JPH07141731A - Magnetic head device for photographic film - Google Patents

Abstract

PURPOSE:To obtain a magnetic head device for photographic film capable of adjusting the positions of a magnetic head and a pad, and being easily assembled in a main body part. CONSTITUTION:The magnetic head 32 of the magnetic head device 30 is fixed on a supporting plate 36 by using a guid block 38, etc. The pad 34 is arranged in a frame part 40 protrusively formed on the supporting plate 36 and energized toward the magnetic head 32 by a spring 42. This magnetic head device 30 is assembled in the main body by previously adjusting the position of the head 32 with respect to the pad 34 by using the guide block 38, etc., and fixing the head 32 at an optimum position where the leading abutting part 32A of the head 32 abuts on the pad 34 by optimum pressing force. Then, the magnetic head device 30 is assembled in the main body of a film image input device. Since a substance unitized after attaching the head 32 and the pad 34 in the supporting plate 36 is assembled, the head 32 and the pad 34 are assembled in the main body through one operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head device for a photographic film, and more particularly to a magnetic head for a photographic film for magnetically recording and reproducing by pressing the magnetic recording layer of the photographic film being fed to the magnetic head with a pad. Regarding the device.

[0002]

2. Description of the Related Art Heretofore, there has been proposed a camera which uses a photographic film having a magnetic recording layer and writes or reads information such as a shooting date and time and shooting information with a magnetic head at the time of shooting. The information recorded on the magnetic recording layer of the photographic film is used as information when the photographic film is developed and then photographed by an image sensor and reproduced on a monitor TV, or on the photographic paper. It is also used as information when burning.

In a conventional magnetic head device for a photographic film, a pad 2 is provided at a position facing the magnetic head 1 as shown in FIG. 3, and the pad 2 is urged toward the magnetic head 1 by a spring 3. By doing so, the magnetic recording layer of the photographic film F is brought into close contact with the magnetic head 1.

[0004]

However, in the conventional magnetic head device for a photographic film, the magnetic head 1 and the pad 2 are attached to separate members 4 and 5, and these members 4 and 5 are used in a camera or the like. Since it is configured by being fixed to the main body portion 6, it has a drawback that it takes time to assemble and it takes time to adjust the positions of the magnetic head 1 and the pad 2.

The present invention has been made in view of the above circumstances, and provides a magnetic head device for a photographic film in which the position adjustment of the magnetic head and the pad and the assembly to the main body can be easily performed. The purpose is to

[0006]

In order to achieve the above object, the present invention provides a photographic film having a magnetic recording layer,
In a magnetic head device for a photographic film, wherein the magnetic recording layer of the photographic film being fed is pressed against the magnetic head by a pad to perform magnetic recording / reproduction, the magnetic head and the pad are:
It is characterized by being attached to a common member and being unitized.

[0007]

According to the present invention, since the magnetic head and the pad are attached to a common member to form a unit, the magnetic head device can be assembled to the main body portion in one operation. Thus, in the present invention, the magnetic head device can be easily assembled to the main body portion, and the pad and the magnetic head can be adjusted in position on the common member, so that the position can be adjusted easily. After the assembly, if the magnetic recording layer is not in contact with the proper position of the magnetic head,
It can be adjusted by moving the common member without adjusting the magnetic head or the pad.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a magnetic head device for a photographic film according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a structural diagram in which a magnetic head device for a photographic film according to the present invention is applied to a film image input device.

A film cartridge 12 is installed 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 still photo film F is wound around a spool 14 in advance, and the photo film F is fed by a film driving mechanism. The film drive mechanism is engaged with the spool 14 of the film cartridge 12, and is engaged with a film supply section that rotates the spool 14 in the forward / reverse direction, and with a take-up spool 18 of the film take-up chamber 16, and the film supply section is provided. The film winding section for winding the film F fed from the film F, and the film F arranged in the feeding path of the film F for nipping the film F between the capstans 20, 20 and the pinch rollers 22, 22 and feeding it at a constant speed. It is composed of a feeding section.

The film supply section drives the spool 14 of the film cartridge 12 in the clockwise direction in the figure, and the film is wound up on the spool 1 at the film winding section.
Film cartridge 1 until wound by 8
The film F is sent out from 2. Further, the film supply section is provided with a clutch mechanism for controlling the rotation of the spool 14, and the action of the clutch mechanism and the driving force of the capstans 20, 20 feeds the film F with a predetermined tension. It

The film F sent from the film cartridge 12 is guided to the capstan 20 via the magnetic head device 30. The magnetic head device 30 is provided with a magnetic head 32 below the film F and a pad 34 above the film F. The magnetic head 32
As shown in FIG. 2, it is attached to a support plate 36 formed in a rectangular shape, and a guide block 38 fixed to the support plate 36 positions and fixes in the left-right direction in the drawing. Further, the magnetic head 32 has the support plate 36.
Is guided by an elongated hole (not shown) formed in the vertical direction in the figure and fixed at a desired position in the vertical direction.

