JPS5857619A - Magnetic recorder and reproducer - Google Patents

Abstract

PURPOSE:To eliminate the need to unset a magnetic tape with hands when the tape is cleaned, by providing a cleaning member and a tape shifter to a rotor which is set eccentrically to a cylinder. CONSTITUTION:A rotor 12 is set eccentrically to the rotational center of a cylinder 5, and a rotation transmitter 13 is set in contact with the outer surface of the rotor 12 to transmit the rotation to the rotor 12. The transmitter 13 interlocks a driver 14. A tape shifter 15 is provided to the rotor 12 to shift a magnetic tape 1 out of the cylinder 5. The shifter 15 contains a cleaning member 16 which is in contact with the cylinder 5 as well as magnetic heads 9 and 10. When the tape contact surfaces of the heads 9 and 10 plus the cylinder 5 are cleaned, the rotor 12 is rotated to rotate and shift the member 16. Thus contact is secured between the member 16 and the heads 9 and 10, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic recording/reproducing device, and is capable of cleaning the magnetic head and cylinder at will when a head jam occurs.

FIG. 1 shows a schematic configuration diagram of a conventional magnetic recording/reproducing device. In this conventional example, before using the magnetic recording/reproducing apparatus, the magnetic tape (1) is loaded as follows. In Figure 1, the magnetic tape (1) wound on the supply reel (2) is transferred to the supply reel relay post (3), the regulation post (4), the cylinder (5), the regulation post (6), and the take-up reel relay. Take-up reel (8) through post (7) in order
The magnetic tape (1) is wound up and loaded.

The cylinder (5) is provided with a cylinder motor to rotate the cylinder at high speed, and has a rotating cylinder part and a fixed cylinder part, and two magnetic heads (9) Ql for recording and reproducing are arranged in the rotating cylinder part. ing. Further, the supply reel (2) and the take-up reel (8) are each provided with a reel drive motor in conjunction with each other. The arrow (a) indicates the running direction of the magnetic tape (1), and the arrow (b) indicates the rotation direction of the rotating cylinder section. In a conventional magnetic recording/reproducing device configured as shown in Fig. 1, when a head jam occurs and the magnetic head (9) θQ is to be cleaned, the rotating cylinder section on which the magnetic head (9) H is attached must be cleaned. After stopping the magnetic tape (1) mounted on the cylinder (5), remove the magnetic tape (1) mounted on the cylinder (5), hold the rotating cylinder part with your hand to fix it, and then remove the magnetic head (9) (I) protruding from the cylinder surface.
+) track surface was cleaned by wiping it with a cleaner (gauze, etc.).

However, this method 1 had various problems as follows.

■ When cleaning the magnetic head (9) OO, it is necessary to stop the rotating cylinder, remove the magnetic tape (1) manually, and clean it manually, which requires time and effort. did.

■ When cleaning, remove the magnetic head (9) (II
Care must be taken not to damage the.

■ The cleaner used during cleaning cannot be used again, and it is necessary to replace it every time cleaning is performed.

Next, as another conventional example, as shown in FIG. (9) There was one in which 01 passed through the cleaning layer 01) and was cleaned. However, even in this method, since the cleaning layer 01) is only provided at the beginning of the winding of the magnetic tape (]), cleaning can only be performed before the start of recording or playback, and if a head jam occurs during recording or playback, cleaning cannot be performed. It was necessary to use a cleaner such as the aforementioned gauze.

The present invention has been devised to solve this problem, and a cleaning member and a tape shifter for moving the magnetic tape away from the cylinder are provided on a rotary body that is provided eccentrically from the cylinder so as to surround the cylinder, thereby eliminating this problem during cleaning. This design eliminates the need to remove the magnetic tape manually and allows the cleaning operation to be carried out arbitrarily. ). In the figure, the same reference numerals as in FIG.
5) is an annular rotating body provided so as to surround the vicinity of the circumference, and the center of rotation of this rotating body is the cylinder (5).
is eccentric to the center of rotation. And this rotating body (
A single rotation transmitting body (to) is provided so as to contact the outer surface of the rotary body (2) and transmit rotation to the rotary body (2), and this rotation transmitting body (0)
is configured to be interlocked with the driving body 0→. Here, the rotating body α and the rotation transmitting body (to) are composed of gears, rubber rollers, etc., and the driving body θ is an electric motor. By the way, the rotating body (b) i is provided with a tape shifter 09 for separating the magnetic tape (1) from the cylinder (5), and this tape shifter OQ has a cylinder (5) and a magnetic head (9) or A cleaning member OI is attached to the surface that comes into contact with the tape (1).This cleaning member Q1 is attached to a cylinder (
5) and the magnetic head (9) or θq for cleaning, so it is composed of a beam-like member with a concave shape. In addition, the regulation post (41 (
(1) has not yet been installed.

