JPH02192007A - Head bearing base mechanism - Google Patents

Abstract

PURPOSE:To prevent dust from being stuck on a magnetic tape surface, and to prevent the deterioration of a regenerative signal and the damage of a head by providing cleaners in magnetic tape running paths on the both sides of the magnetic head so as to pinch it. CONSTITUTION:Cleaners 2 to eliminate the dust on the surface of the magnetic tape and static electricity is provided in the magnetic tape running paths on the both sides of a magnetic head 1 so as to pinch it, and the magnetic head 1, the cleaners 2, and the ground of a head bearing base sub-assy 6 are composed so as to be an integral construction. Further by dropping the cleaners 2 on the same ground as the magnetic head 1 and the head bearing base sub- assy 6 together with them, the electrified charge of the magnetic tape can be eliminated. Thus information can be recorded/reproduced on the magnetic tape, where dust hardly exists on a clean surface, in a state having no static electricity, the reliability of recording/reproducing can be improved, and the damage of the magnetic head 1 can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a head bearing base mechanism, and more particularly to a head bearing base mechanism having a recording/reproducing magnetic head used in a magnetic tape device.

[Conventional technology]

Conventionally, this type of head bearing base mechanism is shown in Figure 3 (
As shown in a) and (b), the cleaner 2 is attached to the end of the air bearing block 3 opposite to the magnetic head 1.
It was a tfI4 construction with only one attached.

4 is a reference plate, 5 is a guide spring, 6
is a helad bearing-based subassay. With the above structure, the magnetic tape path first passes through the cleaner 2 to remove dust from the surface of the magnetic tape. after that,
The magnetic tape is adjusted by a reference plate 4 and a guide spring 5, passes through an air bearing block 3, and reaches a magnetic head 1. The magnetic tape recorded and reproduced by the magnetic head 1 passes through the air bearing block 3 located between the reference plate 4 and the guide spring 5 in the traveling direction again. Next, when traveling in reverse, contrary to the forward traveling described above, the magnetic tape is adjusted by the reference plate 4 and guide spring 5, passes through the air bearing block 3, and reaches the magnetic head 1. The magnetic tape reproduced by the magnetic head 1 passes again through the air bearing block 3 located between the reference plate 4 and the guide spring 5 in the traveling direction.
Go through Cleaner 2.

[Problem to be solved by the invention]

The above-mentioned conventional head bearing base structure has the disadvantage that the cleaner removes dust from the surface of the magnetic tape during forward travel, but the dust is then attracted to the surface of the magnetic tape again during the process of passing through the air bearing block 3. .

If the dust is magnetized tape scraps, it will lead to deterioration of the reproduction signal, and if the dust is large, it will damage the head 1.

Another drawback is that static electricity is generated while the magnetic tape passes through the air bearing block 3, and sparks are generated between the magnetic tape and the magnetic head 1 on the magnetic head 1, causing damage to the magnetic head.

An object of the present invention is to provide a head bearing base mechanism that solves the above problems.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a head bearing base mechanism having a recording/reproducing magnetic head, in which a magnetic tape running path on both sides of the magnetic head is provided with:
A cleaner is installed to remove dust and static electricity from the surface of the magnetic tape.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1(a) and 1(b) are a plan view and a front view showing an embodiment of the present invention.

In the figure, a cleaner 2.2 for removing dust and static electricity from the surface of the magnetic tape is installed in the magnetic tape running path on both sides of the magnetic head 1, and the magnetic head 1, the cleaner 2, and the head bear link base subassay are installed. It has a structure in which 6 grounds are integrated. 3 is an air bearing block, 4 is a reference plate, and 5 is a kite spring.

Details of the cleaner 2 are shown in FIGS. 2(a) and 2(b).

The cleaner 2 has a cleaner body 7, a blade 8, a central opening 9, an air kite line 10, a cleaner plate 11, and an air tube 12, and the blade 8 brushes off dust on the surface of the magnetic tape. The dust that has been brushed off is drawn into the air tube 12 through the air guideline 1o. Therefore, since the cleaners 2 are provided on both sides of the magnetic head 1, in the head bearing base mechanism of the present invention, when the magnetic tape comes directly in front of the magnetic head 1, regardless of the forward direction or reverse direction, It will remove any dirt that has adhered to it. Therefore, the magnetic head 1 can record and reproduce data with less dust.6 Also, by dropping the cleaner 2 on the same ground as the magnetic head 1 and the head bearing base subassay 6, when the magnetic tape comes into contact with the cleaner 2, the magnetic tape can remove the electrical charge. Therefore, there is no potential difference between the magnetic tape and the magnetic head 1, and generation of sparks is prevented.

〔Effect of the invention〕

As explained above, by providing grounded cleaners on both sides of the magnetic head, recording and reproduction can be performed on the magnetic tape with a clean surface with little dust and no static electricity. It has the effect of improving the reliability of the magnetic head and preventing damage to the magnetic head6.

[Brief explanation of the drawing]

FIG. 1(a) is a plan view showing one embodiment of the present invention, FIG. 1(b)
is a front view of the same, FIG. 2(a) is a plan view showing the cleaner of FIG. 1(a), FIG. 2(b) is a front view of the same, and FIG. 3(a) is a plan view showing the conventional head bearing base mechanism. , (b) is a front view of the same. l...Magnetic head 2...Cleaner 3...
・Air bearing block 4...Reference plate 5...Guide spring 6...Head bearing base subassay 7...
Cleaner body 8...Blade 9...Central opening
1o...Air guideline 11...Cleaner plate 12...Air tube patent applicant NEC Corporation Representative Patent attorney Naka Kanno/: Kotobuki Head (d) (b) No/Nigemasu Nerveplate /2; Air tube ゛' Fig. 2

Claims (1)

[Claims] (1) In a head bearing base mechanism having a magnetic head for recording and reproducing, cleaners are provided in the magnetic tape running path on both sides of the magnetic head to remove dust and static electricity from the surface of the magnetic tape. Features a head bearing base mechanism.