JPH0411210Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Objective of the Invention] (Field of Industrial Application) The present invention relates to a cleaning cassette for cleaning the magnetic head, capstan, and pinch roller of a cassette tape recorder or a cassette tape player.

(Conventional technology) As a conventional cleaning cassette,
There is one shown in the -93112 publication.

This cleaning cassette stores cleaning tape for the recording/playback head and erasing head in a case that has the same shape as a normal cassette tape cassette for recording/playback through a pair of reels and a plurality of guide pins. It is provided so that it can travel like a recording/playback tape, and is also provided with a cleaning pad for the capstan and a cleaning pad for the pinch roller.

(Problems to be Solved by the Invention) The conventional cleaning cassette described above guides the cleaning tape to the recording/playback head and the erasing head using a plurality of guide pins, and the cleaning tape is brought into contact with the recording/playback head and the erasing head by its tension. I was letting it happen.

Therefore, there was a problem in that the plurality of guide pins became a load on the drive system of the cassette tape recorder, and the contact of the cleaning tape with the recording/reproducing head was weak, resulting in a problem in the cleaning effect.

The present invention has been devised in view of these points, and aims to reduce the load on the drive system of the cassette tape recorder and to improve the cleaning effect on the recording/playback head.

[Structure of the idea]

(Means for Solving the Problems) The present invention provides a case 1 having the same shape as a cassette of a cassette tape, and a cleaning tape 2 for a recording/playback head 21 and an erasing head 22 via a pair of reels 3 and a guide member 4. The cleaning cassette is provided so as to be runnable like a cassette tape, and is provided with a cleaning pad 5 for the capstan 23 and a cleaning pad 6 for the pinch roller 24. A rotatable pressure roller 8 that abuts the tape 2, an elastic member 9 that elastically urges the pressure roller 8 toward the recording/playback head 21, and a cleaning member located on both sides of the pressure roller 8. It is equipped with a guide roller 10 that causes the tape 2 to meander toward the recording/reproducing head 21 and the erasing head 22.

(Function) The cleaning cassette of the present invention has an elastic member 9
The press roller 8 presses the rotatable pressure roller 8 to bring the cleaning tape 2 into contact with the recording/playback head 21, and the guide roller 10 pushes the cleaning tape 2 against the recording/playback head 2.
1 and the erase head 22, and the cleaning pads 5 and 6 are brought into contact with the capstan 23 and the pinch roller 24.

(Embodiment) An embodiment of the cleaning cassette of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a case, which is made of synthetic resin and has the same shape as a cassette of a normal recording/playback cassette tape. Inside the case, a cleaning tape 2 made of woven or non-woven fabric is installed as a pair of reels 3 and a pair of guide members. via the guide lever 4 of
It is provided so that it can run like a normal cassette tape for recording and playback.

That is, the cleaning tape 2 has both ends attached to a pair of reels 3, which are rotatably provided at predetermined positions in the case 1 and can be driven from the outside through openings 1a on both sides of the case 1. After being fixed, it is wound around a reel 3, and its middle part is hooked on a pair of guide levers 4 to open each opening 1b, 1c, 1d, 1e at one end (lower end in the figure) of the case 1.
are guided along.

Each of the guide levers 4 is made of elastic synthetic resin and has a substantially J-shape as a whole, and the T-shaped portion at the base end thereof is fixed to the case 1, and the tip thereof is located at the middle of the cleaning tape 2. The structure is adapted to urge the portion outwardly (downward in the drawing).

Further, a cleaning pad 5 made of felt is disposed in each opening 1c, located inside the tip of each guide lever 4, that is, facing the inner surface of the cleaning tape 2, and attached to the case 1. In addition to being fixed, cleaning pads 6 made of felt are disposed in each of the openings 1b, located outside the tip of each guide lever 4, that is, outside the cleaning tape 2. It is supported by the case 1 via a pad lever 7.

Each of the pad levers 7 is made of elastic synthetic resin and has a substantially U-shape as a whole, and the T-shaped portion at the base thereof is fixed to the case 1, and the C-shaped portion at the tip is used to hold the cleaning pad. Do 6
The cleaning pad 6 is supported to urge the cleaning pad 6 outward (downward in the figure).

