JPH0351821Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is to record a program such as music, store it in a cassette half, and sell it as a recorded cassette tape by winding a long recording tape around a reel and transporting it. Alternatively, the present invention relates to a winding prevention board for a long tape to prevent the tape from unwinding when stored or installed in a recorder.

Conventionally, unrecorded tapes cut to the required width of 3.8 mm to be sold as recorded cassette tapes are 8 mm thick with a hole 1 in the center for mounting on a recorder, as shown in Figure 1. A tape 3 is wound around a reel 2 having an outer diameter of about 114 mm to an outer diameter of about 250 mm to make a long tape for recording.

However, the center of the width of the tape 3 and the center of the thickness of the reel 2 do not always coincide and may be shifted to one side, so the height difference between the reel 2 and the tape 3 is in the range of 1.0 to 4.0. It is normal for it to vary.

In addition, there is a limit to the tightening force of the tape 3 because if it is wrapped too tightly, the tape 3 will stretch, and when placed on a flat surface, only the winding frame 2 touches the flat surface.
Due to the weight of the tape 3, the tape 3 may deform into a conical shape that is closer to the plane at the outer diameter, making it more likely to unwind, or due to the natural elongation of the tape 3 or the difference in shrinkage rate due to temperature. If the winding of the tape 3 becomes loose due to the above reasons, the winding may become misaligned when it is lifted or installed in a recorder, making the tape unusable.

The purpose of the present invention is to prevent the winding from slipping by handling the winding-slip prevention plate of the present invention alongside the long tape wound around the reel, thereby eliminating the drawbacks of the conventional tape. It is.

An example of the implementation of the present invention will be described with reference to FIGS. 2 and 3. The outer diameter is slightly larger than the outer diameter of the tape 3, that is, about 270 mm, and the reel 2 is attached to the recorder in the center. A hole A of the same shape and size as hole 1 is bored on a hard disk B made of metal, etc., and a hole A having the same outer diameter as that of the hard disk B and the same diameter as that of the winding frame 2 is placed in the center of the hole A. A sponge disk D, such as a soft rubber sponge having soft elasticity, is attached with a hole C having a diameter of about 100 mm.

The thickness of this sponge board D is the thickness of the winding frame 2 (8
mm), the value is 3 mm, which is approximate to the tape width (3.8 mm), that is, the maximum height difference between tape 3 and winding frame 2 is 4.2
The value is approximate to mm.

If the winding frame 2 is inserted into this hole C and the long tape is placed on the hard disk B, the thickness of the sponge disk D will be approximately the maximum step difference between the winding frame 2 and the tape 3, so
If this level difference is less than the thickness of the sponge board D, the weight of the tape 3 and the winding frame 2 causes the winding frame 2 to
In order to hold the hard disk B as a whole in a state where the sponge disk D is compressed until it comes into contact with the tape 3, and the outer circumferential part hangs down due to the weight of the tape 3, and the sponge disk D prevents it from deforming into a conical shape, A device that can prevent the deformation of the winding shape of a long tape during storage and transportation, and prevent the deformation from unraveling when lifting the long tape, installing it on a recorder, or due to loose tape winding. It is.

In addition, a hole A having the same shape and size as hole 1 of the reel frame 2 is formed in the hard disc B, and a non-slip hole A is formed in the hole 1 of the reel frame 2 and protrudes toward the reel shaft side of the recorder. Three grooves 1 that are engaged with the protrusions for
A recess A ₁ corresponding to A ₁ is formed.

Therefore, when a long tape is loaded into a recorder, the winding prevention board of the present invention can be attached to the reel shaft of the recorder, thereby preventing the occurrence of slippage that occurs when the long tape is rotated during loading and recording. It is possible to prevent unwinding.

In the above embodiments, the outer shapes of the hard disk B and the sponge disk D are circular, but they may be polygonal in consideration of transportation and storage. In this case, the hard disc B and the sponge disc A may be integrally processed using the same material.

As described above, in the present invention, if a long tape is placed with the reel aligned with the center hole of the sponge disk, the sponge disk will be compressed by the weight of the long tape.
Since the hard disc holds the tape while maintaining its level difference, the weight of the long tape causes the rolled shape to deform into a conical shape, and the tape winding loosens due to the difference in shrinkage rate due to temperature. Since it is possible to prevent the tape from becoming unrolled during storage, it is possible to prevent one roll of the long tape from becoming unusable due to the unwinding. In addition, a hole was formed in the hard disc that matched the hole in the reel, and a recess was formed in this hole to match the groove in the reel, allowing the long tape to be attached to the reel shaft of the recorder. Since the winding prevention disc can be attached at the same time as the tape is being mounted, it is possible to prevent winding slippage that occurs when the long tape is rotated during installation and recording.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of the rolled long tape, Figure 2
The figure is a sectional view of the embodiment of the present invention with a long tape placed thereon, and FIG. 3 is a plan view of the embodiment of FIG. 2. 2... Winding frame, 3... Tape, A... Hole, B...
Hard disk, C...hole, D sponge disk.

Claims (1)

[Scope of utility model registration request] a soft elastic sponge disk having a hole diameter that is approximately the same as the outer diameter of the winding frame of the long tape being wound, and a thickness that approximates the difference between the thickness of the winding frame and the width of the long tape;
A hole having a diameter substantially the same as that of the winding frame is formed,
a hard disk made of metal or the like stuck to the sponge disk;
A concave portion is formed in the hole of the hard disc to coincide with three grooves that are engaged with anti-slip protrusions formed in the hole of the reel frame and protruding toward the reel shaft side of the recorder. Features a roll prevention board for long tapes.