same effect as that of the thirteenth embodiment can be obtained. Next, a modification of the above-described fourteenth embodiment will be shown and described in the flowchart of FIG.
Here, steps S181 to S187 are steps S161 to S16 of the fourteenth embodiment described above.
After the exposure is completed, the film feeding for winding the film is started and the counting of the film driven roller signal is started. Then, the timing of starting the magnetic recording is determined, and if it is, the magnetic recording is started. Further, the timing for ending the magnetic recording is determined, and if it is the timing, the magnetic recording is ended.

Then, the subsequent steps S188 to S193 are the same as steps S154 to S1 of FIG.
Similar to 59, the second perforation is detected, and if detected, the count number of the pulse signal by the film driven roller is reset, and then the count of the pulse signal is restarted. Then, the first perforation of the next frame to be photographed is detected, and if detected, deceleration control is performed to stop the film feeding. However, it is not detected, and the count number of the film driven roller signal is the predetermined number N.
_When it reaches _B , it is determined that the last frame is the last frame, the deceleration control is performed, and the film feeding is stopped.

With this modification, the same effect as that of the modification of the thirteenth embodiment can be obtained. Next, a fifteenth embodiment according to the present invention will be described.

In the thirteenth and fourteenth embodiments described above, FIG.
Although the perforation detection unit 17 is provided on the winding shaft 11 side as shown in FIG. 5, this embodiment is an example in which the perforation detection unit 17 is provided on the cartridge 2 side.

Referring to the flow chart shown in FIG. 66,
The film feeding operation in the fifteenth embodiment will be described. First, film feeding is started (step S20).
1) The counting of the film driven roller signal is started (step S202). Next, it is determined whether or not the first perforation of the next shooting frame is detected, that is, the first falling signal is detected (step S203). If the first falling signal is detected (YES), it is determined whether or not the second perforation of the next shooting frame is detected, that is, the second falling signal is detected (step S204). If the second trailing edge signal is detected (YES), deceleration control is performed and film feeding is stopped (step S207).

However, in step S203, the first trailing edge signal is not detected (NO), and before that, the count number of the pulse signal by the film driven roller is a predetermined number N _C.
(Step S205), the predetermined number N is detected.
If the number reaches _C (YES), it is determined that the filmed frame is the last frame and the film end (step S206), and the process proceeds to step S207 to perform deceleration control and film feeding. Stop.

Here, the predetermined number N _C is set to, for example, a number larger than the number counted by the film driven roller generated when the film moves by the shorter perforation interval P35b and P36a in FIG.

The deceleration control and the subsequent processing effects are the same as in the thirteenth embodiment. Next, a modification of the above-described fifteenth embodiment will be shown and described in the flowchart of FIG. In the flowchart of FIG. 67, steps S211 to S215 are steps S161 to S1 in the above-described fourteenth embodiment shown in FIG.
Equivalent to 66. Further, steps S217 to S230 are the same as steps S203 to S207 of the fifteenth embodiment shown in FIG. 66. The description here is omitted.

In this modification, the same effects as those of the thirteenth and fourteenth embodiments can be obtained. Further, in the thirteenth to fifteenth embodiments, the example in which the control is performed by using the film driven roller signal has been shown, but instead of the film driven roller, an encoder for detecting motor rotation is provided on the shaft of the motor. Even if a motor rotation signal is generated and control is performed using the motor rotation signal, the same effect can be obtained.

According to the above embodiment of the present invention, the following constitution can be obtained. (1) Film feeding means for feeding a film, perforation detection means for detecting perforation provided on the film, film driven roller rotating according to the movement of the film, and film detecting rotation of the film driven roller. A driven roller rotation detecting means, and a feed control means for starting deceleration control when perforation is detected by the perforation detecting means, and stopping when the film driven roller rotation detecting means detects a predetermined rotation and the rotation of the film driven roller. A film feeding control device for a camera, which is provided. (2) Film feeding means for feeding a film, perforation detection means for detecting perforation provided on the film, film driven roller rotating according to the movement of the film, and film detecting rotation of the film driven roller. When the predetermined rotation is detected by the driven roller rotation detection means and the film driven roller rotation detection means, the deceleration control is started when the rotation of the film driven roller is detected, and the film driven roller is started from the time when the perforation is detected by the perforation detection means. A film feeding control device for a camera, comprising: a feeding control means for stopping the rotation of the film when a predetermined rotation is detected.

