JPH08292481A - Film loading mechanism for camera - Google Patents

Abstract

PURPOSE: To provide a film loading mechanism for a camera capable of outputting prescribed information on the first frame of a film with its absolute minimum feeding, without being affected by the position of the magnetic head of the camera and the direction of the feeding of the film at the time of photographing. CONSTITUTION: In film loading for the camera dealing with a magnetic film which is provided with a film feeding motor 2, the magnetic head 5, optical elements 3 and 4 and means for drive-controlling the film feeding motor 2 and the magnetic head 5 respectively, a control means which detects the quantity of the film 1 fed forward, when the optical elements 3 and 4 detect the initial slit 1<1> of the film 1, to feed it forward and backward and record initial information of the first frame and stops the film 1 after being fed forward by a specific quantity is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film loading mechanism for a magnetic film compatible camera, and more particularly to a camera adapted to record the information of the first frame when setting the first frame of the film. Of the film loading mechanism.

[0002]

2. Description of the Related Art Conventionally, in a 35 mm camera,
To set the position of the film in the loaded film cartridge to the first frame, all the films in the film cartridge are sent out at the time of initial loading of the film, and the last end side is set to the first frame, or the film is evenly spaced. It is general to feed the number of slits provided on the sprocket while controlling the count with a sprocket, and to set the portion relatively close to the tip side as the first frame. By the way, in recent years, for example, a camera having a recording means for recording various information at a predetermined portion of a film every time of photographing, a reading means for reading the recorded information, and a magnetically recording means for this recording means are available. Proposed. There are various proposals as to what kind of information and how to record in the one provided with such a recording means, and also depending on the method of setting the position on the first frame of the film as described above. Different methods are possible. Among them, the information recording of the first frame is important for confirming the initial information at the time of reading, and particularly when the information to be recorded also includes the positional information of the first frame, It is even more important in reading and detecting the position of the frame.

[0003]

However, depending on the arrangement of the photographing image frame and the recording means provided in the camera,
Even if the information of the first frame is to be recorded, it may not be possible to record it when the film of the first frame is fed. Further, if the arrangement of the recording means is limited to the one direction side so that the information of the first frame can be recorded, there is a space limitation with other camera parts and the like. Also, when using a camera that can shoot by bidirectional film feed,
Even if the information of the first frame could be recorded when shooting from one direction when setting the position of the first frame, the information of the first frame should be recorded if the film is not rewound after sending the film to the last frame when shooting from the other direction. I can't record.
Therefore, in view of the above problems, the present invention uses the minimum necessary film feed of the initial information of the first frame without being affected by the position of the recording unit on the camera and the film feed direction during shooting. An object is to provide a film loading mechanism for a recordable camera.

Another object of the present invention is to provide a film loading mechanism for a camera, which has a simple structure and can reduce the cost.

[0005]

To achieve the above object, a film loading mechanism of a camera according to the present invention comprises a film feeding means for feeding a film provided with a slit, and a magnetic recording provided on the film. A magnetic film-compatible type provided with magnetic recording means for recording information on a medium, slit detecting means for detecting slits in the film, drive control means for driving and controlling the film feeding means and the magnetic recording means, respectively. In the film loading mechanism of the camera, when the film is fed by the film feeding means in the forward direction and the slit detecting means detects a predetermined slit of the film, the film is moved from the position at the time of the detection. Detecting the feed amount in the forward direction and feeding the feed amount in the forward direction by the film feeding means, After the feeding is completed, the film feeding means feeds the film in a direction opposite to the feeding direction, and at the predetermined amount when feeding the film in the opposite direction, the magnetic recording means causes the magnetic recording means to start the first frame. It is characterized in that it is provided with a control means for recording information and, after the recording is completed, for feeding a predetermined amount of the film in the forward direction by the film feeding means and stopping it.

