JPH064835A - Magnetic head cleaning device - Google Patents

Abstract

PURPOSE:To provide a magnetic head cleaning device capable of automatically cleaning the tape contacting surface of the magnetic head. CONSTITUTION:A sliding plate 6 is slid interlocking with a cassette loading mechanism. A rotative plate 12 freely rotatably supported by a fixed substrate 2 is provided with a pad 15 made of felt. Since the sliding plate 6 and the rotative plate 12 are connected by a pin 14, the rotative plate 12 is rotated in accordance with the sliding movement of the sliding plate 6, the tape contacting surface of a magnetic head 11 is rubbed by the pad 15 and the tape contacting surface of the magnetic head 11 is cleaned.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head cleaning device for cleaning a magnetic tape contact surface of a magnetic head used for a cassette deck or the like.

[0002]

2. Description of the Related Art Conventionally, in a magnetic recording / reproducing apparatus for recording and reproducing data by contacting a running magnetic tape with a magnetic head, a binder of the magnetic tape is generated by heat generated by friction between the running magnetic tape and the magnetic head. Was softened, and the coating material of the magnetic tape peeled off and adhered to the magnetic head, deteriorating the recording and reproducing characteristics. Therefore, conventionally, the magnetic head has been regularly cleaned manually.

[0003]

However, manually cleaning the magnetic head as in the above-described conventional example is complicated and inconvenient.

The present invention solves the above-mentioned conventional problems and provides a magnetic head cleaning device having a simple structure and capable of automatically cleaning the magnetic head when the magnetic recording / reproducing device is used.

[0005]

In order to achieve the above object, the present invention provides a sliding mechanism which slides in conjunction with a cassette loading mechanism and a sliding portion which is rotatably supported by a fixed portion. It is characterized by comprising a rotating plate connected to the mechanism and a cleaning material provided on the rotating plate.

[0006]

The present invention has the above-described structure. When the cassette loading mechanism operates, the sliding mechanism slides in conjunction with the cassette loading mechanism, and the rotary plate connected to the sliding mechanism rotates. Then, the magnetic tape contact surface of the magnetic head is rubbed and cleaned by the cleaning material provided on the rotating plate.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
Will be explained together. The present embodiment is an example of application to a vehicle-mounted magnetic recording device equipped with a loading mechanism that guides a cassette inserted into a cassette insertion port to a reproduction position by a driving force of a motor. 1 and 2, reference numeral 1 is a main board of a cassette deck, 2 is a fixed board screwed to the upper surface of the main board 1, and a long hole 3 is formed in the fixed board 2. Reference numeral 4 denotes a cassette holder that holds the cassette inserted into the cassette insertion port, and a pin 5 that is planted on the side surface of the cassette holder 4 is inserted into the long hole 3 of the fixed substrate 2. The cassette holder 4 is the fixed substrate 2
It is guided by the elongated hole 3 and is transferred in the arrow X direction or the opposite direction of the arrow X by the driving force of the motor. Reference numeral 2a is a guide plate portion formed by bending a part of the fixed substrate 2 at a substantially right angle, and the guide plate portion 2a is substantially parallel to the main substrate 1. Reference numeral 6 denotes a slide plate slidably arranged on the upper surface of the guide plate portion 2a, and the slide plate 6 has elongated holes 7a and 7b. Reference numerals 8a and 8b are guide pins implanted in the guide plate portion 2a, and the sliding plate 6 is guided by the guide pins 8a and 8b and slides in the arrow X direction and the opposite direction of the arrow X. Reference numeral 9 denotes a spring, one end of which is locked to the sliding plate 6 and the other end of which is locked to the guide plate portion 2a.
The sliding plate 6 is biased in the direction opposite to the arrow X by the biasing force of the spring 9. A head substrate 10 is slidably supported on the upper surface of the main substrate 1, and a magnetic head 11 is fixed to the head substrate 10. The head substrate 10 moves on the main substrate 1 in the arrow Y direction or in the direction opposite to the arrow Y. When the head substrate 10 moves in the arrow Y direction, the magnetic head 11 contacts the magnetic tape in the cassette. It is reproducible. 12 is shown in FIG.
As shown in FIG. 3, the rotating plate has two protruding pieces 12a and 12b. One end of one protruding piece 12a of the rotating plate 12 is rotatably supported by the fixed substrate 2 by a pin 13. There is. 6a is a projecting plate formed by bending a part of the sliding plate 6 at a substantially right angle, and a long hole 6b is formed in this projecting plate. Reference numeral 14 denotes a pin fixed to the tip of the other protruding piece 12b of the rotating plate 12, and this pin 14 is inserted into the long hole 6b of the protruding plate 6a. Reference numeral 15 is a cleaning material attached to the back surface of the rotating plate 12. As the cleaning material 15, for example, a felt pad is used. 6
Reference numeral c is a bent piece formed by bending one end of the sliding plate 6, and the bent piece 6c can contact the pin 5 moving in the arrow X direction.