Further, a pressure roller 8 made of felt is disposed in the opening 1e, located between the cleaning pads 6, that is, facing the inner surface of the cleaning tape 2, and the pressure roller 8 is made of an elastic material. The roller lever 9 is rotatably supported at the tip of a roller lever 9, and is supported by the case 1 via the roller lever 9.

Each of the roller levers 9 is formed generally into an I-shape made of elastic synthetic resin, and the T-shaped portion at the base thereof is fixed to the case 1, and the circular portion at one side of the tip thereof is fixed to the case 1. The pressure roller 8 is rotatably supported and elastically biased outward (downward in the figure), that is, in the inner direction of the tape 2 .

Further, guide rollers 10 are disposed on both sides of the pressing roller 8, that is, facing the inner surface of the cleaning tape 2, and between the opening 1e and each opening 1d, and are rotated around the case 1. Supported for free movement.

Further, a supply pad 11 made of felt is provided in the case 1 and located outside each reel 3, and each supply pad 11 is provided with a supply pad 11 made of felt.
A guide roller 12 is disposed between each reel 3 and each guide lever 4, and a cleaning tape 2 between each reel 3 and each guide lever 4 is applied to each supply pad 11 and each guide roller 12. .

An opening 1f for each of the supply pads 11 is formed on one side of the case 1.

Note that 21 is a recording/playback head, 22 is an erasing head, 23 is a capstan, and 24 is a pinch roller.

Next, the use of this cleaning cassette will be explained.

In the explanation, we will use an example that has the most cleaning parts, that is, an auto-reverse cassette tape recorder that is a double capstan type with two sets of capstans 23 and pinch rollers 24, and also has two erasing heads 22. I will explain when to use it.

First, a cleaning liquid is injected into each supply pad 11 from each opening 1f of the case 1, and then the cleaning cassette is mounted on a cassette tape recorder in the same way as a normal cassette tape for recording and playback.

Then, a pair of reel stands (not shown) on the tape recorder side engage with each reel 3 through each opening 1a of the case 1, and two capstans 23 on the tape recorder side engage each cleaning through each opening 1c. Pad 5 and cleaning tape 2
It comes into contact with each cleaning pad 5 between the cleaning pads 5 and 5.

At this time, each guide lever 4 ensures a space between each cleaning pad 5 and the cleaning tape 2, so each capstan 23 is securely inserted between each cleaning pad 5 and cleaning tape 2. It's becoming like that.

Then, the cassette tape recorder is put into recording or playback mode.

Then, one pinch roller 24 on the tape recorder side advances to the cleaning tape 2 and cleaning pad 6 through the opening 1b, pinching the cleaning tape 2 between it and the capstan 23, and pinching the cleaning tape 2 through the cleaning pad 6. The cleaning pad 6 elastically abuts against the pinch roller 24 due to the restoring force of the pad lever 7 as a reaction.

At the same time, the recording/reproducing head 21 and the two erasing heads 22 advance onto the cleaning tape 2 through the opening 1e and each opening 1d, and the recording/reproducing head 21 passes through the cleaning tape 2 and the pressing roller 8 onto the roller lever 9. The cleaning tape 2 is elastically deformed, and the pressure roller 8 is elastically urged toward the recording/playback head 21 by the restoring force of the roller lever 9 as a reaction, and the pressure roller 8 brings the cleaning tape 2 into contact with the recording/playback head 21. .

In addition, in this state, the cleaning tape 2 is meandered in the direction of the recording/playback head 21 and each erasing head 22 by each guide roller 10, and the cleaning tape 2 is moved toward the recording/playback head 21 and each erasing head 2.
Make face-to-face contact with 2.

