JPS63122082A - Tape cleaner - Google Patents

Abstract

PURPOSE:To obtain a high-quality soft tape by cleaning the recording surfaces of two pieces of tapes to be cleaned in one time by effectively making use of both front and rear surfaces of one piece of cleaning tape. CONSTITUTION:A master tape 1 and a slave tape 2 are run respectively in the directions of arrows (a), (b), during which time, a winding reel 14 is driven in rotation intermittently in the direction of arrow (g) by a motor spindle 31 driven by a pulse motor 30. Accordingly, a cleaning tape 12 is drawn intermittently from a feeding reel 13 for an arbitrary length each time sequentially, and further, the drawn tape 12 proceeds sequentially in the directions of arrows (d)-(e) and is wound around the winding reel 14 intermittently for the said arbitrary lengths sequentially. At the position of the peripheral surface 15a part of a tape guide 15, one cleaning surface 12a of the tape 12 is made contact the recording surface 1a of the master tape 1 to clean it, an simultaneously with this, at the position of the peripheral surface 16a part of the other tape guide 16, the other cleaning surface 12a of the tape 12 is made contact the recording surface 2a of the slave tape 2 to clean the recording surface 2a.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a magnetic recording and reproducing apparatus that uses magnetic tape, a high-speed magnetic tape printer (magnetic field transfer device), etc. The present invention relates to a tape cleaning device using a commercial tape.

[Summary of the invention]

This invention provides a tape cleaning device that uses a cleaning tape to clean a tape to be cleaned, such as a magnetic tape.
By using a cleaning tape for books, the device can be made compact and the structure can be simplified.

[Conventional technology]

Conventionally, for example, a tape cleaning device has been used in a high-speed magnetic tape printer that produces soft tape (magnetic tape on which signals are transferred by a magnetic field) for video and audio.

And, the conventional tape cleaning device of this kind is '?
Of the star tape (magnetic tape on which signals to be transferred are recorded) and slave tape (magnetic tape on which signals are transferred by magnetic field), only the recording surface (magnetic surface) of the master tape is cleaned with a cleaning tape. There is something like this.

[Problem that the invention seeks to solve]

However, with this method of cleaning only the recording surface of the master tape, dropouts occur if dust adheres to the recording surface (magnetic surface) of the slave tape, making it impossible to produce high-quality soft tapes. .

However, in the past, if you wanted to clean the recording surface of a slave tape, you had to use two cleaning tapes, and the tape cleaning device was large and had a complicated structure, making it difficult to assemble, adjust and Is it stupid that maintenance is troublesome?

The cost will be significantly higher.

This invention was invented to solve these problems, and aims to provide a tape cleaning device that can simultaneously clean two tapes to be cleaned using one cleaning tape. It is something.

[Failure to solve the problem]

The tape cleaning device of the present invention has cleaning surfaces on both sides, a cleaning tape wound between a supply reel and a take-up reel, and a signal recording surface. Two tapes to be cleaned run along the running path, one cleaning surface of the cleaning tape and the other cleaning surface of one cleaning tape and the recording surface of the other cleaning tape. The device is equipped with means for bringing the device into contact with the device.

[For production]

According to the tape cleaning device of the present invention, the recording surfaces of two tapes to be cleaned can be simultaneously cleaned by effectively utilizing both the front and back sides of one cleaning tape.

〔Example〕

An embodiment in which the present invention is applied to a high-speed magnetic tape printer will be described below with reference to the drawings.

Note that this high-speed printer is a magnetic field transfer device that produces soft tapes (magnetic tapes on which signals are magnetically transferred) for video and audio.

First, an overview of a high-speed printer will be explained with reference to FIG.

A master tape (a magnetic tape on which signals to be transferred are recorded) 1 and a slave tape (a magnetic tape on which signals are transferred by a magnetic field) 2 are composed of a plurality of tape guides 3a to 3d, 4.
Arrow a on the driving route guided by a to 4d and 5
, b directions, respectively. The master tape l and the slave tape 2 are placed on a large-diameter rotary rubber roller 6 with their recording surfaces (magnetic surfaces) la and 2a stacked on top of each other, and then placed on a ceramic roller 2 of a magnetic field transfer head 7.
8 is crimped. And 1 rotation rubber row, 7
6 is rotationally driven in the direction of the arrow C by a motor C (not shown), so that the one star tape 1 and the slave tape 2 are rotated at the same speed in the directions of arrows a and b at a high speed of, for example, 1 to 2 m/sec or more. While running, the signals recorded on the recording surface 1a of the master tape 1 are magnetically transferred to the recording surface 2a of the slave tape 2 by the magnetic field transfer head 7, thereby producing a video or audio soft tape at high speed. It is.