Further, the film loading mechanism of the camera according to the present invention is preferably a film feeding means for feeding a film provided with a slit, and a magnetic recording for recording information on a magnetic recording medium provided on the film. A film loading mechanism of a camera compatible with a magnetic film, comprising: a means for detecting a slit of the film; a slit detecting means for detecting a slit of the film; and a drive control means for driving and controlling the film feeding means and the magnetic recording means. The film feeding means corrects the film to a predetermined position between the position where the slit detecting means detects the predetermined slit of the first frame of the film and the position before the predetermined slit of the second frame. And the film is fed in the feeding direction by the film feeding means after the feeding is completed. The initial information of the first frame is recorded on the film by the magnetic recording unit at a predetermined amount when the film is fed in the reverse direction and the film is fed by the film feeding unit after the recording is completed. It is characterized in that it is provided with a control means for feeding a predetermined amount in the direction and stopping it.

Further, the film loading mechanism of the camera according to the present invention is preferably a film feeding means for feeding a film provided with a slit, and a magnetic recording for recording information on a magnetic recording medium provided on the film. Means, slit detecting means arranged downstream of the magnetic recording means in the forward direction of the film feeding and separated from the magnetic recording means within one frame length, and detecting the slit of the film; In a film loading mechanism of a camera compatible with a magnetic film, comprising a feeding means and a drive control means for driving and controlling the magnetic recording means, the slit feeding means detects the film by the film feeding means. The film is fed in the forward direction until the predetermined slit of the first frame is detected, and after the feeding is completed, the film is fed. The magnetic recording means records the initial information of the first frame on the film at a predetermined amount when the film is fed in the direction opposite to the feeding direction by the feeding means, and the film is fed in the opposite direction. After the recording is completed, the film feeding means is provided with a control means for feeding and stopping the film in a forward direction by a predetermined amount.

The film loading mechanism of the camera according to the present invention preferably further comprises magnetic reading means for reading the information recorded on the magnetic recording medium, and the information of the first frame is the position of the first frame of the film. Information is included, and the position of the first frame is detected by reading the position information of the first frame by the magnetic reading means.

Further, in the film loading mechanism of the camera according to the present invention, preferably, as the slit detecting means, a conducting contact piece arranged so as to be conducted by being induced by the slit is used. Is.

Further, the film loading mechanism of the camera according to the present invention is preferably characterized in that the conducting contact piece is provided with a pressure plate mechanism which can also serve as a pressure plate by a pressing action of pushing the film.

[0011]

The film is fed in the forward direction by the film feeding means. When a predetermined slit of the film is detected by the slit detecting means, the feed amount of the film in the forward direction from the position at the time of detection is detected by the arithmetic control, and the film feeding means further feeds the film. The quantity is fed in the forward direction. After the feeding is completed, the film is fed in the reverse direction by the film feeding means. The magnetic recording means records the initial information of the first frame at a predetermined amount when the film is fed in the reverse direction. After the recording is completed, the film feeding means stops the feeding by the feeding means when the film is fed by a predetermined amount in the forward direction. As a result, without being affected by the position where the magnetic recording means is provided or the direction of film feed at the time of shooting,
By winding the film at the initial loading of the film to a minimum, the predetermined information of the first frame can be secured, and the setting of the first frame is completed.

Further, if a conductive contact piece is used as the slit detecting means, the construction can be simplified and, moreover, it will be less susceptible to detection errors and the like due to temperature differences and the like.

[0013]

EXAMPLES Examples of the present invention will be specifically illustrated and described below. FIG. 1 is a partial perspective view showing an embodiment of a film loading mechanism of a camera according to the present invention, FIG. 2 is a block diagram of a control means in this embodiment, and FIG. 3 is a flow chart of a film loading operation control in this embodiment. Show. The film 1 has slits 1 ⁿ (n: 1, 2, 3
...) are provided at predetermined intervals corresponding to each frame of the film. The positional relationship between the slit 1 ⁿ and one frame of the film is controlled by calculation as described later. A magnetic medium (not shown) is formed on the film 1 at a position lower than the photographing surface so that information such as strobe ON / OFF, F number, and brightness can be recorded. In addition, film 1
In the initial state, all are stored in the film cartridge 1a in a wound state.

