JPS6232348Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to leader tape, and in particular, from the original tape,
The present invention relates to a leader tape that is effective for use in detecting when a tape is wound onto a reel or when a leader tape incorporated in a cassette half is wound upside down.

A utility model was published in the Showa era for a leader tape that was conventionally incorporated into a cassette half with an arrow indicating the winding direction printed so that it could be seen from the front opening of the case.
It is disclosed in Japanese Patent No. 49-10520 and is well known.

As shown in FIG.
A leader tape (cleaning tape) with a rough surface is connected to one end, the other end of the leader tape is locked to the spool 3, and the leader tape made of transparent polyester film etc. Vertical lines 4 and arrows 5 are printed at positions of about cm, and the arrows 5 indicate the direction of the spool 3 and are arranged so as to be located in front of the window 7 of the cassette 6 shown in FIG. Further, the vertical stripe 4 indicates the manufacturing date of the cassette 1 by color.

As mentioned above, leader tapes that indicate the winding direction of the tape or printed colors that display the production lot and date are known, but these printings (arrows, vertical lines, etc.) are known. ) is when the magnetic tape, including the leader tape, is wound onto multiple reels using a slitter from the original tape, or when the leading end of the leader tape is secured to the spool in the cassette half, the tape is wound in the opposite direction onto the reel or spool. Sometimes it is not possible to determine whether the leader tape is on the front side or the back side, so if a reel wound in the opposite direction is sent to the production process, all cassettes will be wound in the opposite direction and recording and playback will not be possible. It has the disadvantage that a cassette is formed.

The present invention provides a leader tape that eliminates the above-mentioned drawbacks, and is characterized by printing lines that are inclined to the right or left in the width direction of the leader tape.

The details of the present invention will be explained below in Fig. 3. In order to facilitate understanding of the present invention, the process of obtaining a width cassette tape from an original magnetic tape using a slitter will be explained with reference to FIG.

The original fabric 8 is wound around an original fabric supply roller, and the original fabric is connected to leader tape sections 8a, 8b and magnetic tape section 8c.
The length L of the magnetic tape section is determined depending on the type of tape to be incorporated into the cassette, for example, 60 minute tape, 90 minute tape, etc., and the wide raw material is passed through the slitter device 9 into a tape of a predetermined width. divided into multiple parts,
Multiple reel groups 10a to 10e and 10f to 10j
is wound around.

In the case of the above-mentioned configuration, the slitting device 9 separates the plurality of reel groups 10a to 10e and 10f to 10j.
The path leading to the reel 10a is relatively long, and kinks may occur on this path, and the reel 10a may be twisted without knowing this.
.about.10e, etc., the slit magnetic tape and leader tape are wound in opposite directions.

Furthermore, the above-mentioned reels 10a to 10e and 10f to
When the magnetic tape 8c and the leader tapes 8a and 8b, which have been pulled out from the slit 10j, are secured to the cutout groove 11a of the spool 11 of the cassette by the clamp piece 12, the magnetic tape 8a and the leader tapes 8a and 8b may be twisted. It is locked and wound backward onto the spool. In order to solve such troubles in the production process, in the present invention, as described above, a line inclined to the right or left in the width direction of the leader tape is printed in advance. As shown in the figure, leader tapes 8a, 8 are connected to a magnetic tape 8c wound around a raw fabric supply roller 7.
A line 13 inclined to the right or left in the width direction W on b
print. In this case, when the leader tapes 8a and 8b at the beginning and end of the winding are viewed from the window 7 of the cassette 6 as shown in FIG.
If the line 13 is placed so that it is visible, the direction of the line 13 will be tilted diagonally to the right, as shown in Figure 7, if the tape is wound backwards or if the tape is twisted to the spool. This means that reverse winding can be easily detected or discovered. Of course, if we differentiate the colors of such lines according to the length of the magnetic tape, setting 60 minutes as red and 90 minutes as blue, we can create a line that has two functions in one line. I can provide it.

Furthermore, by printing an arrow 13a indicating the tape winding direction on this inclined line as shown in FIGS. 8 to 10, the tape winding direction can also be indicated.

Since the present invention is constructed as described above, reverse winding can be easily distinguished just by looking at the leader tape.When the front and back are reversed, the direction of the diagonal lines is reversed, so it is possible to distinguish between the two, and the production process can be improved. Troubles that occur during the process can be easily discovered, and if an arrow is attached to indicate the direction, the direction of travel can be determined without looking at the label on the cassette tape, so the practical effects are great.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a conventional leader tape, Fig. 2 is a front view of a cassette half in which the leader tape shown in Fig. 1 is assembled into a cassette, and Fig. 3 explains the process of obtaining a slitter tape from the original fabric of the present invention. FIG. 4 is a front view showing the state in which the slitter tape of the present invention is locked to the spool;
Figure 5 is an oblique view showing the original tape and leader tape of the present invention, Figure 6 is a front view of the leader tape of the present invention installed in a cassette, and Figure 7 shows the leader tape reversely wound. A front view of a cassette similar to that shown in FIG. 6, and FIGS. 8 to 10 are plan views showing the printing form of the leader tape of the present invention. 1, 8c are magnetic tapes, 2, 8a, 8c are leader tapes, 3, 11 are spools, 5 is an arrow, 6 is a cassette, 7 is a window, 9 is a slitter device, 10a-
10j is a reel, 12 is a clamp piece, and 13 is a line.

Claims (1)

[Claims for Utility Model Registration] (1) A leader tape comprising a line inclined to the right or left in a direction perpendicular to the longitudinal direction of the leader tape. (2) The leader tape according to claim 1 of the utility model registration claim, which is formed by attaching an arrow to an inclined line. (3) The leader tape according to claim 1 of the utility model registration, which is formed by adding color to an inclined line.