The tape cleaning device fill is disposed between the master tape 1 and the slave tape 2 between the tape guides 3a, 3b and 4a, 4b. is configured in the tape to be cleaned according to the present invention.

Next, the tape cleaning device 11 will be explained with reference to FIGS. 1 and 2. First, as shown in FIG.
has cleaning surfaces 12a and 12b on both the front and back sides.
Both ends of the cleaning tape 12 are wound around a supply reel 13 and a take-up reel 14. One cleaning surface 12a and the other cleaning surface 12 of this cleaning tape 12
A pair of tape guides 15 and 16, which are means for bringing the tape b into contact with the recording surface 1a of the master tape L and the recording surface 2a of the slave tape 2, are tape guides 3a and 3b and 4a and 4.
It is located between b. and.

The cleaning tape 12 is fed from the supply reel 3 in the direction of arrow d.
direction and is reversed in the direction of arrow e on the circumferential surface of the tape guide 15, and on the circumferential surface of the tape guide 15 one cleaning surface 12a is aligned with the recording surface 1a of the master tape l.
be contacted. and.

The cleaning tape 12 is pulled out from the tape guide 15 in the direction of the arrow f, reversed in the direction of the arrow g on the circumferential surface of the take-up reel 14, and then further pulled out in the direction of the arrow, and rotated in the direction of the arrow i on the circumferential surface of the tape guide 16. The other cleaning surface 12b on the circumferential surface of the tape guide 160 is brought into contact with the recording surface 2a of the slave tape 2. The cleaning tape 12 is drawn out from the tape guide 16 in the direction of arrow j and wound onto the take-up reel 14 in the direction of arrow g.

Next, as shown in FIG. 2, a friction wheel 20 and a driven gear 21 are rotatably mounted above and below a fixed shaft 19 fixed on the frame 18. The upper end of the friction wheel 20 is received by an E ring 22 attached to the upper end of the fixed shaft 19, and the lower end of the friction wheel 20 has preload springs 23. poly washer 24,
The driven gear 20 is frictionally engaged by a slip mechanism 26 made of a felt plate 25. The supply reel 13 is mounted on a reel holder 2O that is integrally provided with the friction wheel 20.
a, and inserted into the upper end of the friction wheel 20.
The supply reel 13 is held on the reel holder 20a by an IJ-ru knob 28 that is locked with a ring 27.

In addition, a pulse motor 30 installed under the frame 18
A motor shaft 31 is disposed below the frame 18, and the take-up reel 14 is inserted onto a reel holder 33 fixed to the motor shaft 31 with a set screw 32, and inserted into the upper end of the reel holder 33. The take-up reel 14 is held on the reel holder 33 by a reel knob 35 that is locked with an O-ring 34.

A driving gear 37 fixed to the lower end of the motor shaft 31 by a set screw 36 is meshed with the driven gear 2.

Further, as shown in FIG. 2, a pair of tape guides 15.
16 is composed of an upper tape guide 39 and a lower tape guide 40, which are inserted into each other from above and below and are movable relative to each other in the thrust direction (vertical direction). The upper tape guide 39 and the lower tape guide 40 are inserted into the upper part of a stepped portion 42 of a fixed shaft 41 fixed below the frame 18. Then, the lower tape guide 40 is pressed upward by the preload spring 43 inserted into the lower end of the fixed shaft 41, and the height adjustment nut 45 is attached to the screw shaft 44 integrally provided at the upper end of the fixed shaft 41. The upper end 40b of the lower tape guide 40 abuts the nut 45 from below, and the upper tape guide 39 is urged downward by a preload spring 46 inserted below the nut 45. .

Note that the preload spring 43 is made of a strong spring.
6 is made up of a weak spring. Then, on the circumferential surface 15a% 16a of these pair of tape guides 15 and 16,
and these tape guide upper 39 and tape guide lower 40
The master tape 1 m and the slave tape 2 are respectively guided between the seven flange surfaces 39a and 40a, and the cleaning tape 12 is brought into contact with and guided by the master tape 1 and the slave tape 2.

Next, the operation of the tape cleaning device 11 will be explained.

As described above, while the master tape x71t and the slave tape 2 are running at the same speed in the directions of arrows a and b, the pulse motor 30 intermittently moves the winding wheel 14 in the direction of arrow g via the motor shaft 31. Drive to rotate. Then, the cleaning tape 12 is intermittently pulled out from the supply reel 13 by an arbitrary length, and the cleaning tape 12 is drawn out in the direction of the arrow d - e - f - g - h.
-i -J -Proceeds sequentially in the -g direction to take one winding and one roll 1
4, it is intermittently wound up to an arbitrary length. In addition, at this time.

