JPS6349852Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention makes it more effective to clean the recording and playback heads, pinch rollers, etc. of cassette tape recorders and the like.

When a regular cassette tape recorder is repeatedly recorded and played back over a long period of time, dust tends to accumulate on the head.
It is known that high-fidelity recording and playback are inhibited. Therefore, a method has been adopted in which the head is cleaned by impregnating a cleaning tape with a cleaning liquid such as isopropyl alcohol and bringing the tape into contact with the head.

Conventionally, in such a wet type cleaner, when impregnating a tape with cleaning liquid, a cylindrical liquid supply part is provided, the tape is brought into contact with the liquid supply surface, and the entire surface of the tape passing through the liquid supply part is cleaned. It is made to be impregnated with liquid.

If you use this method, the cleaning tape will become more wet than necessary, and dirt will not be removed effectively.Furthermore, if you start operating the tape immediately after cleaning, the tape you are trying to record or play will be damaged by the wet head. Because of this, it was necessary to let it air dry for about 3 minutes.

The purpose of this invention is to eliminate the above drawbacks when impregnating the tape with cleaning liquid.
This is where the tape is separated into a wet area and a dry area.

This invention will be explained below based on examples.

As shown in Fig. 1, inside the main body case 1, which has almost the same standard as a Philips type compact cassette,
Two reels, a supply reel 2 and a take-up reel 7, are arranged, and both ends of a tape 3 made of nylon or acrylic hand-woven cloth are fixed to the two reels 2 and 7, respectively. In the middle of the tape 3 being wound from the supply reel 2 to the take-up reel 7, cylindrical liquid supply parts 4, 4 having a guide roller function are attached.

An opening 6 is provided between the liquid supply unit 4 attached to one side of the front side of the main body case 1 and the liquid supply unit 4 attached to the other side.
A recording/reproducing head 5 of an object to be cleaned 14 such as a tape recorder is in contact with the tape 3 being fed out during this period. The liquid supply section 4 consists of a base body 8, a felt 9, and a lid 8e, as shown in FIG. 2b.

On the base body 8, blocking walls 8a and presser pins 8b are alternately erected in the same direction as the width direction of the tape 3 along the outer periphery of the disc-shaped base bottom 8c. When installing the cylindrical felt 9 along the base 8, the blocking wall 8 is attached so that the felt 9 is not exposed in the part where the blocking wall 8a is located.
It is attached to the inside of the presser pin 8b, and conversely, it is attached to the outside of the presser pin 8b so that only the portion of the presser pin 8b where the felt 9 is exposed is exposed. The center of the lid 8e and the tip of a support 8d standing perpendicular to the bottom surface from the center of the base bottom 8c are connected, and the liquid supply part 4 can rotate around the support 8d. , also serves as a guide roller.

When cleaning the recording/reproducing head 5 of the tape recorder 14 using the cassette type cleaner constructed as described above, first, a cleaning liquid made of isopropyl alcohol or the like is injected into the felt 9 of the liquid supply section 4.

Thereafter, the rotating shafts 12, 12 of the object to be cleaned 14 are set in alignment with the rotating shaft insertion holes 13, 13 opened on the left and right sides of the upper surface of the main body case 1. When the object to be cleaned 14 is regenerated, the recording/reproducing head 5 moves toward the opening 6 and comes into contact with the tape 3.

At the same time, the rotating shaft 12 starts rotating, and the reels 2, 7
linked to. Tape 3 wound on supply reel 2
is wound up by the rotation of the take-up reel 7 via the liquid supply section 4, opening 6, etc.

When the tape 3 comes into contact with the liquid supply part 4, the felt 9
The cleaning liquid that was injected into the container will be impregnated. here,
Since the blocking wall 8a of the liquid supply part 4 blocks the felt 9 in the same direction as the width direction of the tape 3, the tape 3 contacts the felt 9 and has a portion 10 impregnated with cleaning liquid and a portion 10 of the felt 9, as shown in FIG. Portions 11 that do not contact tape 9 appear alternately in the running direction of tape 3.

