JPH03246539A - Cartridge film and camera for loading this film - Google Patents

Abstract

PURPOSE:To prevent the pressurized contact force of a press roller from adversely affecting recording media on a film by deviating and positioning the press roller for preventing the floating of the film taken up on a take-up spool from the parts formed with the recording media for information recording and reproducing of the film. CONSTITUTION:Perforations 12 for easy loading of the front end of the film, pawl parts 21 projectingly provided on the outer peripheral part of the take-up spool for engaging the perforations and the press roller 22 for preventing the floating of the film 1 which is engaged with these pawl parts and is taken up on the take-up spool 20 are deviated and positioned from the recording medium parts 11 for information recording and reproducing formed on one side edge in the transverse direction of the film 1 taken up on the take-up spool 20. The pressurized contact force by the press roller is prevented from adversely affecting the recording media on the film in this way and the adequate and sure magnetic information recording and reproducing functions are obtd. The easy loading function to the film take-up spool is exhibited as well.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a roll-shaped silver-lead film (so-called cartridge film) stored in a cartridge and a still camera loaded with this film, and particularly relates to film sensitivity,
A track-shaped magnetic recording medium made of a magnetic material is formed on the film surface to magnetically record film information such as the number of shots taken and photographing information such as exposure conditions during shooting, and a perforation eye for easy loading during automatic film loading. A magnetic head for information recording or reproduction (hereinafter simply referred to as information recording or reproduction) for magnetically recording recorded information on the recording medium or reproducing and reading the recorded information is provided. The present invention relates to a still camera equipped with a film feeding mechanism for loading.

[Conventional technology]

For example, in cine cameras such as 8-ugly, it is common practice to magnetically record ambient sounds and the like when taking pictures. In such cine cameras, due to the device configuration, such as the fact that it is a moving image and the mechanical arrangement conditions of the image capturing section and the audio recording section that correspond to the shooting optical system, the image capturing part on the film and the image are The corresponding recording portion is located apart in the film running direction. Therefore, with a cine camera, it is possible to consider image capture on the film screen and magnetic recording completely separately, and the arrangement of each part is relatively simple, preventing mutual interference between the two mechanisms. No consideration is required at all, and stable image shooting and sound recording on film can be performed.

By the way, it is conceivable to apply such a method of magnetically recording information on film to still cameras and the like. In this case, the information to be recorded includes, for example, photographic information for each photographed frame, such as exposure at the time of photographing, aperture condition, date and time of photographing, trimming information when printing the photographed screen, and information on the photographed frame □. If this information is recorded on the film surface near each photographic frame at the time of shooting, this information can be read at a processing laboratory, etc., and the exposure conditions etc. at the time of printing can be set according to the conditions at the time of shooting. This allows you to deal with different exposure conditions for each frame, improve the quality of printed photos, or take pictures with the assumption that a part of the screen will be enlarged in advance, so that the focal length of the camera's photographic lens can be adjusted. Even if limited, it becomes possible to obtain print photographs that look like those using a telephoto lens, and it becomes possible to assist the photographing function.

Furthermore, the information recorded on the film mentioned above includes film information that spans the entire film, such as film sensitivity, number of shots that can be taken, latitude, and number of shots that have been taken. Recording magnetically on the camera will be convenient when performing shooting operations and feeding processes that match the film conditions on the camera side.

Therefore, in this type of still camera, a recording medium made of a magnetic material is provided in a track shape as a magnetic information recording section on the film surface, and information is recorded by a magnetic head or the like that magnetically records information on the recording medium. It is conceivable to install a playback device inside the camera, for example, by using a structure as shown in U.S. Pat. Cameras have been proposed for some time.

[Problem to be solved by the invention]

However, the above-mentioned magnetic information recording medium may be provided to replace the perforations of the 135-type Hatrone film commonly used in still cameras, or magnetic information recording media may be provided within the camera in response to this.
A simple configuration that only includes a magnetic head for reproduction cannot provide the required information recording and reproducing functions.

Such problems include, for example, the relationship between the magnetic information recording medium formed on the film surface and the automatic loading mechanism for easy loading of the film on the camera side.

