JPH09106517A - Magnetic recording/reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a magnetic recording/reproducing device capable of cleaning a magnetic head in the state that a photographic film exists on a film transfer path. SOLUTION: The magnetic head 44 is fixed to a magnetic head attaching base 66 moving in the direction perpendicular to the longitudinal direction of the photographic film by a motor 70, and when the magnetic head 44 is cleaned, the magnetic head 44 is moved to a position of a dust roller 60. On the other hand, the dust roller 60 is fixed onto a fixed base 58 retreatable downward together with a roller 52. When the magnetic head 44 is cleaned, after the fixed base 58 is retreated, and the roller 52 and the dust roller 60 are retreated from the photographic film, the magnetic head 44 is moved to the position of the dust roller 60, and the fixed base 58 is returned to the original position again, and the dust roller 60 is brought into contact with the magnetic head 44. Then, the dust roller 60 is rotated by the motor 62, and the dust stuck to the magnetic head 44 is removed. Thus, even in the state that the photographic film exists on the film transfer path, the cleaning is performed while leaving the photographic film as it is.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording / reproducing apparatus, and more particularly to a magnetic recording / reproducing apparatus for recording / reproducing magnetic information of a photographic film having a magnetic recording layer.

[0002]

2. Description of the Related Art A camera has been proposed in which a photographic film having a magnetic recording layer is used, and the photographing date and time, photographic information and the like are written by a magnetic head or read from the photographic film while feeding the photographic film at the time of photographing. (JP-A-4-81735 and JP-A-4-285937).

Further, there has been proposed a film image reproducing apparatus for photographing a developed photographic film with an image sensor, converting the image of the photographic film into an image signal, and outputting the image signal to a monitor TV to display the film image. . A magnetic recording / reproducing device is provided in such a film image reproducing device to monitor information recorded on the magnetic recording layer of a photographic film on a monitor TV.
It has been proposed to use it as information for reproduction or for printing a film image on photographic paper.

[0004]

By the way, in the film image reproducing apparatus as described above, when the film is conveyed, dust and the like adhering to the film surface adheres to the magnetic head for magnetic recording and reproduction, and the normal magnetic field is reproduced. Recording and playback may not be possible. Particularly, in the case of the above-mentioned photographic film, there is a problem that dusts are easily attached to the magnetic head because residual dust of the developing solution is attached to the film.

Further, when an error or the like occurs due to dust adhering to the magnetic head when a film cartridge is loaded and magnetic recording and reproduction are performed, the film cartridge is removed from the film image reproducing apparatus one by one. It takes time and effort to remove and clean the magnetic head. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a magnetic recording / reproducing apparatus capable of cleaning the magnetic head while the photographic film is in the film transport path.

[0006]

In order to achieve the above-mentioned object, the present invention provides a photographic film having a magnetic recording layer with a magnetic head for magnetic recording and reproduction so as to be retractable from the film transport path, and It is characterized in that a dust removing means is provided at a retracted position, the magnetic head is retracted at the time of cleaning the magnetic head, and dust adhering to the magnetic head is removed by the dust removing means.

According to the present invention, when cleaning the magnetic head, the magnetic head is retracted from the film transport path,
The dust attached to the magnetic head is removed by the dust removing means provided at the retracted position of the magnetic head. As a result, the magnetic head can be cleaned even when the film is on the film transport path.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a magnetic recording / reproducing apparatus according to the present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a configuration diagram in which a magnetic recording / reproducing apparatus according to the present invention is applied to a film image input apparatus.

A film cartridge 12 is mounted in the main body 10 of the film image input device shown by the chain double-dashed line in the figure. In the film cartridge 12, a developed photo film 14 is wound around a spool 16 in advance. As shown in FIG. 2, the photographic film 14 has image areas 18, 18 ... Formed at predetermined intervals along the longitudinal direction, and holes 20A, 20B indicating the image area 18 are provided at the start end of the image area 18. A magnetic recording layer 22 is formed on the entire surface of the film or on the edge of the film, and magnetic data indicating shooting data for each frame can be recorded on the magnetic recording layer 22. It is like this.