The tape 3 separated into a wet part 10 and a dry part 11 is fed into an opening 6 and comes into contact with a recording/reproducing head 5. When the wet part 10 comes into contact with the head 5, the dirt adhering to the head 5 is softened by the effect of the cleaning liquid, making it easier to separate. Immediately after that, the drying section 11 comes into contact with the head 5 and wipes off the softened dirt.

This operation continues continuously until the tape operation stops. This method does not have a drying section 11,
It can clean dirt more effectively than conventional cleaning tapes that do not have wiping action.

In addition, after cleaning is completed, if you remove the main body case 1 and use a recording/playback tape, please remove the head 5.
Since the cleaning liquid is wiped off along with the dirt by the drying section 11, there is no need for additional drying time, and the device can be used immediately.

In addition, as another embodiment, as in the liquid supply part 15 shown in FIG. 4, the liquid supply part 15
In the tape 17 passing through, portions 19 in contact with the felt 18 and portions 20 not in contact with the felt 18 alternately appear slightly diagonally with respect to the tape width direction. With this method, when the tape 17 comes into contact with the head 5, the wet area 1
9 and the dry section 20 gradually move, so that the wet section 1
9 and the drying section 20 become smooth, and the difference in sliding friction between the two does not appear in an abrupt and intermittent manner, making it possible to improve the sticking of the tape 17.

As a similar example, FIG. 5 shows a cylindrical base 21
2 is a perspective view of a liquid supply section 23 in which ten or more holes with an inner diameter of about 1 mm are evenly drilled on the outer periphery of the base body 21 and a felt 22 is inscribed inside the base body 21. According to this embodiment, a wet portion 25 appears in a polka dot pattern on the tape 24 that has passed through the liquid supply portion 23. In this case as well, the change in the wet area 25 and dry area 26 when the tape 24 comes into contact with the head 5 is not extreme, and the difference in sliding friction between the two does not appear in sharp, intermittent shapes.
The tightness between the tape 24 and the head 5 can be improved.

This invention can also be used in wet-type cleaning tapes that incorporate a demagnetizer function using permanent magnets or electronic circuits, and the liquid supply section of this invention can also be incorporated into wet-type cleaning tapes for 8 tracks. It can also be used.

As described above, according to the cassette type cleaner of this invention, a liquid supply surface capable of supplying cleaning liquid to the tape 3 is partially formed on the circumferential surface of the liquid supply part 4, and
The liquid supply part 4 is rotated by the running of the cleaning tape 3 so that the liquid supply surface and the non-liquid supply surface to the cleaning tape 3 are alternately opposed to the tape 3, so that the tape 3 passing through the liquid supply part 4 becomes a wet part. By dividing it into a drying section 10 and a drying section 11,
Dirt on the head 5, etc. can be effectively removed, and the head 5 will not become unnecessarily wet when cleaning is finished, so you can immediately start recording, playback, etc. without having to take the time to dry the head 5 again after cleaning. operations can be performed.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of a cassette-type cleaner according to the present invention, FIG. 2a is a partially cutaway perspective view illustrating the structure of the liquid supply section, FIG. 2b is a partially exploded perspective view of the liquid supply section, and FIG. Figure 2c is a front view showing the state of the tape after passing through the liquid supply section, Figure 3 is a perspective view showing the cassette type cleaner according to the present invention actually installed in a cassette tape recorder, and Figure 4. , FIG. 5 is a perspective view showing another embodiment. DESCRIPTION OF SYMBOLS 1...Main body case, 3...Cleaning tape, 4...Liquid supply part, 6...Opening part, 10...Wetting part, 11...Drying part.

Claims (1)

[Scope of utility model registration request] In a cassette type cleaner in which a cleaning tape 3 is wound along a liquid supply part 4 in a case 1 having an opening 6 on the front surface, cleaning liquid can be supplied to the tape 3 on the circumferential surface of the liquid supply part 4. While partially forming a liquid supply surface, the liquid supply part 4 is rotated by the running of the cleaning tape 3 so that a liquid supply surface and a non-liquid supply surface for the cleaning tape 3 are alternately opposed to the tape 3, A cassette type cleaner in which a tape 3 passing through a liquid supply section 4 is divided into a wet section 10 and a dry section 11.