JPS6282583A - Magnetic tape device - Google Patents

Abstract

PURPOSE:To prevent the mixture of dust into a head by providing sharp cleaner blades at both sides of the head which is in contact with a tape and securing cleaning effects regardless of the forward or reverse drive of the tape. CONSTITUTION:A tape 6 is cleaned in its forward and reverse driving directions by the cleaner blades 10' and 10''. The blade 10' functions to clean the tape 6 when it is driven forward for reading/writing actions. While the blade 10'' cleans the tape 6 when it is driven reversely for reproduction. Thus the clean tape 6 is sent to a head 7. In such a way, the tape 6 which was cleaned in both forward and reverse driving directions is sent to the head 7. Thus the normal reading/writing actions are ensured.

Description

[Detailed Description of the Invention] [Summary] In a magnetic tape device that uses a magnetic tape cartridge to perform recording and playback using a recording and playback head, tape cleaners are provided on both sides of the recording and playback head to clean the tape. A cleaning effect can be obtained when feeding in both forward and reverse directions.

[Industrial application field]

The present invention relates to a magnetic tape device having a cleaner that has a cleaning effect on tape feeding in both forward and reverse directions.

In a magnetic tape device, since the tape runs in contact with a tape guide, a head, etc., the generation of dust and the like is unavoidable. Further, if dust or the like adheres to the head, recording and reproduction cannot be performed satisfactorily, so a tape cleaner is essential. Especially with the recent increase in recording density, even a small amount of dust on the head can cause major damage, so a tape cleaner is used to clean the tape and send it to the recording/playback head. There is a need for a magnetic tape device equipped with the following.

[Conventional technology]

Figure 3 shows a conventional cartridge type magnetic tape device.
(A) shows the inside of the magnetic tape device in a head cleaning state during recording/reproduction, and FIG. (B) shows the head block of the portion of FIG.

In the figure, reference numeral 1 denotes a magnetic tape device, which is equipped with a motor M on the spindle 4 of a tape drawer member 3 having a pair of tape guides 2, and rotates the tape drawer member 3 by the motor M. A tape 6 is pulled out from the tape 5 to form a tape running path, and a head 7 performs recording/reproduction. When rewinding the tape, one tape pull-out member 3 is returned so that the tape 6 does not come into contact with the head 7.

FIG. 3(b) shows a tape guide 8, which is provided before and after the head 7 (the head 7 includes an erase head a, a write head B, and a read head C), and is in contact with the tape 6. A cleaner 9 (having blades 10 at both ends, the blades 10 work to feed the tape 6 in the forward and reverse directions) is provided in front of the head 7 (in the forward direction of the tape), and the tape 6 is moved along the tape guide 8. This structure removes dust generated by running in contact with the head 7 and the like.

[Problem that the invention seeks to solve]

In the conventional tape cleaner shown in FIG. 3, tape cleaning is performed only in the forward direction of the tape 6 (in the direction of the arrow in the figure), and the tape 6 sent in the forward direction is sent to the head 7 in a clean state. It will be done. However, the magnetic tape device has a bank read function in which the tape 6 is sent in reverse and played back. In this case, since the tape 6 enters the head 7 and is read without being cleaned, there is a problem in that dust adheres to the head 7, lowering the level of reproduction output and causing a read error.

[Means for solving problems]

FIG. 1 is a diagram illustrating the present invention in detail.

FIG. 1 shows a tape cleaner provided within a magnetic tape device.

In the figure, sharp blade-like cleaner blades 10', 1
0'' is provided on both sides of the head 7 in contact with the tape 6.A tape guide 8 is provided on the outside of the cleaner blades 10' and 10# on both sides of the head 7, and is in contact with the chi 16.The tape 6 is The structure is such that cleaning is performed by cleaner blades 10' and 10'' in both directions.

[Effect]

Afterwards, when the tape is sent in the forward direction for reading/writing, the tape 6 is cleaned by the cleaner blade 10' and the tape 6 free of dust enters the head 7. In the case of a bank read in which the Qi 16 is sent in the reverse direction for playback, the tape 6 that has been cleaned by the cleaner blade 1o'' and has no dust enters the head 7. As a result, the cleaned tape 6 is read when the tape 6 is fed in both the forward and reverse directions. 6 is sent to the head 7, normal read/write operations can be performed.

〔Example〕

FIG. 2 is a diagram explaining the present invention in detail.

Note that the same reference numerals indicate the same objects throughout the figures.

FIG. 2 shows a head block. In the figure, 2 is a tape guide of a tape pull-out member, 6 is a tape of a tape path formed by the tape pull-out member, and 7 is an erase head a, a write head b, and a read head C. The head consists of Reference numeral 8 denotes tape guides on both sides of the head 7, which are in contact with the tape 6, and 10a and 10b are cleaners that connect the tape guides 8 on both sides of the head 7 and the head 7.
Provided between. The cleaners 10a, 10b have sharp blade-like cleaner blades 10', 10'' made of a hard material such as ceramic or sapphire.The magnetic tape device is constructed by attaching the above-mentioned hend block.

By providing cleaners 11 on both sides of the head 7, when the tape 6 runs in the forward direction, the cleaners 10a
When the tapes 6 are in the opposite direction, each tape 6 is cleaned by the cleaner 10b, so that dust and the like do not enter the head 7.

Therefore, even in the case of back reading in which the tape 6 is sent in the opposite direction and reproduced, a drop in the level of the reproduced output can be prevented.

〔Effect of the invention〕

As explained above, according to the present invention, by using a magnetic tape device with tape cleaners provided on both sides of the head, a cleaning effect can be obtained regardless of whether the tape is fed in the forward or reverse direction, thereby preventing dust from reaching the head. Since there is no intrusion, normal recording and playback is possible.

[Brief explanation of drawings]

FIG. 1 is a diagram explaining the present invention in detail, FIG. 2 is a diagram explaining the present invention in detail, and FIGS. 3(A) and (5) are diagrams explaining a conventional magnetic tape device. In the figure, 2 is the tape guide, 6 is the tape, 7 is the head, 8 is the tape guide, 10', 10'' are the cleaner blades, Garden 2nd area

Claims (1)

[Scope of Claims] A mechanism for driving a tape drawing member to draw out the tape (6) to form a tape running system;
6) Recording and playback head (7) for recording and playback
In a magnetic tape device comprising a tape guide (8) and a tape guide (8), the tape (
6) A magnetic tape device comprising a tape cleaner for cleaning.