Next, the operation of the above embodiment will be described.
When the cassette is inserted into the cassette insertion opening of the cassette deck, the loading switch is turned on and the motor starts rotating, and the driving force of this motor operates the cassette loading mechanism. When the cassette loading mechanism operates, the cassette holder 4 is guided by the long hole 3 of the fixed substrate 2 and moves in the arrow X direction. As the cassette holder 4 moves in the direction of the arrow X, the pin 5 implanted in the cassette holder 4 contacts the bent piece 6c of the sliding plate 6. When the cassette holder 4 further moves in the arrow X direction, the pin 5 pushes the bent piece 6c in the arrow X direction. Therefore, the sliding plate 6 is driven in the arrow X direction against the biasing force of the spring 9. In the elongated hole 6b of the protruding plate 6a of the sliding plate 6, the protruding piece 12 of the rotating plate 12 is inserted.
Since the pin 14 implanted in b is inserted, when the sliding plate 6 slides in the arrow X direction, the pin 14 is driven in the arrow X direction. Since the protrusion 12a of the rotating plate 12 is pivotally supported by the fixed substrate 2 by the pin, when the sliding plate 6 slides in the arrow X direction and the pin 14 is driven in the arrow X direction, the rotating plate 12a rotates. 12 rotates in a counterclockwise direction (counterclockwise direction in FIG. 1) about the pin 13 as a fulcrum, and the cleaning material 15 attached to the rotating plate 12 rotates counterclockwise while rubbing the tape contact surface of the magnetic head 11. The cleaning material 15 moves. After that, when the cassette is set to the playback position,
The head substrate 10 moves in the arrow Y direction, and the magnetic head 11
Comes into contact with the tape in the cassette to start the reproducing operation.
When the reproduction is completed, the head substrate 10 moves in the direction opposite to the arrow Y, and the cassette is held by the cassette holder 4 and transferred to the cassette insertion port by the loading mechanism. During this transfer, the pin 5 implanted in the cassette holder 4 moves in the direction opposite to the arrow X, so that the sliding plate 6 slides in the direction opposite to the arrow X by the urging force of the spring 9. When the sliding plate 6 slides in the direction opposite to the arrow X, the pin 14 implanted in the sliding plate 6 also moves in the direction opposite to the arrow X, so that the rotating plate 12 rotates clockwise. During the rotation, the tape contact surface of the magnetic head 11 is rubbed by the cleaning material 15 to clean the tape contact surface of the magnetic head 11.

As described above, according to the above embodiment, the cleaning device for cleaning the magnetic head 11 can be realized with a simple structure utilizing the cassette loading mechanism. Further, according to the above-described embodiment, there is an advantage that the head cleaning can be automatically and surely performed when the cassette is inserted into the magnetic recording / reproducing apparatus and when the cassette is ejected.

[0010]

The present invention has the above-mentioned structure and has an advantage that the tape contact surface of the magnetic head can be automatically cleaned with a simple structure.

[Brief description of drawings]

FIG. 1 is a front view of a main part of a magnetic head cleaning device according to an embodiment of the present invention.

FIG. 2 is a top view of the same embodiment.

FIG. 3 is a front view of the rotating plate of the embodiment.

[Explanation of symbols]

 1 Main Board 2 Fixed Board 3 Long Hole 4 Cassette Holder 5 Pin 6 Sliding Plate 10 Head Substrate 11 Magnetic Head 12 Rotating Plate 13, 14 Pin 15 Pad

Claims (1)

[Claims] 1. A sliding mechanism that slides in conjunction with a cassette loading mechanism, a rotating plate that is rotatably supported by a fixed portion and is connected to the sliding mechanism, and a rotating plate provided on the rotating plate. A magnetic head cleaning device for cleaning the tape contact surface of the magnetic head with the cleaning material as the rotary plate rotates.