A film 1 is provided on a camera body (not shown).
As a means for feeding the sheet, a feed motor 2 capable of rotating in the forward and reverse directions
Are arranged so as to engage with the lower portion of the film cartridge 1a directly or through gears, and the film 1 is rotated in the forward direction to load the film cartridge 1a.
The film cartridge 1 is further fed in the winding direction (for example, the arrow A direction in FIG. 1) and rewound in the rewinding direction (for example, the arrow B direction in FIG. 1) by reverse rotation.
It is designed to be fed into a.

Further, as slit detecting means of the film, for example, optical elements 3 and 4 such as a photo interrupter, which sense transmission / blocking of light by the pair, are provided apart from the film 1 to be fed, It is arranged so that the presence or absence of the slit 1 ⁿ and the passage thereof can be detected when the film is fed. If the slit can be detected, an optical element such as a photo reflector and a reflecting plate may be provided with the film 1 separated from each other instead of the optical elements 3 and 4.

A magnetic head 5 is provided as a magnetic recording / reading means for recording / reading information on the film 1. The magnetic head 5 is a rotatable magnetic head arm unit 5.
b and a magnetic head portion 5a for recording / reading information on / from a magnetic medium formed on a film.
Is supported by the magnetic head arm portion 5b so that it can be brought into contact with and separated from the surface of the film. Further, the magnetic head arm portion 5b includes
A gear portion 5c is provided. A magnetic head drive motor 6 is provided as a means for driving the magnetic head 5. The magnetic head drive motor 6 is provided with a gear portion 6a so as to engage with the gear portion 5c of the magnetic head arm portion 5b, and the magnetic head drive motor 6 is rotated in a predetermined direction by a predetermined angle. Further, the magnetic head arm portion 5b is rotated by a predetermined amount in the arrow C direction or the D direction to bring the magnetic head 5 into contact with or separate from the film 1 surface. When recording and reading information, the magnetic head drive motor 6 can be moved in the direction of arrow C in FIG.

[0017] The optical elements 3 and 4 of Figure 1 is connected to the arithmetic and control unit 7, when the optical element 3 and 4 detects the initial slit 1 ¹ of the film 1, the arithmetic and control unit 7
Thus, the amount of film feeding, which will be described later, can be controlled by calculation (FIG. 2). Further, the film feeding motor 2 and the magnetic head drive motor 6 are connected to the arithmetic and control unit 7 via a drive circuit 8 and are driven and controlled by a signal from the arithmetic and control unit 7 ( (Fig. 2).

The film loading operation using the embodiment having such a structure will be described. First, when the power is turned on, the presence or absence of the camera set of the film cartridge 1a in the initial state is checked in step 22, and the film cartridge 1a is inserted. If not, a warning display such as blinking of a lamp is displayed in step 22a.
When the setting of the film cartridge 1a in the initial state to the camera is completed, the feeding motor 2 operates in the normal direction in step 23 to start the feeding of the film 1 from the film cartridge 1a. When the first slit 1 ¹ (initial slit 1 ¹ ) sent out from the film cartridge 1a is detected by the optical elements 3 and 4 in step 24, the arithmetic control unit 7 determines the slit detection position as a reference in step 25. The film feed amount is calculated, and in step 26, the slit 1 ² of the second frame is detected by, for example, the optical elements 3 and 4 while controlling the rotation speed of the motor and the energization time of the film 1 by the calculated predetermined amount. The feeding motor 2 is fed to the position before the feeding, and after the feeding is completed, the forward rotation operation of the feeding motor 2 is stopped in step 27 to stop feeding the film 1. During this operation, the magnetic head 5 is positioned in the direction of arrow D and is held at a position separated from the film 1 surface.