(3) In the film feeding control device according to (1) or (2), a magnetic data writing means is provided,
A film feeding control device for a camera, wherein magnetic data is written in synchronization with a rotation detection signal detected by the film driven roller rotation detecting means.

(4) In the film feeding control device of (3), the screen size information writing means is provided, and the screen size information is synchronized with the rotation detection signal detected by the film driven roller rotation detecting means. A film feeding control device for a camera, characterized in that the writing is performed.

(5) A film feeding means for feeding a film, a perforation detecting means for detecting perforation provided on the film, a film driven roller which rotates according to the movement of the film, and a rotation of the film driven roller. A film idle feed of a camera having a film driven roller rotation detecting means for detecting, and detecting the perforation after the film driven roller rotation detecting means detects a predetermined rotation of the film driven roller. Control device.

(6) A film feeding means for feeding a film, a perforation detecting means for detecting perforation provided on the film, a film driven roller rotating according to the movement of the film, and a rotation of the film driven roller. A camera having a film driven roller rotation detecting means for detecting and a bar code detecting means, wherein the perforation is detected after the bar code detecting means detects the rotation of the bar code disk a predetermined number of times. Film feed control device.

(7) In the above (1), (2) and (3), the perforation is detected by the perforation detecting means before the rotation of the film driven roller is detected a predetermined number of times by the film driven roller rotation detecting means. The last film frame detection device of the camera, which determines that the last frame has been captured.

(8) In (6), when the perforation is detected by the perforation detecting means before the bar code detecting means detects the rotation of the bar code disc a predetermined number of times, it is determined that the frame is the last frame to be photographed. A film final photographed frame detection device for a camera characterized by:

(9) A film feeding means for feeding a film and a perforation detection means for detecting the perforation provided on the film are provided. When the perforation is detected by the perforation detection means, deceleration control is started. A film feed control device for a camera, characterized in that it is stopped when the next perforation is detected.

(10) The film feeding means for feeding the film, the perforation detection means for detecting the perforation provided on the film, and the time measuring means for measuring the time from the start of the film feeding are provided. A film feed control device for a camera, wherein a perforation is detected after waiting a predetermined time.

(11) A film feeding means for feeding a film, a perforation detecting means for detecting a perforation provided on the film, a film driven roller which rotates according to the movement of the film, and a rotation of the film driven roller. It has a film driven roller rotation detecting means for detecting, and after the perforation is detected by the perforation detecting means, when the rotation of the film driven roller is detected by the film driven roller rotation detecting means, deceleration control is started. Then, after that, when the rotation of the film driven roller is detected as a predetermined rotation by the film driven roller rotation detecting means, it is stopped.

(12) A film feeding means for feeding a film, a perforation detecting means for detecting perforation provided on the film, a film driven roller which rotates according to the movement of the film, and a rotation of the film driven roller. When the rotation of the film driven roller is detected by the film driven roller rotation detection means after the perforation is detected by the perforation detection means, the deceleration control is started. A film feeding control device for a camera, wherein when the next perforation is detected by the perforation detecting means, it is stopped.

(13) A film feeding means for feeding a film, a perforation detection means for detecting a perforation provided on the film, a film driven roller which rotates according to the movement of the film, and a rotation of the film driven roller. It has a film driven roller rotation detecting means for detecting, and decelerates when the film driven roller rotation detecting means detects a predetermined rotation of the film driven roller after the film feeding means starts feeding the film. A film feeding control device for a camera, which starts control and stops when the perforation is detected by the perforation detection means.

(14) A film feeding means for feeding a film, a perforation detecting means for detecting perforation provided on the film, a film driven roller which rotates according to the movement of the film, and a rotation of the film driven roller. It has a film driven roller rotation detecting means for detecting, and from the start of the feeding of the film by the film feeding means until the predetermined rotation of the film driven roller is detected by the film driven roller rotation detecting means. A final frame detection device for a camera, characterized in that when the perforation is not detected by the perforation detection means, the final frame is determined.