In other words, conventional film used for boat fishing has perforations formed on both sides of the film, and the method of loading this using easy loading is to feed the film from the cartridge and place the perforations on one side on the take-up spool. There are some methods in which the film is wound by hooking it onto a claw, or the outer periphery of the take-up spool is made of rubber or the like, and the film is wound using the frictional force. However, the latter method requires an extra rubber part compared to the former claw part, and unlike the claw part, it does not have the high reliability of being able to reliably wind the film once the perforation engages with the claw part. The problem was that I couldn't do it.

Another method is to provide a hole at the leading end of the film and engage it with a protrusion on the spool, but there is a problem in that it is troublesome to align the hole on the film and the protrusion on the spool.

For this reason, the present applicant formed a plurality of perforations on the film side, provided a plurality of claws on the take-up spool side to engage with the perforations, and by engaging any of them, the film spool We are considering increasing the reliability of winding the film around the spool, but in this case we need a film holding roller that will prevent the film from lifting up from the claws of the spool and will not damage the film. but,
When this pressing force from the presser roller acts on the magnetic information recording medium provided on the film surface as described above,
A new problem arises in that the magnetically recorded information changes, which must be taken into consideration.

In addition, when recording the above-mentioned magnetic information on a recording medium provided for each frame, or when reproducing and reading film information from a recording medium, it is necessary to accurately detect the film feeding position. It is desirable to take these points into consideration and develop films and cameras that can record and reproduce magnetic information. Furthermore, in order to meet such requests, we must take into consideration the possibility that the power may turn off and the information loaded into the camera may be lost while film is being loaded into the camera and the camera is taking pictures. This is a countermeasure for cases where the film has to be taken out of the camera in the middle of shooting and then reloaded to continue shooting, and countermeasures against this kind of problem are also required.

[Means to solve the problem]

In order to meet such demands, the cartridge film according to the present invention has a recording medium for recording and reproducing information formed along the running direction on one side edge in the width direction of the film, and a claw formed on the outer periphery of the take-up spool. A plurality of easy loading perforations that engage with the recording medium are formed at positions offset from the formation positions in the film width direction of the recording medium at the leading end of the film.

The camera according to the present invention includes a take-up spool for winding the leading end of the film sent out from the cartridge, a presser roller that is attached to the take-up spool and presses the film against the outer periphery of the take-up spool, and It is equipped with a magnetic head for information recording and reproduction that is pressed against the recording medium formed on one side edge in the width direction of the film in the middle of the film running path, and the recording medium forming portion of the film is wound on the outer periphery of the take-up spool. A claw part for engaging the perforation for easy loading is provided protrudingly at a position shifted in the film width direction from the position where the film is attached, and a presser roller that engages with the claw part to prevent the film being wound up from lifting is attached to the film recording medium. It is arranged offset from the forming part.

In addition, the cartridge film according to the present invention has perforations for detecting the film running position formed on the other side of the film, opposite to the formation position in the running direction of the recording medium for information recording and reproduction on one side of the film width direction. It is something.

1. The camera according to the present invention has a magnetic head for recording and reproducing information that is pressed against the recording medium on one side of the film in the middle of the travel path of the film from the cartridge to the take-up spool, and is located at a position opposite in the width direction of the film. A film position detecting means for detecting a perforation for detecting a film running position on the other side edge of the film is provided.

[Effect]

According to the present invention, there is a perforation for easy loading at the leading end of the film, a claw protruding from the outer periphery of the take-up spool for securing the perforation, and a raised part of the film that is engaged with the claw and taken up on the take-up spool. The presser roller is positioned offset from the recording medium forming area for information recording and playback of the film that is wound onto the chain take-up spool, so that the pressing force from the presser roller has an adverse effect on the recording medium on the film. There are no such problems, and the magnetic information recording and reproducing functions and the easy loading function of the film onto the take-up spool can be demonstrated.

Further, according to the present invention, a perforation for detecting the film running position is formed on one side edge of the film in the width direction, facing the recording medium for information recording and reproduction, and is formed on the other side edge side, and a camera side for detecting the perforation. By means of the film position detecting means, the running position of the film can be detected appropriately and reliably, and the information recording and reproducing functions of the magnetic head can be performed.

〔Example〕

1 to 5 show an embodiment of the cartridge film according to the present invention and a camera loaded with the cartridge film.