Next, at step 28, the magnetic head drive motor 6 operates in the normal direction to bring the magnetic head 5 into contact (press contact) with the surface of the film 1 via the magnetic head arm portion 5b to stop the normal operation. After the magnetic head 5 is brought into contact (press contact) with the surface of the film 1, in step 29, the feeding motor 2 is reversely operated at a predetermined speed to rewind the film by a predetermined amount. At the same time, in step 30, the magnetic head 5 records predetermined information including the initial position information of the first frame in a predetermined magnetic recording portion of the magnetic medium of the film 1. In steps 31 and 32, the completion check of the recording and the rewind check of a predetermined amount are performed. After the completion of the recording and the rewinding by a predetermined amount, the reverse rotation operation of the feeding motor 2 is stopped in step 33 to stop the rewinding of the film 1.

Next, in step 34, the feeding motor 2 is rotated in the forward direction to feed the film 1, and the magnetic head 5 reads the information recorded in the predetermined magnetic recording portion of the film 1 to obtain the initial position information. To search. Based on the reading of the initial position information by the magnetic head 5 in step 36, the forward rotation operation of the feeding motor 2 is stopped to stop the feeding of the film 1 in step 37, and the magnetic head drive motor 6 is reversely operated in step 38. At least, the magnetic head 5 is separated from the film 1 surface. Further, in step 39, the position information of the first frame of the film is stored by the arithmetic and control unit 7, and the frame feeding of the second and subsequent frames can be controlled by the energization time of the feeding motor 2, the number of rotations and the like.

As a result, the first frame is set at the position of the photographing frame while the information is recorded in the first frame of the film 1, and the initial loading of the film is completed. It is possible to shoot from the frame. The range of the first frame determined in this embodiment is shown as range 1-1 in FIG. In the case of adjusting the the position of the slit 1 ¹ and the start position of the above-mentioned magnetic recording, when the first frame position and rewinding of the film while controlling the rotational speed or the conduction time of the feed motor 2 film It may be adjusted by adjusting the feeding amount.

In setting the position of the first frame of the film in the film loading mechanism of the camera according to the present invention, the relative position of the slit detecting means and the magnetic recording / reading means in consideration of the arrangement position with respect to the photographing image frame is changed. Thus, the position of the first frame of the film and the feeding amount of the film can be arithmetically controlled. FIG. 4 shows a film 1
The winding direction of arrow A is the direction of arrow A, the rewinding direction is the direction of arrow B, the optical element 3 (4) is arranged at the frame upper right end position, and the magnetic head 5a is arranged at the frame lower right end position with respect to the frame 9 of the image frame. FIG. 8 is a partial side view showing a film feeding state in the embodiment of the film loading mechanism of the camera according to the present invention. In the embodiment of FIG. 4, the slit 1
¹ the film 1 upon detection the first frame relative to the frame 9 is assumed to be in the photographing position [Figure 4 (b)], feeding Okuryou in the arrow A direction of the slit 1 ¹ after detecting the film 1, 1
The length L of the frame in the longitudinal direction is subtracted by the recordable and readable width 1 of the magnetic head portion 5a in the longitudinal direction to obtain an amount L-1 (FIG. 4C). Further, the feeding amount of the film 1 in the direction of the arrow B for magnetic recording is L-1 [FIG.
(D)]. Also, the film initial position information is frame 9
On the other hand, recording may be started before the film 1 is located at the shooting position. Therefore, the feeding amount of the film 1 in the arrow A direction when the feeding in the arrow B direction is completed is zero.

In FIG. 5, the winding direction of the film 1 is the arrow A direction, the rewinding direction is the arrow B direction, the optical element 3 (4) is at the frame upper left end position with respect to the frame 9 of the photographing image frame, and the magnetic head portion 5a. FIG. 7 is a partial side view showing a film feeding state in the embodiment of the film loading mechanism of the camera according to the present invention, which is arranged at the lower right end of the frame. In the embodiment of FIG. 5, the slit 1 ¹ detected when the film 1 in the first frame to the frame 9 is assumed to be in the photographing position [Figure 5 (b)], arrow A of slits 1 ¹ after detecting the film 1 The feeding amount in the direction becomes L-1 [Fig.
(C)], and arrow B of film 1 for magnetic recording
The feeding amount in the direction is L-1 [Fig. 5 (d)]. Recording of the film initial position information may be started before the film 1 is located at the shooting position with respect to the frame 9. Therefore, the feeding amount of the film 1 in the arrow A direction when the feeding in the arrow B direction is completed is zero.

