JPS6343835B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic tape transfer device.

Generally speaking, when manufacturing soft tapes for helical scan VTRs in large quantities, it is difficult to increase the tape speed during duplication, which is used for audio, than the tape speed during normal recording and playback. Instead, a contact transfer method is used. Conventional cassettes using this contact transfer method
There is an apparatus for manufacturing cassette-type soft tapes for VTRs, as shown in FIG. The tape is spliced together with the recorded original tape 5 and wound onto a take-up reel 6, a transfer magnetic field is applied by a magnetic field generator 7, and then rewound onto each tape reel. The cut tape 2 is stored in the tape cassette 1 to complete the transfer. In the case of this conventional method, a long length of magnetic tape (usually called pancake-shaped magnetic tape, equivalent to several volumes of cassette tape or more) is used.
In other words, a so-called cassette tape, which has been wound in advance into a tape cassette, is used as the unrecorded transfer tape. Therefore, the tape that has been wound in a tape cassette in advance is taken out, fed into the transfer device, and rewound back into the tape cassette. The process of winding the tape into a cassette is wasted, and the cost increases when producing cassette-type soft tape in large quantities.

The present invention has been devised to address this problem, and aims to provide a transfer device that can produce cassette-type soft tapes more quickly and efficiently. The present invention will be described below based on drawings showing an example of implementation. First, in FIG. 2, 8 is a pancake-shaped unrecorded transfer tape, and 9 is a recorded original tape, on which only the length of one cassette roll is recorded. 10 is a tape cassette containing only a transparent trailer tape (trailer tape determined by VTR standards), 11 is a trailer tape pulled out from tape cassette 10, and 12 is wrapped with a guide tape for unrecorded transfer tape 8. One end is wound around the inner reel 14 of the take-up reel 13. 15 and 16 are a first tape holding member and a second tape holding member that hold the trailer tape 11; 17 is a tape cutting and joining means comprising a tape cutting means and a tape joining means; trailer tape 1
1 and fixed to a substrate (not shown) at a predetermined position. 18 is a third tape holding member that holds the leading end of the guide tape 12 pulled out from the take-up reel 13; 19 is a fourth tape holding member that holds the leading end of the unrecorded transfer tape 8;
0 is a rotatable first rotating table with a first tape holding member 15 and a third tape holding member 18 provided on the upper part, and 21 is a second tape holding member 16 and a fourth tape holding member 19. is the second rotating table provided on the upper part, and the first rotating table 20 and the second rotating table 21 are
As shown in the figure, the third tape holding member 18 and the fourth tape holding member 19 are rotated at the same time with respect to the tape cutting and joining means 17 (the first tape holding member 15 and the fourth tape holding member 19 in FIG. The position of the second tape holding member 16 is configured to move to the position of the second tape holding member 16, and as shown in FIG.
only rotates, and the third tape holding member 18 and the second tape holding member 16 are connected to the tape cutting and joining means 17.
It is configured to move to a predetermined position. Reference numeral 22 denotes a holding member for the starting end of the recorded original tape 9, which is provided inside the take-up reel 13. Note that the first to fourth tape holding members 15, 1
6, 18, and 19 are structurally the same,
As shown in FIG. 5, the tape holding surface 23 has a groove 23a for regulating the tape width, and the groove 23a is provided with a plurality of small holes 24.
communicates with the air chamber inside each tape holding member 15, 16, 18, 19, and the rear hose 25 is connected to the air chamber from the air chamber.
It is connected to the vacuum pump 26 by. This vacuum pump 26 operates only when the tape cutting and joining means 17 operates. Moreover, each tape holding member 15,
Mechanical tape holders (not shown) are independently provided at 16, 18, and 19, and are configured to operate when winding and rewinding the tape. Further, the tape cutting and joining means 17 has a mechanism for moving a cutter blade for cutting the tape, and a mechanism for moving the splice tape for tape joining to the joining position of both tapes to be joined and joining the splice tape to both tapes under pressure. This is due to the configuration. In FIG. 2, 27 is a means for detecting the length of the recorded original tape 9, which is composed of a magnetic head for detecting recorded signals on the recorded original tape 9, and 28 is a magnetic field generator for generating a transfer magnetic field. 29 is a detection means for detecting the joint between the guide tape 12 and the pancake-shaped unrecorded transfer tape 8.

