JPH0229528Y2 - - 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 a magnetic tape guiding capstan and pinch roller built into a tape recorder, etc. The cleaning tape is made to meander vertically while in sliding contact with the tape feeding capstan and pinch roller, thereby completely cleaning and removing dust adhering to the capstan and pinch roller.

The capstans and pinch rollers that guide the running of the magnetic tape may collect dust, such as magnetic powder or dust coated on the magnetic tape, due to long-term use, and this may simply interfere with the feeding of the magnetic tape. This also had a negative effect on the characteristics of the magnetic tape. It is conceivable to remove the dust adhering to the capstan and pinch rollers using a well-known cassette-type cleaning device that incorporates a cleaning tape into the cassette, but the height of the capstan and pinch rollers is too high for this type of cleaning device. This type of cleaning device cannot clean and remove all the dust adhering to the capstan because it is considerably larger than the width of the built-in cleaning tape and the dust adheres to the entire length of the tape. Ta.

Therefore, the present invention was devised for the purpose of providing a device for completely cleaning and removing dust adhering to capstans and pinch rollers. is placed in the cassette, and the cleaning tape is made to slide in contact with the capstan and the pinch roller and run in a meandering manner in the vertical direction.In this way, the cleaning tape is attached over the entire length of the capstan and the pinch roller. The present invention is designed to completely and effectively clean and remove dust and dirt, and at the same time to clean the pinch roller that comes into contact with the capstan.

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 a partial perspective view. 1 is a cassette formed in the same size and shape as a Phillips-type compact cassette, and a magnetic An insertion window 8 of the head 7 is provided with pinch roller insertion holes 12 on both sides of the insertion window 8, respectively. Furthermore, a feed reel 2 and a take-up reel 3 are rotatably arranged inside the cassette 1, and cleaning tape is attached to both reels 2 and 3, so that the cassette 1 can be connected to a tape recorder (not shown).
When the cleaning tape 4 is set and the play button is pressed, the take-up reel 3 is driven by the tape drive motor in the tape recorder, and the cleaning tape 4 is fed.

The cleaning tape 4 is for cleaning and removing dust adhering to the capstan and the pinch roller by running in sliding contact with the capstan and the pinch roller, as will be described in detail later. It is made of a material with a rough surface, such as plain-woven synthetic fibers, cloth tape, or nylon tape or polyethylene film tape with felt or the like sprayed onto the surface.

Reference numeral 5 denotes a guide roller for guiding the cleaning tape 4, which is provided adjacent to the insertion window 8 of the magnetic head 7 and near the insertion hole 11 of the capstan 10, and is connected to a mounting rod 6 consisting of a pair of spring rods 6a, 6a. It is supported so that it can move forward and backward and can rotate freely. FIG. 3 shows a cross-sectional view of the guide roller 5. The guide roller 5 mainly has a hollow drum 5a, and the circumferential surface of the drum 5a is made of a water-retentive material such as felt or flocked band. A cleaning body 5b is attached for cleaning the magnetic head 8, and a plurality of small holes 5c are formed on the circumferential surface of the cleaning body 5b. Guide discs 5d ₁ and 5d ₂ are attached to the top and bottom of the drum 5a so that their outer peripheral edges slightly protrude from the drum 5a, and the cleaning tape 4 is attached to both discs 5d ₁ and 5d ₂ . It travels around the back surface of the drum 5a while being guided by both upper and lower edges.

Each of the discs 5d ₁ and 5d ₂ is attached to the drum 5a with a slight inclination angle θ, and as a result, as the guide roller 5 rotates, the cleaning tape 4 is caused to meander in the vertical direction, as will be described later. This improves the cleaning effect of capstans and pinch rollers. Also, both upper and lower discs 5d ₁ , 5d ₂
Rotating shafts 5e ₁ and 5e ₂ are respectively protruded from the center of the outer surface, and the mounting rod 6 is connected to each rotating shaft 5e ₁ and 5e 2 .
e ₂ and elastically supports the guide roller 5, and furthermore, the upper rotating shaft 5e ₁ and the disc 5d ₁ are provided with a cleaning liquid injection hole 5f that passes through them and communicates with the inside of the hollow drum 5a. It is formed.

The guide roller 5 is configured as described above, and the cleaning liquid 9 is supplied to the drum 5 from the injection hole 5f.
When injected into the hole 5, the cleaning liquid enters the small hole 5.
c and infiltrate into the cleaning body 5b attached to the peripheral surface of the drum 5a.

12 is an insertion hole for the pinch roller 13, 14, 15
is a guide roller for the cleaning tape 4.

This device has the above-mentioned configuration, and its handling operation will be explained next.