(15) The film feed means for feeding the film, the perforation detection means for detecting the perforations provided on the film, and the bar code detection means for reading the bar code data are provided. When the perforation is not detected by the perforation detecting means from the start of the feeding of the film by the feeding means to the predetermined rotation of the bar code disc detected by the bar code detecting means, it is determined as the last frame. A final frame detection device for a camera, characterized by making a determination.

(16) In a camera capable of using a film having a characteristic perforation, a feeding means for winding the film by a motor, a first detecting means for detecting the perforation of the film and outputting a pulse, and a pressure contact with the film. Second detection means for detecting the rotation of the driven roller and outputting a pulse, and during the film winding operation, in response to the output of the first detection means, the deceleration feed of the feeding means is performed. Start sending, the second
A film feeding apparatus for a camera, characterized in that the movement of the film is stopped in response to the output of the detecting means.

(17) The film feeding device for a camera according to (16), wherein the characteristic perforation has two perforations per exposure area for one frame.

(18) Feeding means for feeding the film by the motor, first detecting means for detecting the perforation of the film, and second detecting means for detecting the movement of the film by the driven roller pressed against the film. A film feeding apparatus for a camera, comprising at least a third detecting means for detecting the rotation of a spool shaft of a cartridge and a timer means for counting a predetermined time from the start of energization of the motor, and at least the timer means, and After decelerating and feeding is started in response to one of the third detecting means,
A film feeding device for a camera, characterized in that the movement of the film is stopped in response to the detecting means or the second detecting means.

(19) A film feeding means for feeding a film, a perforation detecting means for detecting perforation provided on the film, a film driven roller which rotates with the movement of the film, and a film driven roller. A roller rotation detecting means for detecting rotation, and the perforation is detected by the perforation detecting means after the film feeding is started and before the film driven roller rotation detecting means detects a predetermined number of rotations of the film driven roller. A film feeding device characterized in that when the number of times is not detected, it is judged as the last frame of the film.

(20) Film feeding means for feeding the film, perforation detection means for detecting the perforation provided on the film, a film driven roller which rotates with the movement of the film, and a film driven roller. A roller rotation detecting means for detecting rotation, and after the perforation is detected by the perforation detecting means after the film feeding is started, a predetermined number of rotations of the film driven roller are detected by the film driven roller rotation detecting means. A film feeding apparatus, characterized in that when the perforation is not detected by the perforation detection means before the above, the final frame of the film is determined.

(21) A film feeding means for feeding a film, a perforation detecting means for detecting perforation provided on the film, a film driven roller which rotates with the movement of the film, and a film driven roller. A roller rotation detecting means for detecting rotation, and the perforation is detected by the perforation detecting means after the film feeding is started and before the film driven roller rotation detecting means detects a predetermined number of rotations of the film driven roller. A film feeding device characterized in that it is judged as the last frame of the film when it is not performed.

(22) The above-mentioned (19), (20), wherein a magnetic recording means for performing magnetic recording is provided in a recording area provided on the film, and the magnetic recording is performed on the film while the film is being fed. ), Or the film feeding device according to (21).

(23) The film according to the above (22), wherein the start and stop timings of the magnetic recording by the magnetic recording means, or the start or stop timings are stored in the non-volatile storage means. Feeding device.

[0159]

As described above in detail, according to the present invention, 1
A film feeding device for a camera that can stop film feeding by stopping the filmed film fed by two perforation detectors with high positional accuracy with respect to the aperture and detecting the last frame without loading the film Can be provided.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration example of a film feeding device of a camera as a first embodiment according to the present invention.

FIG. 2 is a diagram showing a structure of a film used in Examples of the present invention.

FIG. 3 is a diagram showing a configuration in the vicinity of a shooting frame of the film shown in FIG.

FIG. 4 is a perspective view schematically showing the inside of a camera in which the film feeding device shown in FIG. 1 is in a shooting standby state.

FIG. 5 is a diagram showing a specific configuration example of a film driven roller.

FIG. 6 is a flowchart showing a schematic release sequence of the camera of the first embodiment.

7 is a time chart showing operation waveforms of respective parts of the control device during one frame winding in the release sequence shown in FIG.

FIG. 8 is a flowchart for explaining the operation of starting and stopping the winding of one frame.

FIG. 9 is a timing chart for explaining a method of controlling deceleration of film feeding used in the present embodiment.

