JP2531252Y2 - Loader cut position determination device - Google Patents

Description

[Detailed Description of the Invention] [Industrial application field] The present invention relates to a case where several tens of cassette tapes are wound on a tape cassette for each tape of so-called pancake tape, which is recorded via a cue signal. The present invention relates to a loader cut position determining device for determining whether or not a cut position is correct.

[Conventional technology]

As described above, the pancake tape has several tens of rolls of cassette tape (specifically, about 36 rolls depending on the recording time, but the cue signal (recorded at the head of one roll)). Has been recorded through. Then, the recorded pancake tape is mounted on a music tape winding machine called a loader machine, and is wound on a tape cassette for each reel while reading the cue signal.

This loader machine will be described with reference to the conceptual diagram of FIG.

In the figure, 1 is a pancake, 2 is the pancake 1
Tape cutting means for cutting the tape 1a pulled out from the tape signal portion at a cue signal portion, a tape cassette storing means for storing a tape cassette T around which only a leader tape is wound, and 4 a tape cassette storing means sequentially from the cassette tape storing means 3. Tape cassette holding means 5 for holding only one of the supplied tape cassettes draws a leader tape from the tape cassette held by the tape cassette holding means 4, and supplies the leading end of the leader tape to the tape cutting means 2. The leader tape withdrawing means 6 is provided between the winding side of the leader tape withdrawn from the leader tape withdrawing means 5 and the pancake 1.
The tape 1a is connected with the connecting tape by a connecting tape, and after one tape of the tape 1a is wound, the tape 1a is wound.
Tape connecting means for connecting the end of one roll in 1a to the supply side of the leader tape pulled out by a connecting tape, and 7 is a cue signal detecting magnet for detecting a cue signal recorded on the tape 1a of the pancake 1. A head (hereinafter, referred to as a first head) 8 is a back surface detection magnetic head (hereinafter, referred to as a second head) for detecting whether or not the tape 1a drawn from the pancake 1 is the back surface when the pancake 1 is caught. ), 9 and 10 are tension arms and counter wheels for guiding the tape 1a drawn from the pancake 1 to the tape connecting means 6, and 11 is a guide roller.

Next, in order to explain the operation based on the above-described configuration, the tape 1a is pulled out from the pancake 1 in advance and a guide roller is drawn.
11. After the tension arm 9 and the counter wheel 10 are wound around, they are wound around a winding shaft (not shown). When the power switch is turned on in this state, the winding shaft starts rotating and the tape 1a starts running, so that the first and second heads 7,
8 starts playback.

On the other hand, when the power is turned on, one of the tape cassettes T in the tape cassette storage means 3 is moved to the tape cassette holding means 4 side and set at a predetermined position.

When the reproduction output by the second head 8 is smaller than a preset value at the start of the reproduction, the winding of the tape 1a is terminated because the front and back of the tape 1a are reversed. If it is determined in this determination that the reproduction output is normal, the detection of the cue signal by the first head 7 is started, and when the cue signal is detected here, the rotation of the pancake 1 is stopped. At this time, the detected cue signal portion of the tape 1a advances to the vicinity of the tape cutting means 2 due to inertia. When the running of the tape 1a stops, the tape 1a is cut by the tape cassette means 2.

When the cutting of the tape 1a is completed, the leader tape is pulled out from the tape cassette T in the tape cassette holding means 4 by the leader tape pulling means 5, and cut at the center of the drawn leader tape. Then, the leading end of the leader tape on the winding side is set on the tape connecting means 6. Then, the leading end of the cut tape 1a and the leading end of the leader tape are connected by the tape connecting means 6, and then the tape cassette T is wound up by the spindle projecting below the tape cassette holding means 4.

Since the running of the tape 1a is started again by this winding operation, the detection of the cue signal by the first head 7 is started again. When the cue signal is detected, the pancake 1 stops, and the tape 1a cuts the tape 1a by the tape cutting means 2 because the portion of the cue signal moves to the vicinity of the tape cutting means 2 due to inertia. .

At the same time, the leader tape on the supply side of the tape cassette T is set in the tape connecting means 6, so that the leading end of the leader tape and the cut tape
The connection with the leading end of 1a is made in the tape connecting means, and then the drawn-out leader tape is wound. When this operation is completed, the tape cassette T
Is discharged from the cassette holding means.

Hereinafter, one roll of all the tapes 1a of the pancake 1 is wound into each tape cassette T by the same operation.

[Problems to be solved by the invention]

By the way, since the length of one roll of the above-mentioned pancake tape is determined in advance, the content of one roll may not be recorded at the end of the tape depending on the recording time. Therefore, the end portion of the winding was wound around a winding shaft, and all the tapes 1a of the pancake 1 were wound into a tape cassette T, then removed from the winding shaft and discarded.

However, the amount of winding on the winding shaft is up to the portion cut by the tape cutting means 2 when the first cue signal on the tape 1a is detected. The tape 1a wound around the tape cassette T has a drawback that the last part of the music ends in the middle.

Therefore, conventionally, in order to detect the end of the music piece, the tape 1a has to be rewound, and the operator has to play and listen to the music piece for inspection of the music piece. For this reason, there is a problem that it takes time and labor, reduces the work efficiency, and increases the cost.

The present invention is intended to solve the above-mentioned problem, and the purpose of the present invention is to provide a magnetic head which is one unit smaller than the conventional one.
An object of the present invention is to provide a loader cut position determining device that can automatically prevent the end of the tape from being cut by increasing the number of pieces and changing a part of the detection circuit.