In FIG. 6, the winding direction of the film 1 is the arrow A direction, the rewinding direction is the arrow B direction, the optical element 3 (4) is at the upper right end position of the frame 9 of the photographic image frame, and the magnetic head portion 5a. FIG. 6 is a partial side view showing a film feeding state in the embodiment of the film loading mechanism of the camera according to the present invention, which is arranged at the lower left position of the frame. In the embodiment of FIG. 6, the slit 1 ¹ detected when the film 1 in the first frame to the frame 9 is assumed to be in the photographing position [6 (b)], arrow A of slits 1 ¹ after detecting the film 1 The feed amount in the direction becomes zero. Further, the feeding amount of the film 1 in the direction of arrow B for magnetic recording is 1
The length L of the top in the longitudinal direction is subtracted by the width 1 in the longitudinal direction of the magnetic head portion 5a to obtain an amount L-1 [FIG.
(C)]. Also, the film initial position information is frame 9
On the other hand, recording may be started before the film 1 is located at the shooting position. Therefore, the feeding amount of the film 1 in the arrow A direction when the feeding in the arrow B direction is completed is L-1 [FIG. 6 (d)].

In FIG. 7, the winding direction of the film 1 is the arrow A direction, the rewinding direction is the arrow B direction, the optical element 3 (4) is at the upper left end position of the frame 9 of the photographic image frame, and the magnetic head portion 5a. FIG. 6 is a partial side view showing a film feeding state in the embodiment of the film loading mechanism of the camera according to the present invention, which is arranged at the lower left position of the frame. In the embodiment of FIG. 7, the slit 1 ¹ detected when the film 1 in the first frame to the frame 9 is assumed to be in the photographing position [Figure 7 (b)], arrow A of the film 1 1 ¹ after detection slit The feed amount in the direction becomes zero. Further, the feeding amount of the film 1 in the direction of arrow B for magnetic recording is L
It becomes -l [FIG.7 (c)]. Recording of the film initial position information may be started before the film 1 is located at the shooting position with respect to the frame 9. Therefore, the feeding amount of the film 1 in the arrow A direction when the feeding in the arrow B direction is completed is L-1 [FIG. 7 (d)].

The case where the film 1 is at the photographing position with respect to the frame 9 when the slit ^{11 is} detected has been described above with reference to the embodiments shown in FIGS. 4 to 7. However, the film 1 is detected when the slit ^{11 is} detected. Even when the film 9 is not in the photographing position with respect to the frame 9, the position of the first frame of the film 1 and the feeding amount of the film 1 can be arithmetically controlled.
8 and 9 are the same as the embodiment shown in FIGS.
Film 1 1 ¹ upon detection slit is a partial side view showing a film feed state in the embodiment of a camera film loading mechanism according to the invention when in the position insufficient α the photographing position with respect to the frame 9. In the present embodiment, when the film 1 1 ¹ upon detection slit is in a position where insufficient α the photographing position with respect to the frame 9 includes a sheet Okuryou in the arrow A direction of the slit 1 ¹ after detecting the film 1,
The amount added each feed amount α to the direction of the arrow A slit 1 ¹ after detecting the film 1 in the embodiment above, respectively [FIG. 8 (c)], [FIG. 9 (d)]. In addition, the feeding amount of the film 1 in the reverse direction for magnetic recording and the feeding amount of the film 1 in the direction of arrow A after magnetic recording are the same as those in the embodiments of FIGS. 4 to 7, respectively. Is.

As a method of setting the film 1 after magnetic recording in the photographing position of the first frame in each of the embodiments shown in FIGS. 4 to 9, the feed amount of the film 1 in the direction of arrow A is calculated. It is also possible to perform the energization time or the rotation speed of the film feeding motor 2 by controlling the calculated feeding amount for the feeding amount, but the initial position information is recorded on the film 1 by the magnetic head 5. In addition, it is preferable to read the initial position information when setting the photographing position of the first frame of the film 1 because it is possible to prevent the positional deviation due to an error in film feeding. Further, the frame position of the film can be calculated and controlled by appropriately adjusting it according to the energization time or the rotation speed of the motor as described above. Also,
When the film winding direction is opposite, the feeding motor of the film loading mechanism of the camera of the present invention and the slit position counting control may be reversed.