The photographic film 14 is fed from the film cartridge 12 shown in FIG. 1 by a film driving mechanism and then fed in the direction of the arrow in FIG. The film drive mechanism is the spool 1 of the film cartridge 12.
6 and a film supply unit for rotating the spool 16 in the normal / reverse direction and a take-up spool 26 of the film take-up chamber 24 for winding the photographic film 14 delivered from the film supply unit. Capstan 2 of the photo film 14 sent out from the taking part and the film supplying part.
8, 28 and the pinch rollers 30, 30 and a film feeding unit for feeding at a constant speed.

The film supply section drives the spool 16 of the film cartridge 12 clockwise in the drawing,
From the film cartridge 12 to the photographic film 14 until the leading end of the film is taken up by the take-up spool 26.
I am trying to send out. Further, the film supply unit is provided with a clutch mechanism for controlling the rotation of the spool 16, and the photographic film 14 is fed with a predetermined tension by the action of the clutch mechanism and the driving force of the capstans 28, 28. To be done.

On the other hand, a CCD line sensor 32 is installed above the capstans 28, 28. The CCD line sensor 32 is arranged in a direction orthogonal to the feeding direction of the photographic film 14, and reads a transmission image of the feeding film 14 illuminated by the light source 34 through the taking lens 36. The electric signal converted by the photoelectric conversion element of the CCD line sensor 32 is subjected to image processing by the image processing device 38, and then output as a video signal to the monitor TV 40. As a result, the image of the photo film 14 is displayed on the monitor TV 40.

The photographic film 14 delivered from the film cartridge 12 is guided to the capstan 28 via the magnetic head device 42. Magnetic head device 42
As shown in FIGS. 3 and 4 (FIG. 3 is a front view of the magnetic recording / reproducing apparatus according to the present invention, and FIG. 4 is a top view of the magnetic recording / reproducing apparatus according to the present invention), a magnetic head is provided above the photographic film 14. 44 is provided, and the magnetic head 44 is fixed to a magnetic head mount 66. Magnetic head mount 66
A rack 68 is provided at the side of the rack 68, and the rack 68 is engaged with a pinion 72 rotated by a motor 70.

When the motor 70 rotates, the magnetic head mount 66 moves in a direction perpendicular to the longitudinal direction of the photographic film 14 as the motor rotates. As a result, when cleaning the magnetic head 44, the magnetic head 44 is moved to a position in contact with a dust removing roller 60 described later. The details will be described later. A roller 52 is provided below the photographic film 14 corresponding to the magnetic head 44. The roller 52 is rotatably supported by a roller shaft 54, and both ends of the roller shaft 54 are fixed to a bearing 56. Then, the bearing 56 is fixed to the fixed base 58. The fixing base 58 is biased upward by a spring or the like, and the biasing force causes the roller 52 to press the magnetic recording layer 22 of the photographic film 14 to the magnetic head 44.

As a result, magnetic data can be recorded on the magnetic recording layer 22 from the magnetic head 44, and the magnetic data recorded on the magnetic recording layer 22 can be read by the magnetic head 44. The magnetic data read by the magnetic head 44 is reproduced by the magnetic recording / reproducing device 50 shown in FIG. 1 and is displayed together with the film image on the monitor TV 40, or a predetermined image processing command is transmitted to the image processing device 38.

The fixed table 58 is retracted downward during film transport other than during magnetic recording / reproduction, and the roller 52 is retracted from the film transport road surface. This prevents abrasion of the photographic film. On the other hand, as shown in FIGS. 3 and 4, a dust removing roller 60 is attached to the side of the roller 52. The dust removing roller 60 is fixed to the rotation shaft 64 of the motor 62 and rotates with the rotation of the motor 62. The motor 62 is fixed to the fixed base 58 and retracts downward together with the roller 52. The dust removing roller 60 is formed of, for example, felt or rubber.

Next, the operation for cleaning the magnetic head 44 in the magnetic recording / reproducing apparatus will be described with reference to the flowchart of FIG. When the cleaning key installed in the main body 10 of the film image input device is selected (step S10), first, the fixing table 58 fixing the dust removing roller 60 and the roller 52 is retracted (step S12), and the dust removing is performed. The roller 60 and the roller 52 are retracted. Then, the motor 70 is rotated to rotate the pinion 72.
Is rotated to move the magnetic head mount 66 through the rack 68 to the left in FIG. 3 (toward the dust removing roller 60). Then, the magnetic head 44 moves the dust removing roller 6
The magnetic head mounting base 66 is stopped when the magnetic head mounting base 66 is moved above 0 (step S14).