In these figures, the reference numeral l denotes a film that is wound around a spool shaft (not shown) and stored in the cartridge 2. On the surface of the film 2, as is clear from FIG. A well-known photographing schedule screen 3, 3. which is a recording medium for optically recording information by photographing is displayed from a position a predetermined distance away from the portion 1a. ... is formed.

According to the present invention, in the cartridge film 1, an information recording/reproducing recording medium 10, 11 is formed in a track shape along the traveling direction on one side edge in the width direction, and a take-up spool 20 on the camera side is formed. A plurality of easy loading perforations 12 that engage with claws 21 (see FIG. 2) formed on the outer periphery are shifted from the formation position in the film width direction of the recording medium 10.11 at the film leading end la. In other words, it is formed at a position slightly shifted toward the center from the same level position on the film l of the recording media to and it at one side edge. Here, one recording medium 10 is for recording film information, which is provided at a position on the leading end side of the film l, which is offset from the photographing screen 3, and records information regarding the entire film such as the film sensitivity and the number of shots, and the other recording medium Reference numeral 11 denotes a device for recording photographic information, which is provided corresponding to each photographic screen 3 and records photographic information for each frame. Furthermore, the easy loading perforations 12 have a length X approximately equal to the distance between each perforation from the film leading end 1a.
It is best to form it in a separate location.

Further, according to the cartridge film 1 according to the present invention, the recording medium 1 for information recording and reproduction on one edge side in the width direction of the film
A perforation 13,1 for detecting the film running position is provided on the other edge side opposite to the forming position in the running direction of 0.11.
4 is formed, so that the formation location of each recording medium 10911 can be detected during film feeding.

Here, 13 is a recording medium 10 which is a film information recording section.
A perforation for detecting the film running position, which is made up of a plurality of perforations 13a corresponding to This is to determine that the information from the recording medium 10 on which film information is recorded can be reproduced and read by the magnetic head 30. At the time of detection, the information of the film 1 is determined so that the information can be reproduced by the magnetic head 30. The formation position in the traveling direction, etc. are set. Further, 14 is a film running perforation (1 is a detection perforation formed one by one for each frame corresponding to the recording medium 11 which is a photographing information recording section, and there may be a plurality of perforations, as described above). The number and size of the perforations must be such that they can be distinguished from the perforations 13 corresponding to the medium 1O.Furthermore, the number 15 in FIG. This is a perforation for detecting the film running position, and can also be used as a signal means to stop the film feeding system and smoothly perform reversal during auto bit turn and prewind. By forming the first position detection perforation 13
It is also possible to provide the same function as that of the detection part, but of course, it is necessary to set the number and size of the holes so that they are different from other detection parts.

It should be noted here that in conventional films, perforations with the same pitch and size are formed on both sides, and it is practically difficult to use these for detecting the film running position. be. especially,
Considering that information is recorded and played back on the recording medium 10, 11, it is possible, for example, to add new information to frames that have already been taken, or to lose information loaded into the camera due to a power outage. When the film is moved back by one frame, or when the film is advanced to a predetermined frame position at once when the film is perforated, if the detection target is continuous perforations, there may be a misreading at the start position of the film advance. It is easy for misalignment to occur, and it is often impossible to carry out the specified film feeding operation.Furthermore, if the power is cut off when the film is halfway taken, and the loaded information is lost, the information may be lost. This causes a problem that the writing position cannot be determined. Furthermore, if a recording medium such as a film [f] is simply placed on the leading edge of the film without any confirmation means, the film must be rewound once and brought to a predetermined position in order to read it. However, it is necessary to stop the film when the film is in the cartridge, but it is difficult to judge whether to do so, and the film returns too far and winds up in the cartridge, causing troublesome operations such as loading the film again and reading from the recording medium at the leading end of the cartridge. There is also a problem in that it requires a lot of movement and lacks promptness, so it is necessary to provide a clear discrimination means as described above. In other words, with the easy-to-determine film running position detection section as described above, the film can be properly and reliably fed to the required position and stopped, and information can be recorded and reproduced in the required state. , the advantages will be obvious.