FIG. 10 is a timing chart for explaining a modification of the first embodiment.

FIG. 11 is a timing chart for explaining a modification of the first embodiment.

FIG. 12 is a timing chart for explaining the film feeding device of the camera of the second embodiment according to the present invention.

FIG. 13 is a flow chart for explaining the film feeding operation of the film feeding device of the camera of the second embodiment.

FIG. 14 is a timing chart for explaining a modification of the second embodiment.

FIG. 15 is a timing chart for explaining a modification of the second embodiment.

FIG. 16 is a diagram showing a configuration example of a film feeding device for a camera of a third embodiment according to the present invention.

FIG. 17 is a perspective view showing a shooting standby state in the third embodiment.

FIG. 18 is a diagram for explaining one-frame winding and magnetic data writing of the film feeding device in the third embodiment.

FIG. 19 is an example of a timing chart for explaining one-frame winding and magnetic data writing of the film feeding apparatus as the third embodiment.

FIG. 20 is an example of a timing chart for explaining one-frame winding and magnetic data writing of the film feeding apparatus as the third embodiment.

FIG. 21 is an example of a timing chart for explaining one-frame winding and magnetic data writing of the film feeding apparatus as the third embodiment.

FIG. 22 is an example of a timing chart for explaining one-frame winding and magnetic data writing of the film feeding apparatus as the third embodiment.

FIG. 23 is an example of a timing chart for explaining one-frame winding and magnetic data writing of the film feeding apparatus as the third embodiment.

FIG. 24 is a flow chart for explaining one-frame winding and magnetic data writing of the film feeding apparatus as the third embodiment.

FIG. 25 is a timing chart for explaining one-frame winding and magnetic data writing of the film feeding apparatus as the fourth embodiment of the present invention.

FIG. 26 is a diagram showing a configuration example of a film used in a fourth example.

FIG. 27 is a timing chart for explaining a modification of the fourth embodiment.

FIG. 28 is a diagram showing a configuration of a modified example of the fourth exemplary embodiment.

FIG. 29 is a diagram showing a configuration example of a vicinity of a minimum frame of a film used in a film feeding device of a camera as a fifth embodiment according to the present invention.

FIG. 30 is a timing chart for explaining winding up of the last frame of the film feeding apparatus of the fifth embodiment according to the present invention.

FIG. 31 is a timing chart for explaining a modification of the fifth embodiment.

FIG. 32 is a diagram showing a configuration example of a modified example of a driven roller in the film feeding apparatus of the present invention.

FIG. 33 is a diagram showing the structure of a film feeding device for a camera as a sixth embodiment according to the present invention.

FIG. 34 is a perspective view of the film feeding device of the camera of the sixth embodiment.

FIG. 35 is a flow chart for explaining the film feeding operation of the film feeding apparatus of the sixth embodiment.

FIG. 36 is a timing chart for explaining the film feeding operation of the film feeding apparatus in the sixth embodiment.

FIG. 37 is a timing chart for explaining a modification of the sixth embodiment.

FIG. 38 is a flow chart for explaining the film feeding operation of the film feeding apparatus of the seventh embodiment.

FIG. 39 is a timing chart for explaining the feeding operation of the film feeding device of the seventh embodiment.

FIG. 40 is a timing chart for explaining a modification of the seventh embodiment.

FIG. 41 is a timing chart for explaining a modification of the seventh embodiment.

FIG. 42 is a flow chart for explaining a film feeding device for a camera as an eighth embodiment according to the present invention.

FIG. 43 is a timing chart for explaining the feeding operation of the film feeding device of the eighth embodiment.

FIG. 44 is a timing chart for explaining a modification of the eighth embodiment.

FIG. 45 is a timing chart for explaining a modification of the eighth embodiment.

FIG. 46 is a flow chart for explaining the film feeding device of the camera as the ninth embodiment according to the present invention.

FIG. 47 is a timing chart for explaining the feeding operation of the film feeding device of the ninth embodiment.

FIG. 48 is a flow chart for explaining the film feeding device of the camera as the tenth embodiment according to the present invention.

FIG. 49 is a diagram showing a structure near a leading edge of a film used in a tenth example.

FIG. 50 is a flow chart for explaining a film feeding device for a camera as an eleventh embodiment according to the present invention.