The rotational torque of the motor shaft 310 is transmitted to the supply reel 13 via the drive gear 37 - driven gear 21 - slip mechanism 26 - friction wheel 20, and the supply reel 13 transfers the cleaning tape 12 as described above with back tension. Supply as follows.

Then, at the circumferential surface 15a of the tape guide 15, the cleaning surface 12a of the cleaning tape 12 comes into contact with the recording surface 1a of the master tape I, and the recording surface 1a is cleaned. At the same time, the other cleaning surface 12a of the cleaning tape 12 is brought into contact with the recording surface 2a of the slave tape 2 at the circumferential surface 16a of the other tape guide 16, and the recording surface 2a is cleaned. .

In addition, the height adjustment nut 45 of each tape guide 15.16
By rotating and adjusting the height of the nut 45, the height of these tape guides 15 and 16 can be easily adjusted by working with each preload spring 43. . Moreover, the flange surfaces 39a of the upper tape guide 39 and the lower tape guide 40 are fixed by using the spring force of the weak preload spring 46.

40a, the upper and lower edges of each of the master tape 1 and the slave tape 2 can be lightly pinched and guided from above and below (lateral pressure can be applied to the upper and lower edges from above and below). Therefore, these tape guides 15 and 16 can accurately define the running heights of master tape 1 and slave tape 20, and also prevent the upper and lower edges of master tape 1 and slave tape 2, which are running at high speed, from forming seaweed-like shapes. Damage is reduced. Note that the height adjustment structure and lateral pressure applying structure of these tape guides 15 and 16 are the same as those of the tape guides 3a to 3d and 4a to 4 described above.
It can be applied to all tape guides of d and 5.

Further, in this embodiment, the cleaning tape 12 is intermittently fed by the drive of the pulse motor 30, but the cleaning tape 12 may be fed continuously at a lower speed than the tape to be cleaned.

Note that FIG. 3 shows a modified example.

By omitting the pair of tape guides 15 and 16, the cleaning tape 12 is passed between the supply reel 13 and the take-up reel 14 in an S-shape, and the cleaning tape 12 is passed between the supply reel 13 and the take-up reel 14 in an S-shape. , both cleaning surfaces 12a and 12b of the cleaning tape 12 are brought into contact with the recording surfaces 1a and 2aK of the master tape 1 and slave tape 2. In this case, the tape guides 3a, 3b and 4a, 4b located at the front and rear of the reels 13, 14 serve as means for bringing the cleaning surfaces 12a, 12b of the cleaning tape 12 into contact with the master tape l and slave tape 2. Become.

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments, and various effective changes can be made based on the technical idea of the present invention.

Furthermore, the present invention is not limited to a high-speed magnetic tape printer (a magnetic recording/reproducing device using a magnetic tape,
It is also possible to apply various tape and film running devices flK using various other tapes and films.

〔Effect of the invention〕

As described above, the tape cleaning device of the present invention makes it possible to simultaneously clean the recording surfaces of two tapes to be cleaned by effectively utilizing both the front and back surfaces of one cleaning tape. 1 For example, if applied to a high-speed magnetic tape printer, the recording surfaces of both the F star tape and slave tape can be cleaned simultaneously with one cleaning tape, resulting in a high-quality soft tape that does not cause dropouts. However, since only 91 cleaning tapes are conventionally required, the tape cleaning device requires only 2 tapes.
Although it has the function of cleaning the book tape at the same time, it is compact, has a simple structure, and is easy to assemble, adjust, and maintain, and is extremely low cost.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention. 1 is a plan view of a main part, 2rgJ is a cross-sectional view taken along the arrows 1--2 in FIG. 1, FIG. 3 is a plan view of a modified example, and FIG. 4 is a plan view of the whole. In addition, in the symbols used in the drawings. 1... Master Chi 7'lE cleaning tape) 2... Slave tape (M Ri17-
111... Recording surface 2 a...
...Tape cleaning device 12...
-Cleaning tape 12a...Cleaning surface 12b...Cleaning surface 13...Supply reel 14...Take-up reel 15... ...Tape guide (means for making contact) 16...Tape guide (means for making contact).

Claims (1)

[Claims] A cleaning tape whose front and back surfaces are configured as cleaning surfaces, a cleaning tape wound between a supply reel and a take-up reel, and a signal recording surface, and has a predetermined running surface. Two tapes to be cleaned run along a path, and one cleaning surface and the other cleaning surface of the cleaning tapes are brought into contact with the respective recording surfaces of one tape to be cleaned and the other tape to be cleaned. A tape cleaning device comprising means.