On the other hand, the camera according to the present invention is shown in FIGS. 2 to 4 (a).
), as is clear from (b), there is a take-up spool 2o that winds up the film l sent out from the cartridge 2 from the tip end 1a, and a presser roller 22 that is attached to the take-up spool 2o and that presses the film l against its outer periphery. Then, the recording medium to, which is formed at one side edge in the width direction of the film in the middle of the film running path near the aperture 51 portion from the cartridge 2# to the take-up spool 2o, is selectively pressed into contact with the recording medium to, 11, to magnetically transfer the information. Information recording/reproducing magnetic head 30 capable of writing (recording), reading (reproducing), or both
film 1 on the take-up spool 2o
A claw portion 21 for engaging the perforations for easy loading is provided protrudingly at a position shifted toward the center in the film width direction from the position where the recording medium 10.11 forming portion is wound, and the claw portion 21 is engaged with the claw portion for winding. The presser roller 22 that prevents the film l from lifting up is arranged offset from the recording medium 10.11 forming portion of the film l, so that no pressing force is directly applied to the recording medium 10.11 wound around the spool 20. Here, the claw part 21 that hooks the above-mentioned easy loading perforation 12 and the presser roller 22 that presses the film l against this part are positioned closer to the recording medium 10.11 than the widthwise center of the film 1. The magnetic head 30 that is pressed against the magnetic head 30 is provided to prevent the film 1 from coming off from the claw part 21 of the spool 20, and to apply the pressure contact force of the magnetic head 30 to the film l pulled by the claw part 21. This is to prevent problems such as unnecessary twisting force caused by a moment acting as a load that causes the entire film to tilt, and to ensure stable film feeding. The presser roller 22 is pressed against the outer circumferential portion of the spool 20 by a spring means (not shown), and the portion corresponding to the claw portion 21 is formed to escape from contact with the small diameter portion 22a.

Furthermore, in the camera according to the present invention, the above-mentioned film l
A perforation for detecting the film running position on the other side edge of the film is located at a position opposite in the film width direction to the information recording/reproducing magnetic field 30 which is selectively pressed against the recording medium 10.11 on one side edge. A photo interrupter 3 is used as a film position detection means for detecting 713, 14.15.
1 is installed.

Here, I will briefly explain the configuration of the camera side.

25 in FIG. 2 indicates the take-up spool 20, the gear train 25a,
24. A film winding electric motor (Ml) which is rotationally driven by 23 and is used to pull out and run the film l from the cartridge 2; 28 is a drive gear having a fork portion 26a that meshes with the hub 2a at the end of the spool shaft of the cartridge 2; 2
An electric motor (M2
). In this embodiment, the cartridge 2 is exemplified as having a structure in which the film 1 is fed out and rewound one time by rotation of the spool shaft, but the present invention is not limited to this. isn't it.

Furthermore, in FIG. 2, 32 is a CPU to which the detection signal from the photointerrupter 31 described above is input via the photoelectric conversion circuit 34, and the perforations 13, 14.1
5 and determines the film feeding position, and in accordance with this, the motor drive circuit 33 drives the motors 25 and 2g.
(Ml.

M2), and also controls the magnetic head drive circuit 35 to move the magnetic head 30 forward and backward during magnetic recording and reproduction, and issues control commands to perform magnetic recording and reproduction.The CPU 32 also has a release button. Half-press switch SWI, release switch SW2. A film cartridge detection switch SW3, a back cover switch SW4, etc. are connected to perform well-known photographing operation control.

In addition, in Fig. 3 and Fig. 4 (a), (b), 51
52.52 is the film guide (outer rail) provided above and below the aperture that guides the photographed image from the lens system to the photographing screen 3, 53.53 is the film reference surface rail, and the above-mentioned magnetic herad 30 The photo interrupter 31 is above this part.

They are provided substantially opposite to each other at the bottom.

Here, the operation of the film feeding system in a camera with such a configuration will be briefly described. For example, during easy loading, as is clear from FIGS. 3 and 4(a), the film l is sequentially fed out by rotating the spool shaft in the feeding direction, passes through the film path in the aperture 51, It is sent to the take-up spool 20 side.

Then, while the film leading end 1a enters between the outer periphery of the spool 20 and the presser roller 22, the easy loading perforations 12 are caught and engaged with the claws 21, and as a result, the film 1 is rotated by the motor 25 (Ml). are sequentially wound onto the spool 20 side. At this time, the motor 28 (M2) and gear train that drive the part-row material side serve as a load when winding the film l, and when winding on the spool 20 side starts, a clutch mechanism (not shown) or the like is activated. It is preferable to configure the rotation transmission system to be separated.