Next, the operation of the present invention will be explained. In FIG. 2, the recorded original tape 9 is used as a preparation for the operation of the device.
Wind up the tip of the holding member 22 inside the reel 13.
Then, the guide tape 12 is attached to the third tape holding member 1.
8 , the leading end of the unrecorded transfer tape 8 is held on a fourth tape holding member 19 , respectively. Next, when the tape cassette 10 containing only the trailer tape 11 is loaded, the trailer tape 11 is pulled out, and the trailer tape 11 is pulled out by the operation of the vacuum pump 26 on the first tape holding member 15 and the second tape holding member 16. Retained. After that, the trailer tape 11 is cut and joined by the tape cutting and joining means 17.
is cut, and the tip of the cut trailer tape 11 is attached to the first and second tape holding members 15 and 16.
is held in Next, as shown in FIG. 3, the first rotating body 20 and the second rotating body 21 rotate, and the third tape holding member 18 holding the guide tape 12 and the tip of the unrecorded transfer tape 8 are rotated. The held fourth tape holding member 19 is located in parallel in front of the tape cutting and joining means 17. In this state, the tape cutting and joining means 17 operates to join the guide tape 12 and the unrecorded transfer tape 8 via the splice tape. In this state, the guide tape 12 including the joint between the guide tape 12 and the unrecorded transfer tape 8 is wound around the inner reel 14 of the take-up reel 13. Thereafter, the recorded original tape 9 and the unrecorded transfer tape 8 are transferred to the inner reel 14 of the take-up reel 13.
It is wound so that the magnetic surfaces are in close contact with each other. By detecting the end of the recorded original tape 9 by the signal detecting means 27 of the recorded original tape 9, the magnetic field generator 28 is operated, and the recorded signal on the recorded original tape 9 is transferred onto the unrecorded transfer tape 8. Transcribe. While winding both the recorded original tape 9 and the unrecorded transfer tape (8), the first and second rotating bases 2
0 and 21 remain in the state shown in FIG. 3, when the application of the transfer magnetic field is finished, the tape cutting and joining means 17 is operated in this state to cut the unrecorded transfer tape 8. In this case, take-up reel 1
The unrecorded transfer tape 8 on the third side is a transferred tape. Thereafter, when the second rotating table 21 is rotated to its original state as shown in FIG. 4, the third tape holding member 18 holding the end of the unrecorded transfer tape 8 (transferred tape) and a second tape holding member 1 holding one end of the trailer tape 11.
6 are located in parallel in front of the tape cutting and joining means 17. In this state, the tape cutting and joining means 17 is operated to join the end of the unrecorded transfer tape (transferred tape) 8 and one end of the trailer tape 11. Thereafter, the unrecorded transfer tape (transferred tape) 8, which has been transferred, is rolled into the tape cassette 10. At the time of rewinding, the detecting means 29 detects the joint between the guide tape 12 and the unrecorded transfer tape 8 that has completed the transfer, and stops the tape joint before the second tape holding member 16 to remove the unrecorded transfer. A portion of the tape 8 is cut by a tape cutting and joining means 17. Thereafter, the first rotating table 20 is moved, and as shown in FIG. The two tape holding members 16 are placed in parallel, and the tape cutting and joining means 17 joins the other end of the trailer tape 11 and the tip of the unrecorded transfer tape 8 that has been transferred. Thereafter, the tape held by the first tape holding member 15 and the second tape holding member 16 is pulled back into the tape cassette 10. All the transfer operations for one roll of cassette tape are thus completed, and when a new tape cassette is loaded, the second transfer tape is manufactured in the same manner as described above. Pancake-shaped unrecorded transfer tape has a length of several to several tens of rolls, so when you run out of pancake-shaped unrecorded transfer tape, you can use this pancake-shaped unrecorded transfer tape. By replacing it with a new one and loading the tape cassette containing only the trailer tape again, it is possible to obtain a cassette tape containing a recorded (transferred) tape, a so-called soft tape.

The magnetic tape transfer device of the present invention can be implemented as described above, and the operation of cutting and winding a pancake-shaped unrecorded transfer tape into a tape cassette to a predetermined tape length can be performed during the transfer process. The length of the cassette tape can also be wound in accordance with the recorded tape length of the recorded original tape (it is possible to make a cassette tape with a tape length that corresponds to the length of the software), so the length of the conventional tape can be changed. Compared to a cassette-type transfer device that uses a standardized cassette tape, it has the advantage of not only saving time for tape winding, but also eliminating unnecessary tape portions (unrecorded portions) within the cassette tape. When manufacturing a soft tape, the soft tape can be manufactured efficiently.

In the above embodiment, a magnetic head for detecting the recorded signal of the recorded original tape 9 was used as the means 27 for detecting the length of the recorded original tape 9. However, depending on the length of the recorded original tape 9, It may also be a counter that can be preset (for example, a counter that corresponds to a detection signal such as the number of revolutions of a take-up reel or the number of revolutions of a supply reel of a recorded original tape), or a light detection means of a transparent trailer tape.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of a conventional cassette type magnetic tape transfer device, FIGS. 2 to 5 show an example of implementation of the present invention, FIG. 2 is a schematic configuration diagram, and FIGS. The figure is an explanatory view of the operation, and FIG. 5 is a perspective view of the tape holding member. 8...Pancake-shaped unrecorded transfer tape, 9...
... Recorded original tape, 10 ... Tape cassette, 1
DESCRIPTION OF SYMBOLS 1... Trailer tape, 12... Guide tape, 13... Take-up reel, 14... Inner reel, 15, 16... Tape holding member, 17... Tape cutting and joining means, 18, 19... Tape holding Member, 20, 21... rotating body, 27... detection means,
28...Magnetic field generator, 29...Detection means.

Claims (1)

[Claims] 1. A recorded original tape, an unrecorded transfer tape that is longer than the recorded original tape, a means for detecting the length of the recorded original tape, and one end of which is wound around the take-up reel and the other end of which is wound around the take-up reel. comprising a guide tape for the unrecorded transfer tape pulled out from the reel and held, a tape cassette containing only the trailer tape, and a tape cutting and joining means provided at a position where the tape is pulled out from the tape cassette, The trailer tape is pulled out from the tape cassette, cut and held, and the unrecorded transfer tape is joined to the guide tape. The unrecorded transfer tape was wound onto a take-up reel, and after completing the transfer from the recorded original tape to the unrecorded transfer tape on the take-up reel, the unrecorded transfer tape was cut to complete the transfer. Join the end of the unrecorded transfer tape and one cut end of the trailer tape, rewind it into the tape cassette, then cut the unrecorded transfer tape that has been transferred from the guide tape, and then connect the cut end of the trailer tape with the other cut end of the trailer tape. A magnetic tape transfer device characterized by being bonded.