JPH0366723B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming an endless cleaning tape for cleaning a magnetic head of a tape recorder, a pinch roller, etc., and is used to reduce the thickness of the joint part of the cleaning tape and eliminate the difference in level. After the weft threads at both ends of the cleaning tape are partially removed, the ends are overlapped and joined with adhesive.

2. Description of the Related Art A cassette-type cleaning device is known as a device that can easily clean a magnetic head, etc., in which an endless cleaning tape is housed in a cassette case. This type of cleaning device feeds the cleaning tape by setting a cassette case in a tape recorder or the like and pressing the play button to drive and rotate the pinch roller and capstan.
Conventional endless cleaning tapes are designed to clean dust adhering to the surfaces of capstans, etc., and as shown in FIG. Since the ends were bonded together using adhesive 11, the thickness of the joint 12 was more than twice that of the other parts, and there was a difference in level that was equal to or slightly larger than the thickness of the cleaning tape 10. Ta. Therefore, when the joint 12 comes between the pinch roller and the capstan, the stepped portion hits the pinch roller and the capstan, and the pinch roller and capstan rotate idly while contacting the stepped portion, making it impossible to feed the cleaning tape. Something happened. Particularly in the case of small portable playback devices, the torque of the tape drive motor is generally very small, so even if there is a slight step in the cleaning tape, the cleaning tape tends to be unable to be fed.

Therefore, the present invention was made for the purpose of providing a method for forming an endless cleaning tape that reduces the thickness of the joint part and eliminates the step difference. After that, the ends are overlapped and joined with an adhesive, preferably a thermocompression type sheet adhesive that does not cause an increase in the volume of the joint.

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

In Fig. 1, reference numeral 1 denotes a cleaning tape with ends, which is formed by interweaving warp threads 1a and weft threads b, and both ends a, a are partially wefted by the same length of weft threads 1b. removed, warp 1
It is only a.

FIG. 2 is a side view of both ends a, a of the cleaning tape 1 being joined together, in which the ends a, a of the cleaning tape 1 are overlapped with a thermocompression type sheet adhesive 2 in between, An electric iron 3 is pressed onto it to melt the adhesive 2, and the warp yarns 1a at both ends a and a are joined together to form an endless tape 1' (see FIG. 3). As shown in FIG. 2, the length of the adhesive 2 used is slightly longer than the length of the ends a, a, and when the adhesive 2 is melted and solidified, the end of the weft thread 1b is It is more secure and therefore the weft thread 1b does not unravel from the end. The ends a, a of the cleaning tape 1 bonded in this way are extremely firmly bonded to each other, and the thickness of the bonded portion is the same as that of the weft thread 1b.
Since the above-mentioned conventional joint part 12 is removed,
It is much thinner than the thickness of , and there are almost no steps. In particular, when the thermocompression type sheet adhesive 2 is used as the adhesive as described above, the adhesive 2 melts and permeates into the warp threads 1a, so the volume of the joint does not substantially increase and the joint By making the thickness of the non-bonded portion almost equal to the thickness of the non-bonded portion, the difference in level can be almost completely eliminated.

This method of joining cleaning tapes can be applied to either dry cleaning tapes or wet cleaning tapes, and can be applied to cleaning tapes disposed in flip-type compact cassettes as well as cleaning tapes disposed in 8-track type cassettes. This can also be applied to tape.

As explained above, the method for forming the endless cleaning tape 1' according to the present invention involves partially removing the weft threads 1b at both ends a, a of the cleaning tape 1 with ends, and then connecting the ends a, a to each other. Since the ends a and a are overlapped and joined to each other with the adhesive 2, the thickness of the joint can be reduced and the difference in level can be eliminated.

[Brief explanation of drawings]

The figure shows an embodiment of the present invention.
2 is a side view of the cleaning tape during bonding, FIG. 3 is a side view of the bonded portion of the endless cleaning tape, and FIG. 4 is a side view of the bonded portion of a conventional cleaning tape. DESCRIPTION OF SYMBOLS 1... Cleaning tape, 1'... Endless cleaning tape, 1b... Weft, 2... Thermocompression type sheet adhesive, a... End portion.

Claims (1)

[Scope of Claims] 1. In forming the endless cleaning tape 1', after partially removing the weft thread 1b of both ends a, a of the cleaning tape 1 with ends, the ends a, a are overlapped with each other. , a method of forming an endless cleaning tape for a magnetic head in which end portions a and a are joined together with an adhesive 2. 2. The method for forming an endless cleaning tape for a magnetic head according to claim 1, wherein a thermocompression type sheet adhesive is used as the adhesive 2.