The flowchart for such easy loading is shown in Figure 6, and this can be briefly explained as follows:
Upon detection of the back cover closing signal and cartridge presence shown in steps 101 and 102, the motor M2 is activated in step 103.
rotates, the film l is sent out from the cartridge 2, and the film passes through the photo interrupter 31 (step 104).
), it is possible to absorb the fact that the amount of rotation of motor M2 and the amount of film feeding are not constant, and to detect the amount of film l determined by the number of rotations of motor M2 or time from this point on.
Feed the film until it engages with the spool claw part 21 (
Once step 105) has been performed, step 106
Motor M2 is stopped at . In addition, at this time, motor M
The transmission system between 2 and the patrone spool shaft is also released. In this state, film winding is performed by motor Ml. Then, by winding onto the take-up spool 20, the first perforation 13 is detected by the phyto-interrupter 31, and data area detection (step 10) is performed.
8, 109), the magnetic helad 30 is advanced and pressed against the film surface in step 110, and the roll information (film information) on the recording medium to is reproduced in step 111, and the data is Loading completed (112
), and when the image area is detected and the presence of the perforation 14 is confirmed in steps 113 and 114, the motor M1 is stopped (115) and the easy loading is completed. Of course, step 10 with magnetic herad 30
The pressure contact state may be maintained from point 8 onwards so that the roll information can be read at any time.

In the film loading state described above, the normal photographing operation shown in FIG. 7 is performed as follows. That is, when SWl is turned on by pressing the release button halfway in step 201, distance measurement and light metering is performed (step 202), and SW2 is turned on by pressing the release button in step 203, and exposure operation (step 204). After step 2
When the shooting is completed as indicated by 05, steps 206-
As shown at 209, film feeding is started, and the magnetic head 30 records photographic data on the recording medium 11, detects the next perforation 14, and stops film feeding. Note that if a signal of a photographed perforation is detected in step 206 due to the start of film feeding, it is recommended to inhibit the winding end detection function until some time has elapsed after the start of film winding. If a plurality of tapes are provided for the photographing screen 3, it is preferable to complete the winding with the staple 209 after canting the film for a plurality of minutes, and stop the film feeding.

On the other hand, if the power is turned off in the middle of shooting a book of film l and the stored information is lost, or if the CPU 32 or the like breaks down, reinsert the battery as shown in step 301 in Figure 8. , when it is confirmed in steps 302 to 304 that the startup switch (half-press switch SWl, etc.) is on, the back cover is closed, and the cartridge is present, the camera feeds the film l in the direction to store it in the cartridge 2. To do this, as shown in steps 305 and 306, the motor M1 system is disconnected and the motor M2 side is rotated.

Then, it is preferable to continue rewinding while detecting the perforation, and when detecting the information area detection)<-foration 13, stop the motor M2 and disconnect the rotation transmission system (steps 307 to 310). At this time.

Since the dimension to the film leading end 1a is set longer than the distance to the spool claw part 21 of the camera, the film does not come off and easy loading is completed. In this state, steps 311 to 31
At step 4, the film 1 is pulled out from the cartridge 2 by the motor M1, and the magnetic head 30 is brought into pressure contact with the film surface to reproduce the roll information.After reading the data, step 7'315-317 detects the video perforation 1. The frame information is played back, it is determined whether the frame has been photographed or not, and a frame with no light leakage is searched for. When a frame with no light leakage is detected, step 31 is performed.
As shown in 8 to 322, even if the motor Ml is stopped, it will result in overfeeding, so the motor M2 side is rotated and returned by -segments, and then perforation detection is performed.
It is preferable to stop motor M2.

Here, in FIG. 8, when the rewinding operation is started in step 307, there is also a method of counting the amount of film rewind, reproducing the roll information, and then rewinding the film by the same amount. With such a configuration, there is no need to rewind by - frames in step 320.

