JPS61115217A - Cleaning tape - Google Patents

Abstract

PURPOSE:To clean a magnetic head without damaging it unnecessarily by repeating alternately a magnetic head cleaning tape which becomes shorter slowly and a picture quality checking tape. CONSTITUTION:The titled tape is constituted such that more than one set of the picture quality checking tape and the magnetic head cleaning tape which becomes shorter slowly from its tip are alternately repeated. The magnetic head is cleaned by the magnetic head cleaning tape 1 first time, and then the picture quality is checked by the picture quality checking tape 2 first time. However, when the cleaning is not carried out, the tape is further advanced to clean the magnetic head. The necessity of the cleaning is less compared with the initial step. Here the 2nd cleaning is executed. However, if the cleaning is finished on the way, the polishing amount of the magnetic head is decreased, because the magnetic head cleaning tape 1 is shorter than the magnetic head cleaning tape first time. Accordingly more appropriate cleaning can be carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cleaning tape for cleaning a magnetic head used in a magnetic recording/reproducing device.

2. Description of the Prior Art Structure and Problems There has been a remarkable rise in the popularity of magnetic recording and reproducing devices such as video tape recorders (hereinafter abbreviated as VTR) in recent years. As the quantity of VTRs increases, cleaning tapes that remove dirt from the magnetic heads used in VTRs are also coming on the market in large quantities.

With reference to the drawings below, we will discuss the conventional
I will explain about the tape.

FIG. 1 is an external view of a conventional cleaning tape. Cleaning tapes are usually packaged in a box called a cassette, but only the cleaning tape is shown here. 1st
In the figure, 1 is a tape for cleaning the magnetic head, 2 is a tape for checking image quality, and 3 is a leader tape.

Regarding the cleaning tape configured as above,
The operation will be explained below - First, the cleaning tape is set on the VTR and run. First, the magnetic head cleaning tape 1 comes into contact with the magnetic head to remove dirt attached to the magnetic head. Next, check the image quality with the image quality confirmation tape 2 to check how much dirt has been removed from the magnetic head, and determine whether further cleaning is required.If further cleaning is necessary, repeat the same operation, and if unnecessary, use the cleaning tape. stop.

However, in the conventional cleaning tape, since the length of the magnetic head cleaning tape 1 is the same, it is difficult to perform proper cleaning.

That is, since the image quality cannot be checked while the magnetic head cleaning tape 1 is running, there is a possibility that the magnetic head may be scraped too much by the magnetic head cleaning tape 2.

OBJECTS OF THE INVENTION In view of the above-mentioned drawbacks, the present invention provides a cleaning tape that can properly clean a magnetic head.

Structure of the Invention In order to achieve this object, the cleaning tape of the present invention is made by alternately repeating one or more sets of a tape for checking image quality and a tape for cleaning a magnetic head whose length gradually becomes shorter from the tip. This structure prevents the magnetic head from being cleaned more than necessary and prevents damage to the magnetic head.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 shows an external view of a cleaning tape in an embodiment of the present invention.

In FIG. 2, 1 is a tape for cleaning the magnetic head, 2 is a tape for checking image quality, and 3 is a league tape.

Regarding the cleaning tape configured as above,
The operation will be explained below.

First, the magnetic head is cleaned by using the magnetic head cleaning tape 1 for the first time. Next, the image quality is checked using the first image quality checking tape. If the screen returns to its original state after checking the image quality, there is no need to use the next magnetic head cleaning tape 1, so the process stops immediately. However, when cleaning has not yet been completed, the tape is further advanced and cleaning is performed, but since the first cleaning has already been completed, the need for cleaning is less compared to the initial stage.

Therefore, a second cleaning is carried out, but if the cleaning ends in the middle of the cleaning, the amount of polishing of the magnetic head will be less because the magnetic head cleaning tape 1 is shorter than the first magnetic head cleaning tape. Become.

Therefore, it is better to practice more moderate leaning.

Effects of the Invention As described above, the present invention is capable of cleaning the magnetic head without damaging the magnetic head unnecessarily by repeating the tape for cleaning the magnetic head whose length gradually becomes shorter and the tape for checking the image quality alternately.
It can be cleaned, and its practical effects are amazing.

[Brief explanation of drawings]

FIG. 1 is an external view of a conventional cleaning tape, and FIG. 2 is an external view of a cleaning tape according to an embodiment of the present invention. 1...Magnetic head cleaning tape, 2...
・Tape for checking image quality. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure

Claims (1)

[Claims] It is constructed by alternately and repeatedly providing at least one set of an image quality checking tape and a magnetic head cleaning tape, and is characterized in that the length of the magnetic head cleaning tape gradually becomes shorter from the tip side. cleaning tape.