Next, the operation of the present invention will be explained. Figure 3 shows that the magnetic tape (1) is normally mounted on the cylinder (5), and the cleaning member 01 is attached to the cylinder (5) and the magnetic head (9).
.

0 (indicates a state separated from l. Magnetic head (9)
When cleaning the contact surface of the magnetic tape (1) of the cylinder (5) and the cylinder (5), a command signal is given for a certain period of time to the drive body 0→ from the control circuit α force provided to command the rotation of the drive body cI4. By operating the driving body α→, the rotating body 0 starts rotating in response to the rotation of the driving body 0Φ, and the cleaning member αQ rotates from FIG. 8.

At the position shown in FIG. 5, the magnetic head (9) (IL) completely contacts the cleaning member OQ. On the other hand, the cylinder (
Regarding 5), it is necessary to clean the part on which the magnetic tape (1) is mounted, and the rotating body is configured so that it comes into contact with it from the stage of rotation. Also, although there are many possible conditions for cleaning, cylinder (5) I
This allows the magnetic head (9) αQ to be rotated or stopped, and cleaning is performed with the cleaning member 0φ by the rotation of the rotating body (2).

The magnetic self-recording and reproducing apparatus of the present invention can be implemented in one embodiment as described above, and a cleaning member for cleaning the cylinder and the magnetic head at the same time and a magnetic tape are mounted on a rotating body that is eccentrically provided to surround the cylinder. Because it is equipped with a tape shifter that moves it away from the cylinder,
The following effects can be obtained.

■ Unlike conventional IJ, the magnetic tape can be removed manually.
- No need to worry about cleaning.

■ It becomes possible to clean the cylinder and magnetic head at the same time.

(2) When cleaning, since the cleaning member has a rotating body number of 44, the precision of the contact position IG with the magnetic head is high, and no special characteristics are required for cleaning.

■ There is no need to replace the cleaning member every time you clean it.

■ Unlike conventional cleaning tapes, cleaning can be done at any time.

■ A rotating body equipped with a cleaning member is an inexpensive and simple structure as a cleaning device, and is easy to use.

[Brief explanation of the drawing]

Figure 1 is a schematic plan view of a conventional magnetic recording/reproducing device, Figure 2 is a schematic diagram of the configuration of a conventional magnetic tape, and Figures 8--
Fig. 6 shows an example of the implementation of the present invention, Fig. 8 is a schematic plan view, Fig. 4 is a schematic front view, Fig. 5 is a schematic plan view during cleaning operation, and Fig. 6 is an enlarged view of the same essential parts. It is. (1)...Magnetic tape, (5)...Cylinder, L9
) 0...Magnetic head, (2)...Rotating body, (To)
...Rotation transmission body, a4...Driving body, α0...Tape shifter, OQ...Cleaning member agent Yoshihiro Morimoto Fig. f Fig. 2 Fig. 5 Fig. 2

Claims (1)

[Scope of Claims] 1. A magnetic recording and reproducing device that uses a magnetic tape and a magnetic head attached to a rotating cylinder to record and reproduce signals on the magnetic tape, the cylinder surrounding the rotating cylinder. A magnetic recording and reproducing apparatus comprising: a rotating body eccentrically arranged, a driving body for rotationally driving the rotating body, and a cleaning member for cleaning the cylinder surface and the magnetic head, and a tape shifter for moving the magnetic tape away from the cylinder attached to the rotating body. Device. 2. The magnetic recording and reproducing apparatus according to claim 1, further comprising a control circuit that applies an arbitrary control signal for a certain period of time to the drive body f that drives the rotating body to control the drive body.