[Means for Solving the Problems] The loader cut position judging device of the present invention is intended to achieve the above-mentioned object, and the means is a tape from a pancake wound with a plurality of cassette tapes. In a tape winding machine that cuts the tape for each cue signal and winds the tape into a tape cassette, an output for lowering the tape speed is transmitted by detecting a cue signal of the tape that is arranged near the pancake. A first magnetic head, a second magnetic head disposed downstream of the tape connecting means for connecting the tape and the leader tape in the tape running direction and outputting an output for detecting a cue signal, and an upstream of the tape connecting means. A third magnetic head that is disposed on the side and sends out an output when a cue signal is detected, and wherein the first and third magnetic heads detect a cue signal; A control circuit for outputting a signal indicating that an abnormality has occurred except when the second magnetic head does not detect a cue signal.

[Action]

In the loader cut position judging device of the present invention configured as described above, the third head is arranged on the upstream side in the tape running direction of the tape connecting means, the first and third heads detect a cue signal, and the second head is detected. When no cue signal is detected, it is determined that the tape has been cut at a normal position, and otherwise, it is determined that an abnormality has occurred.

[Example of the invention]

Hereinafter, an embodiment of the present invention will be described with reference to FIG. The same reference numerals as those in FIG. 4 of the above-described conventional example denote the same members, and a description thereof will be omitted.

The present invention is structurally different from the conventional example in that the third head 12 is arranged in the vicinity of the tape connecting means 6 on the upstream side in the tape running direction.

 Next, the control circuit in FIG. 2 will be described.

7, 8, 12 are the first to third heads described above, and 13, 14, 15 are the first heads.
A low-pass filter that passes only the cue signal from the reproduction output from the third heads 7, 8, and 12; the detection unit 16 detects the level of the reproduction output from the second head 8 so that the reproduction output level is lower than a preset level. A level detector which sends an output when the level is small, 17 is a control circuit which operates as shown in the flow chart shown in FIG. 3, and 18 is a warning display section which generates a warning sound, a warning lamp, and the like according to the output from the control circuit 17. is there.

Next, the operation will be described with reference to FIG. 3 based on the block diagram.

First, when the tape 1a starts running, the level detector 16 detects whether or not the reproduction output from the second head 8 is larger than a preset value because the set of the tape 1a has been turned upside down. If the output level is low, the control circuit 17 sends an output to the warning display section 18 (step S1). Therefore, the warning display section 18 operates to generate a warning (step S2).

If it is determined in the comparison in the level detector 16 that the signal is normal, the control circuit 17 waits for the input of a cue signal from the low-pass filter 13 that allows only the cue signal from the first head 7 to pass (step S1). S3),
When determining that the cue signal has been output from the low-pass filter 13, the control circuit 17 monitors whether or not a cue signal has been input from the low-pass filter 14 that allows only the cue signal from the third head 12 to pass (step S4). . In this determination, if it is determined that the cue signal is not input within a predetermined time, the control circuit 17 sends an output to the warning display unit 18.

On the other hand, if the control circuit 17 determines that the cue signal has been output within the predetermined time, it monitors whether or not the cue signal from the low-pass filter 15 that allows only the cue signal from the second head 8 to pass is input (step S1). S5). In this determination, if it is determined that the cue signal has been input within a predetermined time, the control circuit 17 sends an output to the warning display unit 18. If it is determined that the cue signal has not been output within the predetermined time, it is determined that the tape 1a wound in the tape cassette T is normal (step S6).

In the above-described operation, when it is determined that the tape cassette T is in an abnormal state, the tape cassette T in which the tape 1a has been wound is not distributed to the abnormal side so that no warning is issued, and when it is determined that the tape cassette T is normal, , May be assigned to the normal side.

[Effect of the invention]

In the present invention, as described above, the third head is disposed upstream of the tape connecting means in the tape running direction, and the first and third heads detect a cue signal, but do not detect a cue signal from the second head. At times, it is determined that a tape cassette has been performed at a normal position, and it is determined that an abnormality has occurred in any other detection state. Has the effect that the end of the tape can be automatically prevented from being broken.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing a loader cut position determining apparatus according to the present invention, FIG. 2 is an electric block diagram incorporated in the apparatus, FIG. 3 is an operation flowchart of a control circuit of the same, FIG. The figure is a perspective view schematically showing a conventional example. 1 ... pancake, 1a ... tape, 2 ... tape cutting means, 3 ... tape cassette storage means, 4 ... tape cassette holding means, 5 ... leader tape pulling means, 6 ...
Tape connecting means, 7, 8, 12 ... first to third heads, 13 to 15
... low-pass filter, 16 ... Reher detector, 17 ... control circuit.

Claims (1)

(57) [Scope of request for utility model registration] 1. A tape winding machine in which a tape from a pancake on which a plurality of cassette tapes are wound is cut for each cue signal and wound around a tape cassette. And a first magnetic head for outputting an output for reducing the tape speed by detecting a cue signal of the tape, and a cue signal arranged downstream of the tape cutting means in the tape running direction from the tape cutting means for cutting the tape. A second magnetic head for transmitting an output to be detected, a third magnetic head disposed upstream of the tape cutting means and transmitting an output when a cue signal is detected, and the first and third magnetic heads detecting a cue signal And a control circuit for outputting a signal indicating that an abnormality has occurred except when the second magnetic head does not detect a cue signal. Loader cutting position determination device to.