Conversely, when rewinding the film l onto the cartridge 2, the transmission system from the motor 25 (Ml) on the spool 20 side is disconnected, and the rewinding motor 28 (M2
), the spool shaft can be rotated to unwind the film, and such winding and rewinding operations of the film 1 can be performed freely as necessary. The feeding operation of the film 1 and the driving control of the magnetic head 30 are appropriately determined based on the camera side state by the switches 5WI-3W4 mentioned above, the film running position based on the detection signal from the photointerrupter 31, etc. It is advisable to do this depending on the situation. Figure 4 (a) shows the initial state of easy loading, and Figure 4 (b) shows the film L being fed to the 10th position of the recording medium for film information. This shows the detection status at the time.

Here, FIG. 5 shows a conceptual diagram of a camera according to the present invention, in which a control means 40 (corresponding to the CPU 32) is provided with an image area detection means 43 using the photo interrupter 31.
By inputting the detection signal from the information area detection means 44, the film feeding means 42 and the information recording and reproducing means 41 are controlled, and the film feeding and information recording and reproducing operations by the magnetic helad 30 are performed. That will be easily understood.

According to the above-described configuration, the film leading end 1 a
perforation 12 for easy loading,
The chain take-up spool 20 is equipped with a claw 21 protruding from the outer periphery of the take-up spool 20 and a presser roller 22 that engages with the claw part 21 and prevents the film 1 being wound onto the take-up spool 20 from lifting up. Since the information recording and reproduction recording medium 10.11 of the film L to be wound up is positioned offset from the formation area, the pressing force of the presser roller 20 is directly applied to the recording medium 10°11 on the film L. This eliminates the risk of adverse effects such as changes in recorded information caused by the magnetic head 30, and allows the magnetic head 30 to perform its functions of recording and reproducing magnetic information and the function of easily loading the film l onto the take-up spool 20.

Furthermore, according to the present invention, perforations 13° 14 for detecting the film running position are formed on one side edge of the film 1 in the width direction, facing the recording medium 10 and 11 for recording and reproducing information, and formed on the other side edge side. .15 and a photo interrupter 3 which is a film position detection means on the camera side that detects this.
1, the running position of the film can be detected appropriately and reliably, and the information recording and reproducing functions of the magnetic head can be performed. In this case, the recording medium 10.
Position detection perforation 13, 1 on the opposite side to 11
4.15, there is no risk that the magnetic helad 30 that is pressed against the film surface will be damaged by the level difference in the perforations, and furthermore, the magnetic helad 30 that is pressed against the film surface is not in pressure contact at all times due to the detection of the running position. This has the advantage of preventing unnecessary wear of the head and further preventing loading errors due to the load on the head. Furthermore, the presence of such perforations 13, 14, 15 for position detection allows, for example, even in a camera that does not handle information, to perform photographing operations only in the area where the perforations 14 for detecting the film frame advance position are located. By configuring this, there is no risk of the problem of being unable to print due to extra photographing.

Note that the present invention is not limited to the structure of the embodiment described above, and the shape, structure, etc. of each part may be modified or changed as appropriate. For example, in the above-mentioned embodiment, the drive mechanism of the magnetic head 30 and its control operation are omitted, but the point is that the film 1 is pressed against the recording medium to, ti when necessary to perform magnetic recording and reproduction. Various configurations and control methods can be adopted. Furthermore, various modifications of the film feeding mechanism are conceivable, and can be freely selected according to the drive system of the cartridge I used. Of course, it goes without saying that the cartridge 2 is not limited to the embodiment described above.

In addition, in the embodiment described above, a recording medium 10 on which film information is recorded and a recording medium 11 on which photographing information is recorded.
The magnetic head 30L is selectively pressed against the recording medium to, tt to magnetically write (record) or read information.
An example is shown in which a device for information recording and reproduction that can perform (reproduction) or both is used. However, the present invention is not limited thereto, and may be a magnetic head 30 that can perform only one of these functions or a magnetic head 30 that can perform both functions.
, it is preferable to use it according to it.

Further, in the above-described embodiment, the perforation 13° 14.15 and the photointerrupter 31 capable of detecting the perforation were used for detecting the film running position, but the present invention is not limited to this, and any appropriate detection means may be used. , any configuration that can detect the required film running position may be adopted as appropriate.

