JPH0110757Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cassette-type cleaning device for cleaning and removing dust adhering to the magnetic head, pinch roller, capstan, etc. built into a tape recorder, etc., and in particular, to remove dust adhering to the pinch roller. It is designed to effectively clean and remove.

The magnetic head, pinch roller, capstan, etc. built into a tape recorder, etc., may attract dust such as magnetic powder or dust coated on the magnetic tape due to long-term use, which may adversely affect the characteristics and feeding of the magnetic tape. Start giving. As a device for cleaning and removing dust adhering to a magnetic head, etc., a wet or dry cleaning tape built into a cassette case is brought into sliding contact with an object to be cleaned, such as a magnetic head or a pinch roller. Cassette-type cleaning devices that clean and remove dust adhering to these devices are widely used. By the way, among these objects to be cleaned, the magnetic head and capstan are made of hard materials such as metal, but the pinch roller is generally made of slightly softer rubber or synthetic resin, and its outer peripheral surface is also quite wide. Therefore, dust tends to adhere to the pinch roller in larger quantities than the magnetic head or capstan.If dust adheres to the pinch roller, it can damage the surface of the magnetic tape or interfere with the feeding of the magnetic tape, so dust that adheres to the pinch roller should be cleaned regularly. However, since the cleaning tape used in conventional cassette-type cleaning devices of this type only lightly slides against the outer circumferential surface of the pinch roller, it is difficult to thoroughly clean and remove dust adhering to the pinch roller. It wasn't something I could do.

The present invention has been devised in consideration of these points, and includes a cleaning roller that is rotatably provided in a cassette case in which a cleaning tape is housed, and that slides into contact with the outer peripheral surface of the pinch roller and the front surface of the cleaning tape. In this way, dust adhering to the outer peripheral surface of the pinch roller can be effectively cleaned and removed by the cleaning roller.

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

Fig. 1 is a plan view of the cassette-type cleaning device, and Fig. 2 is an exploded perspective view of the main parts, in which 1 is a cassette case, inside which a feed reel 2 and a take-up reel 3 are disposed; 2,
3 has a cleaning tape 4 attached thereto.
Reference numerals 5 and 6 designate rollers for guiding the cleaning tape 4 provided at the corners of the cassette case 1. 7
9 is an insertion window for the magnetic head 8 formed at the center of the front surface of the cassette case 1; 9 is an insertion window for the pinch roller 10 formed at the front side of the cassette case 1;
Reference numeral 1 denotes an insertion hole for a capstan 12 formed slightly inward of the insertion window 9, and the cassette case 1 having such a structure has the same size and shape as a Phillips-type compact cassette. Reference numeral 13 denotes a cleaning roller for the pinch roller 10, which is made of a material with a rough surface such as felt, and is provided near the pinch roller insertion window 9 so as to come into sliding contact with the outer peripheral surface of the pinch roller 10. It is arranged so that it can rotate freely. The cleaning roller 13 is also in sliding contact with the front surface of the cleaning tape 4, and the cleaning tape 4 runs along the capstan 12 and the cleaning roller 13 while detouring in an approximately S-shape (see Fig. 3). At this time, the cleaning roller 13 that comes into sliding contact with the front surface of the cleaning tape 4 rotates in the opposite direction to the pinch roller 10 while being in sliding contact with the pinch roller 10 to remove dust adhering to the pinch roller 10.

In FIG. 2, 14 and 15 are the pinch roller insertion windows 9 of the upper cover 1a and lower cover 1b of the cassette case 1.
A bearing portion that rotatably supports the rotating shaft 13a of the cleaning roller 13 formed near the cleaning roller 13,
Elongated bearing holes 14a, 15a are formed in both the bearing parts 14, 15 so that the cleaning roller 13 can move in the radial direction or substantially radial direction of the pinch roller 10.

This device is constructed as described above, and when the cassette case 1 is set in a tape recorder (not shown) and the play button is pressed, the magnetic head 8 enters the cassette case 1 through the insertion window 7 and inserts the cleaning tape 4. The pinch roller 10 also enters the cassette case 1 through the insertion window 9 and comes into contact with the front surface of the cleaning tape 4. At the same time, the winding reel 3 and pinch roller 1 are
0, the capstan 12 starts rotating and feeding of the cleaning tape 4 is started, and the cleaning tape 4 cleans the dust adhering to the magnetic head 8, the pinch roller 10, and the capstan 12.

Now, as the cleaning tape 4 is fed, the cleaning roller 13 slidingly contacts the front surface of the cleaning tape 4 as described above, and the pinch roller 10
The pinch roller 10 rotates in the opposite direction while in sliding contact with the pinch roller 10 to clean and remove dust adhering to the outer peripheral surface of the pinch roller 10. At this time, since the cleaning roller 13 is disposed so as to be movable in the radial direction of the pinch roller 10 as described above, it is constantly brought into elastic contact with the outer peripheral surface of the pinch roller 10 by the tension of the cleaning tape 4, as shown in FIG. Dust adhering to the pinch roller 10 is cleaned and removed while vibrating little by little in the direction of the arrow. Further, dust adhering to the front surface of the cleaning tape 4 is also cleaned and removed by the cleaning roller 13 at the same time. As described above, according to the present device, the pinch roller 10 can be cleaned effectively. Note that the sliding force between the cleaning roller 13 and the pinch roller 10 is
When the sliding contact force between the cleaning roller 13 and the cleaning tape 4 is greater, the cleaning roller 13 rotates in the same direction as the pinch roller 10, but in this case as well, there is a relative relationship between the peripheral surfaces of the cleaning roller and the pinch roller 10. Since a speed difference is generated, the pinch roller 10 is cleaned by the sliding friction force.

FIG. 4 shows another embodiment of the cleaning roller 16, which is made of a hard material such as synthetic resin or metal, and has minute irregularities on its outer peripheral surface. (knurled eyes) are formed. According to this cleaning roller 16,
When rotating in sliding contact with the pinch roller 10 and the cleaning tape 4, dust adhering to them can be effectively rubbed and removed.

The present invention can be further modified in various ways,
For example, the cleaning tape 4 may be either a dry tape or a wet tape, and can be applied to either an end tape or an endless tape. Further, in the case of a wet tape, the cleaning roller 13 may be replenished with cleaning liquid and may be impregnated with it, and it is also applicable to a type in which a demagnetizing head for the magnetic head 8 is built in the cassette case in addition to the cleaning tape. .

As explained above, the cassette-type cleaning device according to the present invention includes the outer peripheral surface of the pinch roller 10 and the cleaning tape 4 in the cassette case 1.
Since the cleaning roller 13 that comes into sliding contact with the front surface of the pinch roller 10 is rotatably provided, the pinch roller 10
It is possible to effectively clean and remove dust adhering to the surface.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is a plan view of the cassette-type cleaning device.
The figure is an exploded perspective view of the main part, Figure 3 is a plan view of the main part, and Figure 4 is a plan view of the main part.
The figure is a perspective view of a cleaning roller of another embodiment. 1... Cassette case, 4... Cleaning tape, 10... Pinch roller, 13, 16... Cleaning roller.

Claims (1)

[Scope of utility model registration request] This cassette type cleaning device is provided with a cleaning roller 13 which is rotatably provided in a cassette case 1 in which a cleaning tape 4 is housed, and which is in sliding contact with the outer peripheral surface of a pinch roller 10 and the front surface of the cleaning tape 4.