After the magnetic head mounting base 66 is stopped, the fixed base 58 that has been retracted next is returned upward, and the dust removing roller 60 is pressed against the magnetic head 44 (step S16). After that, the motor 62 is rotated to rotate the dust removing roller 60 (step S1).
8). This removes dust attached to the magnetic head 44. At this time, the timer is operated for 10 seconds (step S20), the dust removing roller 60 is rotated for 10 seconds, and then the rotation of the dust removing roller 60 is stopped (step S22).

When the cleaning of the magnetic head 44 is completed, the fixed base 58 fixing the dust removing roller 60 and the roller 52 is retracted again (step S24), and the motor 7 is moved.
0 is rotated to return the magnetic head mount 66 to its original position. That is, the magnetic head 44 is returned from the dust removing roller 60 to the position corresponding to the roller 52 (step S26).
Then, the retracted fixed base 58 is returned to the upper position again, and the photographic film 14 is pressed against the magnetic head 44 by the roller 52 (step S28).

The dust removing roller 60 cleans the magnetic head 44 as described above. Since the cleaning of the magnetic head 44 by the dust removing roller 60 is performed on the side of the film transport path, the above cleaning can be similarly performed with or without the photographic film 14 in the film transport path. This allows
Even when the cleaning key is selected while the film cartridge is loaded and magnetic recording / playback is being performed,
It can be cleaned without removing the film cartridge. When the cleaning key is selected during an operation such as magnetic recording / reproduction, these operations can be temporarily interrupted, cleaning can be performed, and then the operation can be restarted from the interrupted state.

In the above embodiment, the cleaning of the magnetic head 44 is started when the cleaning key is selected. However, the cleaning of the magnetic head 44 is not limited to this. You may For example, cleaning may be performed every time a predetermined amount of photographic film is conveyed. Further, in the above embodiment, the shafts of the roller 52 and the dust removing roller 60 are provided separately, but these shafts are made common and the roller 52 is coaxially provided.
A dust removing roller 60 may be installed.

[0022]

As described above, according to the magnetic recording / reproducing apparatus of the present invention, when cleaning the magnetic head,
The magnetic head is retracted from the film transport path, and dust adhering to the magnetic head is removed by dust removing means provided at a position where the magnetic head is retracted. As a result, the magnetic head can be cleaned even when the film is in the film transport path, and when the film is being transported, the magnetic head can be cleaned by only temporarily stopping the transport of the film. Like

[Brief description of the drawings]

FIG. 1 is a configuration diagram in which a magnetic recording / reproducing apparatus according to the present invention is applied to a film image input apparatus.

FIG. 2 is a plan view showing an embodiment of a photographic film used in a magnetic recording / reproducing apparatus.

FIG. 3 is a front view of a magnetic recording / reproducing apparatus according to the present invention.

FIG. 4 is a top view of a magnetic recording / reproducing apparatus according to the present invention.

FIG. 5 is a flowchart at the time of cleaning the magnetic head of the magnetic recording / reproducing apparatus according to the present invention.

[Explanation of symbols]

 10 ... Film image input device main body 12 ... Film cartridge 14 ... Photo film 22 ... Magnetic recording layer 32 ... CCD line sensor 42 ... Magnetic head device 44 ... Magnetic head 52 ... Roller 56 ... Bearing 58 ... Fixed stand 60 ... Dust removal roller 62 … Motor 66… Magnetic head mount 70… Motor

Claims (3)

[Claims] 1. A photographic film having a magnetic recording layer is provided with a magnetic head for performing magnetic recording and reproduction so as to be retractable from a film transport path, and dust removing means is provided at a position where the magnetic head is retracted to clean the magnetic head. At the same time, the magnetic recording / reproducing apparatus is characterized in that the magnetic head is retracted, and dust adhering to the magnetic head is removed by the dust removing means. 2. The dust removing means comprises a dust removing roller that comes into contact with the magnetic head at a position where the magnetic head is retracted, and a driving means that rotates the dust removing roller. Magnetic recording and reproducing device. 3. The magnetic recording / reproducing apparatus according to claim 2, wherein the axis of the dust removing roller is also used as the axis of a head pressure bonding roller for pressing the film against the magnetic head.