FIG. 51 is a diagram showing the structure near the end of the film used in Example 10.

FIG. 52 is a diagram showing a configuration of a film feeding device of a conventional camera.

FIG. 53 (a) is a diagram showing the shape of the vicinity of the final frame of the film according to the twelfth embodiment of the present invention, and FIG. 53 (b) is a timing chart for explaining the twelfth embodiment. is there.

FIG. 54 is a flow chart for explaining the film feeding device of the camera as the 12th embodiment of the present invention.

FIG. 55 is a diagram showing an example of a film provided with perforations used in Example 13;

FIG. 56 is a timing chart for explaining the feeding operation of the film feeding device of the thirteenth embodiment.

FIG. 57 is a time chart showing an example of operation waveforms of respective parts of the control device during film winding in the thirteenth embodiment.

FIG. 58 is a time chart showing an example of operation waveforms of respective parts of the control device during film winding in the thirteenth embodiment.

FIG. 59 is a time chart showing an example of operation waveforms of respective parts of the control device during film winding in the thirteenth embodiment.

FIG. 60 is a timing chart for explaining a method of reducing the feeding speed.

FIG. 61 is a flowchart for explaining a release sequence of the camera.

FIG. 62 is a flowchart for explaining a winding operation for one frame after exposure in the release sequence of FIG. 61.

FIG. 63 is a flowchart showing a modified example of the thirteenth embodiment.

FIG. 64 is a flow chart for explaining the film feeding device of the camera as the 14th embodiment.

FIG. 65 is a flowchart showing a modified example of the fourteenth embodiment.

FIG. 66 is a flow chart for explaining the film feeding device of the camera as the fifteenth embodiment.

FIG. 67 is a flowchart showing a modification of the fifteenth embodiment.

[Fig. 68] Fig. 68 is a diagram illustrating an example of a bit location.

[Explanation of symbols]

1 ... Film, 2 ... Patrone, 3 ... Shooting frame, 4 ... Track, 5 ... First perforation, 6 ... Second perforation, 7 ... First magnetic track, 8 ... Second magnetic track, 9 ... Spool shaft, 10 ... R fork, 11 ... Winding shaft, 12 ... Feed motor, 13 ... Film driven roller,
14 ... Rotation detector (sensor), 15 ... Film driven roller rotation detection circuit, 16 ... Pressure plate, 17 ... Perforation detection unit (sensor), 18 ... Perforation detection circuit, 19 ... Motor control circuit, 20 ... CPU, 21 ... Drive mechanism.

Claims (3)

[Claims] 1. A film feeding apparatus driven by a motor, which can use a film having two perforations per one frame shooting area, outputs a pulse signal corresponding to the movement of the perforations accompanying the film feeding. A perforation detection means, a rotatable roller member in contact with the film piece, and a movement amount detection means for outputting a pulse signal corresponding to the movement amount of the film piece due to feeding; an output of the perforation detection means; An output of the moving amount detecting means is inputted and counting means for counting the number of respective signal pulses is included. Based on the output of the counting means, the film is fed in response to the signal from the perforation detecting means during film winding. Decelerate the speed and respond to the signal from the movement amount detection means Control for stopping the film winding and stopping the film winding when a predetermined number or more of signals are generated from the movement amount detecting means before the signal from the perforation detecting means is generated while the rum feeding is stopped. A film feeding apparatus comprising: 2. A film feeding device driven by a motor, which can use a film having two perforations for each shooting area of a frame, and outputs a pulse signal corresponding to movement of the perforations accompanying film feeding. A perforation detection means, a rotatable roller member in contact with the film piece, and a movement amount detection means for outputting a pulse signal corresponding to the movement amount of the film piece due to feeding; an output of the perforation detection means; The output of the moving amount detecting means is input, and counting means for counting the number of respective signal pulses is included. Based on the output of the counting means, a predetermined number of pulse signals are input from the moving amount detecting means during film winding. At this time, when the signal from the perforation detecting means is not generated, A film feeding apparatus, comprising: a control unit that determines that the film has ended and stops film winding. 3. The magnetic recording means for performing magnetic recording in a recording area provided on the film, wherein the magnetic recording on the film is performed during winding of the film. Film feeder.