〔Effect of the invention〕

As explained above, according to the cartridge film according to the present invention and the camera loaded with the same, there is provided a perforation for easy loading at the leading end of the film, a claw protruding from the outer periphery of the take-up spool for securing the perforation, and A presser roller that engages and prevents the film being wound onto the take-up spool from lifting up is shifted from the recording medium portion for information recording and reproduction formed on one side edge in the width direction of the film being wound onto the chain take-up spool. Therefore, despite the simple structure, there is no problem such as the pressing force of the presser roller having an adverse effect on the recording medium on the film, and it is possible to record magnetic information appropriately and reliably.
It has various excellent effects, such as not only the playback function but also the ability to easily load the film onto the take-up spool.

Further, according to the present invention, a perforage for detecting the film running position is formed on the other side facing the information recording and reproducing recording medium formed on one side edge in the width direction of the film. By using the film position detection means on the camera side, the running position of the film can be properly and reliably detected, and the information recording and reproducing functions of the magnetic head can be performed. It is also possible to perform controls such as pressing the film into contact with the film and retracting it when not needed.This reduces the load on the film feeding system and provides an appropriate film feeding condition.
In addition, various excellent effects such as minimizing the wear and tear of the magnetic head can be achieved.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a cartridge film according to the present invention, FIG. 2 is a schematic perspective view showing an embodiment of a camera in which this cartridge film is loaded, and FIGS. 3 and 4 (a) ), (b) is a rear view of the camera aperture section showing the relationship between the cartridge film and the take-up spool, and a diagram explaining the operation during easy loading and film position detection, and Figure 5 is a circuit block explaining the camera control system. Figures 6 to 8 are flowcharts for explaining camera operations during easy loading, normal shooting, and rereading recorded information.1...
Patrone film, 2... Patrone, 3...
- Shooting schedule screen, 10.11...Film information recording, playback recording medium, 11...shooting information recording, playback recording medium, 12...perforation for easy loading, 13 wheels...film Perforation for detecting the film running position in the information recording section, 14... Perforation for detecting the film running position in the photographing information recording section, 15... Perforation for detecting the film running position at the rear end of the film, 20... Take-up spool, 21...claw portion, 22...press roller, 25
...Electric motor for film winding, 28...Electric motor for film feeding and rewinding, 30...Magnetic head for information recording and reproduction, 31...Photo interrupter (film position detection) means), 40... control means, 41... information recording/reproducing means, 42... film feeding means, 43... video area detection means, 44...
...Information area detection means, 51...Aperture.

Claims (4)

[Claims] (1) In a roll film that is stored in a cartridge loaded on one side of the camera and taken up on a take-up spool on the other side of the camera, it is formed on one side edge in the width direction of the film along the film running direction. a recording medium for recording and reproducing information; and a plurality of easy loading perforations formed at the leading end of the film so as to engage with claws formed on the outer periphery of the take-up spool. . A cartridge film, characterized in that the easy loading perforations are formed at positions shifted from the formation positions of the recording medium in the film width direction. (2) A camera loaded with the cartridge film according to claim 1, comprising: a take-up spool for winding the leading end of the film fed from the cartridge loaded in the cartridge chamber of the camera; a presser roller that presses the spliced film against the outer periphery of the spool; and an information recorder that presses against the recording medium formed on one side edge in the width direction of the film in the middle of the film running path from the cartridge chamber to the take-up spool. , a reproducing magnetic head, and a perforation for easy loading at the leading end of the film at a position offset in the width direction of the film from a position where the recording medium-forming portion of the film is wound around the outer periphery of the take-up spool. The holding roller is provided with a protruding claw portion that engages with the claw portion, and the pressing roller that engages with the claw portion and prevents the film being wound up from being lifted is disposed offset from the portion of the film where the recording medium is formed. A camera featuring (3) In a roll film that is stored in a cartridge loaded on one side of the camera and taken up on a take-up spool on the other side of the camera, it is formed on one side edge in the width direction of the film along the film running direction. a recording medium for recording and reproducing information; and a perforation for detecting the film running position formed on the other side edge in the film width direction opposite to the formation position of the recording medium in the film running direction. A patrone film featuring. (4) A camera loaded with the cartridge film according to claim 3, wherein one side edge of the film is fed out from the cartridge loaded in the cartridge chamber of the camera and wound onto the take-up spool. a magnetic head for information recording and reproduction that is pressed against the recording medium; and a film position detection device that detects a perforation for detecting the film running position on the other side edge of the film, which is disposed at a position facing the magnetic head in the film width direction. A camera comprising: means.