In the pad 34, a flange portion 34A formed at an upper end portion is inserted and arranged in a rectangular frame portion 40 formed to project on a support plate 36. Further, the pad 34 is
The magnetic head 32 is provided by the spring 42 provided in the frame 40.
Is urged towards. Further, the pad 34 is the spring 4
The flange portion 34A comes into contact with the stopper piece 44 of the frame portion 40 by the urging force of 2, so that the flange portion 34A does not fall off the frame portion 40.

As a result, the magnetic recording layer 45 of the film F passing through the magnetic head device 30 is pressed against the tip abutting portion 32A of the magnetic head 32 by the pad 34.
The magnetic data of the magnetic recording layer read by the magnetic head 32 is reproduced by the magnetic recording / reproducing device 46 shown in FIG. 1 and displayed on the monitor TV 48. On the other hand, the CCD line sensor 50 is installed below the capstan 20, 20. The CCD line sensor 50 is arranged in a direction orthogonal to the feeding direction of the film F, and reads the image of the feeding film F illuminated by the light source 52 through the taking lens 54. In addition, the CCD line sensor 5
The electric signal converted by the photoelectric conversion element of 0 is subjected to image processing by the image processing device 56, and then the monitor TV 4
8 is output as a video signal. This allows the monitor T
On V48, the image of the film F and the image recorded in the magnetic data are displayed.

Next, the operation of the magnetic head device for a photographic film constructed as described above will be described. First, the magnetic head device 30 is attached to the main body 1 of the film image input device.
Before assembling the magnetic head 3 to the pad 34,
The position of 2 is the guide block 3 fixed to the support plate 36.
8 or an elongated hole is used to adjust the tip contact portion 32A of the magnetic head 32 at an optimal position and with an optimal pressing force.
The magnetic recording layer 32 is fixed at a position where the magnetic recording layer 32 comes into contact with the magnetic recording layer 4. Then, the position-adjusted magnetic head device 30 is assembled to the main body 10.

That is, in the present embodiment, the magnetic head 32 and the pad 34 are attached to the support plate 36 to be unitized, so that the magnetic head 32 and the pad 34 can be assembled to the main body 10 in one operation. You can As a result, in this embodiment, the magnetic head device 30 can be easily assembled to the main body 10, and the labor of adjusting the positions of the magnetic head and the pad after the assembly can be omitted.

When the magnetic recording layer 45 is not in contact with the proper position of the magnetic head 32 after assembly, the conventional magnetic head device must readjust the magnetic head or pad positioned at the proper position. . However, in this embodiment, the adjustment can be performed by moving only the support plate 36. In this embodiment, the magnetic head device for a photographic film applied to the film image input device has been described, but the present invention is not limited to this and may be applied to a camera having a magnetic head. in this case,
The magnetic head of the camera records magnetic data on the magnetic recording layer of the photographic film before development.

[0017]

As described above, according to the magnetic head device for a photographic film of the present invention, the magnetic head and the pad are attached to a common member to form a unit, so that the magnetic head device can be easily mounted on the main body. Since the pad and the magnetic head can be adjusted in position on the common member, the position can be easily adjusted, and further, after the assembly, the magnetic recording layer is formed at an appropriate position of the magnetic head. When they are not in contact with each other, the adjustment can be performed by moving the common member without adjusting the magnetic head or the pad.

[Brief description of drawings]

FIG. 1 is a structural diagram showing an embodiment in which a magnetic head device for a photographic film according to the present invention is applied to a film image input device.

FIG. 2 is a perspective view showing an embodiment of a magnetic head device for a photographic film according to the present invention.

FIG. 3 is a perspective view showing an embodiment of a conventional magnetic head device for a photographic film.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Film image input device main body 12 ... Film cartridge 30 ... Magnetic head device 32 ... Magnetic head 34 ... Pad 36 ... Support plate 38 ... Guide block 40 ... Frame part 45 ... Magnetic recording layer F ... Film

Claims (1)

[Claims] 1. A magnetic head device for a photographic film, wherein a photographic film having a magnetic recording layer is fed, and the magnetic recording layer of the photographic film being fed is pressed against a magnetic head by a pad for magnetic recording and reproduction. The magnetic head device for a photographic film is characterized in that the magnetic head and the pad are attached to a common member to be unitized.