As described above, according to the film loading mechanism of the camera of the present invention, as shown in the embodiments of FIGS. 4 to 9, the position of the magnetic recording means and the film winding direction are not affected. The magnetic information of the frame can be recorded.

In the film loading mechanism of the camera according to the present invention, an optical element is used as the film slit position detecting means in each of the above-mentioned embodiments. However, cost reduction, simplification of configuration, and stabilization of quality can be achieved. In order to
It is preferred to use other mechanical means.

Therefore, FIG. 10 to FIG. 12 show partial arrangements of the contact piece and the film in the embodiment in which a conducting contact piece is used for the slit detecting means as the film loading mechanism of the camera according to the present invention. In FIG. 11, the conductive contact pieces 10 and 11 are arranged so that the film 1 is sandwiched between them, and at least one of them is a pressure plate mechanism such as a plate spring having a shape that pushes the film. When 1 ¹ is located between them, they contact each other and are energized to start detection of the file position and the film feed amount by the arithmetic unit. The rest of the configuration is the same as that of the embodiment using the optical element, and therefore its description is omitted.

[0031] With the camera of the film loading mechanism of the present embodiment, the initial slit 1 ¹ as shown in FIG. 11
When the sheet passes between the conductive contact pieces 10 and 11, the slit is detected by the conductive state, and the detection of the film feed amount by the arithmetic and control unit 7 is started. Incidentally, the initial slit 1 ¹ as shown in FIG. 12 becomes non-conductive in a state that has not passed through the contact piece portion. It should be noted that the other loading control is omitted since it is the same as that using the optical element. According to the present embodiment, it is possible to detect the slit of the film with a simple structure without using an optical element, so that it is possible to reduce the manufacturing cost, and due to a temperature difference or the like as compared with the optical element. Not easily affected.

The detection of the film feed amount in each of the above embodiments is performed on condition that the initial slit is detected by the slit detecting means, but the detection of a predetermined slit other than the initial slit may be performed on the above condition.

[0033]

As described above, according to the film loading mechanism of the camera of the present invention, it is not necessary to wind the film to the final frame for recording the predetermined information of the first frame.
Even if the battery runs out during shooting, the predetermined information for the first frame can be secured. Further, there is no influence on the arrangement position of the recording means on the camera or the film feeding direction at the time of photographing.

Further, if the conductive contact piece is used as the film detecting means, the structure can be simplified and the manufacturing cost can be reduced. Further, the quality of the product can be stabilized because it is hardly affected by the temperature difference and the like.

[Brief description of drawings]

FIG. 1 is a partial perspective view showing an embodiment of a film loading mechanism of a camera according to the present invention.

FIG. 2 is a block diagram of an embodiment of a film loading mechanism of a camera according to the present invention.

FIG. 3 is an operation control flowchart of an embodiment of a film loading mechanism of a camera according to the present invention.

FIG. 4 is a partial plan view showing a film feeding state of the embodiment of the film loading mechanism of the camera according to the present invention.

FIG. 5 is a partial plan view showing a film feeding state of the embodiment of the film loading mechanism of the camera according to the present invention.

FIG. 6 is a partial plan view showing a film feeding state in the embodiment of the film loading mechanism of the camera according to the present invention.

FIG. 7 is a partial plan view showing a film feeding state of the embodiment of the film loading mechanism of the camera according to the present invention.

FIG. 8 is a partial side view showing a film feeding state of the embodiment of the film loading mechanism of the camera according to the present invention when the film is at a position α short of the shooting position with respect to the frame when the slit is detected.

FIG. 9 is a partial side view showing the film feeding state of the embodiment of the film loading mechanism of the camera according to the present invention when the film is at a position where the filming position α is insufficient with respect to the frame when the slit is detected.