Then, the pinch roller 24, the recording/playback head 2
1 and each erasing head 22 advance, the reel stand and capstan 23 (not shown) on the cassette tape recorder side are driven in a predetermined direction, and the cleaning tape 2 is transferred from one reel 3 to the other reel 3.
the cleaning tape 2 is moved to the supply pad 1.
The cleaning tape 2 impregnated with the cleaning liquid is supplied to the capstan 23, the erasing head 22, and the recording/playback head 2.
1. After the erasing head 22, capstan 23, and pinch roller 24 in the advanced state are moved, and the movement of the cleaning tape 2 from one side to the other is completed, the cassette tape recorder performs an auto-reverse operation to move the cleaning tape 2. As the direction was reversed, one pinch roller 2 that had moved forward
4 retreats and the other pinch roller 23 advances.

Therefore, even in the case of an auto-reverse cassette tape recorder, which has the largest number of cleaning parts, all the cleaning parts can be cleaned by reciprocating the cleaning tape 2 in one cleaning operation, and the recording/playback head 21 The two erasing heads 22 are cleaned by sliding contact with the cleaning tape 2 impregnated with cleaning liquid, and the two capstans 23
The two pinch rollers 24 are coated with the cleaning liquid by the cleaning tape 2 impregnated with the cleaning liquid, and then applied to the cleaning pad 5.
and 6 for cleaning.

At this time, the pressure roller 8 is urged by the roller lever 9, and the cleaning tape 2 is brought into contact with the recording/playback head 21 by the pressure roller 8, so that the strength of the contact between the recording/playback head 21 and the cleaning tape 2 is increased. Since the cleaning tape 2 is brought into surface contact with the recording/reproducing head 21 and the erasing head 22 by the guide roller 10, the cleaning range of the recording/reproducing head 21 and the erasing head 22 can be widened.
Since the pressure roller 8 and the guide roller 10 are rotatable, they do not act as resistance to the movement of the cleaning tape 2. As a result, the load on the drive system of the cassette tape recorder is reduced, and the recording/playback head 21 and erasing head are 22 cleaning effect can be enhanced.

The above explanation is based on an example in which there are the most cleaning parts, that is, an auto-reverse cassette tape recorder that is a double capstan type with two sets of capstans 23 and pinch rollers 24, and also has two erasing heads 22. Of course, there are other types as well, such as a combination head that integrally combines a recording/playback head and an erasing head, and a rotary head type that rotates 180 degrees in accordance with the running direction of the tape. It can also be used in an auto-reverse cassette tape recorder, a cassette tape recorder without an auto-reverse function, or a playback-only cassette tape player.

Further, although the above-described embodiment is an example applied to a wet type cleaning cassette that uses a cleaning liquid, it can also be applied to a dry type cleaning cassette that does not use a cleaning liquid.

[Effect of idea]

As described above, according to the present invention, the pressure roller is urged by the elastic member and the pressure roller brings the cleaning tape into contact with the recording/playback head, thereby ensuring the strength of the contact between the recording/playback head and the cleaning tape. Since the cleaning tape is brought into surface contact with the recording/playback head and the erasing head by the guide roller, the cleaning range of the recording/playback head and the erasing head can be widened, and the pressure roller and guide roller are rotatable. There is no resistance to the movement of the cleaning tape, and as a result, the load on the drive system of the cassette tape recorder can be reduced and the head cleaning effect can be enhanced.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view showing an embodiment of the cleaning cassette of the present invention, and FIG. 2 is an explanatory view of its operation. 1...Case, 2...Cleaning tape, 3
... Reel, 4 ... Guide lever as a guide member, 5, 6 ... Cleaning pad, 8 ... Pressing roller, 9 ... Roller lever as elastic member, 10 ... Guide roller, 21 ... Recording playback Head, 22... Erasing head, 23... Capstan, 24... Pinch roller.

Claims (1)

[Scope of Claim for Utility Model Registration] A case having the same shape as a cassette tape is provided with a cleaning tape for a recording/playback head and an erasing head so as to be runnable in the same way as a cassette tape via a pair of reels and a guide member. , a cleaning cassette provided with a cleaning pad for the capstan and a cleaning pad for the pinch roller, a rotatable pressure roller that brings the cleaning tape into contact with the recording/playback head, and a rotatable pressure roller that contacts the recording/playback head. A cleaning cassette comprising: an elastic member elastically biasing toward the head; and guide rollers positioned on both sides of the pressure roller to meander the cleaning tape toward the recording/reproducing head and the erasing head. .