The cassette 1 is set in a tape recorder (not shown), the play button is pressed, the magnetic head 7 is inserted into the cassette 1 through the insertion window 8, and the front surface of the magnetic head 7 is brought into contact with the guide roller 5. Then, the tape drive motor starts operating, the take-up reel 3 starts rotating, and the cleaning tape 4 starts to be fed. In addition, the capstan 10 and pinch roller 13 inserted into the respective insertion holes 11 and 12 also begin to rotate, and the cleaning tape 4 runs while slidingly contacting between both the capstan 10 and the pinch roller 13. Scrub and remove the dust that adheres to the surface.

Here, the cleaning tape 4 is attached to the guide roller 1.
4, the cleaning tape 4 goes around the guide roller 5, goes around the guide roller 15, and is taken up on the take-up reel 3. As mentioned above, both the upper and lower edges of the cleaning tape 4 on the guide roller 5 Since the discs 5d ₁ and 5d ₂ that guide the cleaning tape 4 are slightly inclined, when the cleaning tape 4 goes around the guide roller 5, it is fed in a meandering manner in the vertical direction with the rotation of the guide roller 5 (see Fig. 4). reference). Therefore,
The cleaning tape 4 runs in sliding contact with the capstan 10 and the pinch roller 13 while meandering in the vertical direction.
The dust adhering to the circumferential surface of the cleaning tape 3 over a wider range than the width of the cleaning tape 4 is cleaned and removed. In addition, since the vertical movement of the cleaning tape 4 has an extremely large effect of removing dust by scraping, the capstan 1
Dust firmly attached to the roller 0 and the pinch roller 13 is also reliably removed and cleaned. Also, cleaning liquid 9 stored in advance in the drum 5a of the guide roller 5
The dust that gradually infiltrates the cleaning body 5b through the small holes 5c and adheres to the magnetic head 7 in contact with the drum 5a is also wiped away by the rotation of the guide roller 5. As described above, according to this device, dust that adheres to the circumferential surface of the capstan 10 over a wider area than the width of the cleaning tape 4 is effectively and completely removed, and at the same time, the dust that adheres to the circumferential surface of the capstan 10 over an area wider than the width of the cleaning tape 4 is effectively and completely removed. The head 7 is also cleaned.

FIG. 5 shows another embodiment of the present invention, in which guide rollers 21 are provided at the four corners of the cassette 20.
and guide rollers 22, 23, 24, and an endless dry cleaning tape 25.
travels around between the rollers 21 to 24. Of the rollers 21 to 24, the guide roller 21 is located closest to the capstan insertion hole 26. As shown in FIG. 6, the guide roller 21 has a drum 21a as its main body, and above and below the drum 21a there are guiding discs 21b ₁ and 21b ₂ that guide the upper and lower edges of the cleaning tape 25, with their outer peripheral edges extending from the drum 21a. It is provided to protrude slightly, and each disc 21
b ₁ and 21b ₂ are slightly inclined at the inclination angle θ and the drum 2
It is attached to 1a. 21c ₁ and 21c ₂ are rotary shafts protruding from the center of the outer surface of each disk 21b ₁ and 21b ₂ , respectively, and 28 is a pinch roller.

In the above configuration, when the cassette 20 is set in a tape recorder (not shown) and the play button is pressed, the cleaning tape 25 is guided by both discs 21b ₁ and 21b ₂ of the guide roller 21 at its upper and lower edges, and moves in the vertical direction. It runs in a meandering manner to clean and remove dust adhering to the capstan 10 and pinch roller 13. At the same time, the magnetic head 7 inserted into the cassette 20 slides through the insertion window 27 and is cleaned at the same time.

The present invention is not limited to the above-mentioned embodiments, but may include, for example, a degaussing device that generates a gradually demagnetizing magnetic field in the degaussing head to eliminate the magnetization of the magnetic head. Good too.

As explained above, in the apparatus according to the present invention, the cleaning tape 4 is disposed in the cassette 1, and the guide member 5 is installed in the cassette 1 to meander and guide the cleaning tape 4 in the vertical direction.
Since the capstan 10
It is possible to completely 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 a perspective view of the same, FIG. 3 is a sectional view of the guide roller,
FIG. 4 is a partial front view, and FIGS. 5 and 6 are a plan view and a front view of a guide roller of another embodiment of the present invention, respectively. 1, 20...Cassette, 4, 25...Cleaning tape, 5, 21...Guide roller, 10...
...Capstan, 11, 26...Capstan insertion hole.

Claims (1)

[Scope of utility model registration request] A cassette type cleaning device in which a cleaning tape 4 is disposed within a cassette 1, and a guide member 5 is provided within the cassette 1 to guide the cleaning tape 4 in a meandering manner in the vertical direction.