FIG. 10 is a partial plan view of an embodiment in which a conducting contact piece is used as a film position detecting means in the film loading mechanism of the camera according to the present invention.

FIG. 11 is a partially enlarged cross-sectional view showing a conductive state in an embodiment in which a conductive contact piece is used as the film position detecting means in the film loading mechanism of the camera according to the present invention.

FIG. 12 is a partially enlarged cross-sectional view showing a non-conducting state in an embodiment in which a conducting contact piece is used as the film position detecting means in the film loading mechanism of the camera according to the present invention.

[Explanation of symbols]

 1 Film 1a Film Cartridge 2 Feed Motor 3,4 Optical Element 5 Magnetic Head 5a Magnetic Head Part 5b Magnetic Head Arm Part 6 Magnetic Head Drive Motor 10, 11 Conductive Contact Piece

Claims (6)

[Claims] 1. A film feeding means for feeding a film provided with a slit, a magnetic recording means for recording information on a magnetic recording medium provided on the film, and a slit detecting means for detecting the slit of the film. In a film loading mechanism of a camera compatible with a magnetic film, which is provided with: a film feeding means; and a drive control means for driving and controlling the magnetic recording means. When the slit detecting means detects a predetermined slit of the film, the film feeding means detects the feeding amount of the film in the positive direction from the position at the time of detection, and the film feeding means moves in the positive direction. The film is fed in a direction opposite to the feeding direction by the film feeding means after the feeding amount is fed. By the magnetic recording means to the film at a predetermined amount when feeding in the opposite direction 1
A film loading mechanism for a camera, comprising a control means for recording initial information of a frame and setting the first frame of the film at a photographing position after the recording is completed. 2. A film feeding means for feeding a film provided with a slit, a magnetic recording means for recording information on a magnetic recording medium provided on the film, and a slit detecting means for detecting the slit of the film. A film loading mechanism of a camera compatible with a magnetic film, comprising: a film feeding means; and a drive control means for driving and controlling the magnetic recording means, respectively. The film is fed in the forward direction to a predetermined position between the position where the detecting means detects the predetermined slit of the first frame of the film and the position before the position where the predetermined slit of the second frame is detected, and the film is fed after the completion of the feeding. The film is fed in a direction opposite to the feeding direction by the feeding means, and the film is fed in a predetermined amount when the film is fed in the opposite direction. A film loading mechanism for a camera, further comprising control means for causing the magnetic recording means to record the initial information of the first frame and setting the first frame of the film at a photographing position after the recording is completed. . 3. A film feeding means for feeding a film provided with slits, a magnetic recording means for recording information on a magnetic recording medium provided on the film, and a film feeding means for feeding the film from the magnetic recording means. Slit detecting means for detecting the slit of the film, which is located on the downstream side in the positive direction and is separated from the magnetic recording means within one frame length;
A film loading mechanism of a camera compatible with a magnetic film, comprising: a film feeding means; and a drive control means for controlling the drive of the magnetic recording means. Is fed in the forward direction until it detects the predetermined slit of the first frame of the film, and after the feeding is completed, the film is fed in the direction opposite to the feeding direction by the film feeding means. A control means for causing the magnetic recording means to record the initial information of the first frame on the film in a predetermined amount at the time of feeding to the film and for setting the first frame of the film at the photographing position after the recording is completed. The film loading mechanism of the camera that is characterized. 4. A magnetic reading means for reading information recorded on a magnetic recording medium is further provided, wherein the information of the first frame includes position information of the first frame of the film. 4. The film loading mechanism for a camera according to claim 1, wherein the position of the first frame is detected by reading the position information of the first frame. 5. The film loading mechanism for a camera according to claim 1, wherein the slit detecting means is a conductive contact piece arranged so as to be conductive by being induced by the slit. . 6. The film loading mechanism for a camera according to claim 5, wherein the conductive contact piece is provided with a pressure plate mechanism that can also be used as a pressure plate by a pressing action of pressing the film.