JPH0584580B2 - - Google Patents

Description

[Detailed description of the invention] [Field of invention] The present invention relates to improvements in tape drives.

[Prior art]

The present inventor has previously developed a so-called flat type tape drive device (Japanese Unexamined Patent Publication No. 59-27335, Japanese Patent Application No. 59-27335,
27842)). Briefly,
The flat tape drive device includes a plurality of elongated first rollers arranged in parallel to each other, a elongated second roller extending parallel to the first roller, and a second elongated roller wound from one end to the corresponding first roller. It consists of a plurality of tapes that are wound together on a roller from the other end, and roller rotation means. Tape drive means of this type operate satisfactorily and very quickly to call into position the desired portion of the tape.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to improve the tape drive described above, reduce the number of tapes by half, and provide an even more inexpensive tape drive with a simpler structure.

[Structure of the invention]

According to a preferred embodiment, the tape drive of the present invention, like the tape drive of the prior art, comprises a plurality of elongate first rollers arranged parallel to each other and extending parallel to the first rollers. and an elongated second roller, but two adjacent first rollers are associated as a pair, and one roller is attached to each pair.
Relate the book tape. Then, for each pair of rollers (roller A, roller B), a corresponding tape is wound around roller A from one end with one side inside, and the tape is passed around roller B with the other side inside, The tape is wound together from the other end around the second roller. In such a configuration,
By utilizing both sides of the tape, one tape needs to be provided for each of the two first rollers, so the number of tapes is halved compared to the above-described tape drive device according to the prior art.

〔Example〕

Preferred embodiments of the present invention will be described with reference to the drawings.

First, to briefly explain the flat type tape drive device previously developed by the present inventor, this drive device, as shown in FIG. an elongated second roller 2 extending parallel to the first roller 1;
The second roller 2 is wound around the roller 1 from one end, respectively.
It consists of a plurality of tapes 3 wound together from one end to the other, and suitable known drive means (not shown) for driving these rollers 1, 2 in rotation synchronously. Although this flat type tape drive works satisfactorily, there are as many tapes as there are first rollers, making the device relatively cumbersome and somewhat expensive to assemble.

On the other hand, the tape drive device of the present invention has a second
As shown in the figure, a plurality of elongated first rollers 11 (for each pair , roller 11A, roller 11
B), a tape 13 associated with each pair of first rollers, an elongated second roller 12 extending parallel to the first roller 11, and first and second rollers 11,1
2 (the third
Figure). Each corresponding pair of rollers 11A,
11B, the tape 13 is wound around the roller 11A from one end with one side F facing inside, is supported and guided by the roller 11B, and passes around the roller 11B with the other side of the tape inside. The tape 13 extends to the second roller 12 and is wound around the second roller together from the other end of the tape. In one example of a known driving means for rotationally driving these tapes 13, as shown in FIG.
It consists of gears 16 and 17 of the same diameter that are fixed to the end shafts 14A and 14B of rollers A and 11B and mesh with each other, and a gear 18 that is fixed to the end shaft 15 of the second roller 12 and meshes with one of the gears 16. . When the gear 18 is rotated in one direction (in the direction of the arrow) by a step motor or a pulse motor (not shown), the tape 13 is simultaneously wound around the second roller 12, and when the gear 18 is rotated in the opposite direction, The tape is simultaneously wound around each first roller 11A. 1st roller 1
The other surface of the tape is exposed to the outside on the surface of the roller 1A, and the one surface F of the tape is exposed to the outside on the surface of the first roller 11B. Similar to the tape drive device disclosed in Japanese Patent Application No. 59-27844, both sides of the tape are used simultaneously.

Therefore, the tape drive of the present invention performs substantially the same function as the flat type tape drive with half the number of tapes compared to the flat type tape drive described above.

Although the present invention has been described based on preferred embodiments, the present invention is not limited to these embodiments. For example, there may be only one pair of first rollers, the shape of the first roller may be a regular triangular cross section or another regular polygonal cross section, and the roller driving means may be an appropriate known one (for example, a toothed belt). ) is fine. Also, the first roller 1
As shown in FIG. 4, the tape 13 is wound around the first roller 11B from one end with one side inward, wrapped around the first roller 11A, and then wrapped around the second roller 12 from the other end. You can also wrap them together.

The tape drive device of the present invention also has the same features as the series of flat tape drive devices previously developed by the present inventor.
All the tapes can be moved by the same amount at the same time extremely quickly and the tape can be positioned accurately, so the item variable code selector (multi-function keyboard),
It can be used in telephone exchanges, map systems, image files, and various other applications.

〔Effect of the invention〕

Due to the above configuration, the present invention provides a tape drive device that requires only half the number of tapes, has a simple structure, and is inexpensive.

[Brief explanation of drawings]

FIG. 1 is a schematic side view of a flat type tape drive device previously developed by the present inventor. Figure 2 shows part 1 of the present invention.
FIG. 1 is a schematic side view of a tape drive device according to an embodiment. Third
The figure is a side view showing one example of roller driving means. FIG. 4 is a schematic side view of the tape drive device of the present invention showing another tape winding method. 11A, 11B...pair of first rollers, 12
...Second roller, 13...Tape.

Claims (1)

[Scope of Claims] 1. A pair or more of elongated first rollers arranged parallel to each other and having a circular cross section or a regular polygonal cross section, and an elongated second roller extending parallel to the first roller; In a tape drive device comprising a tape associated with a first roller and a driving means for rotationally driving the first roller and the second roller, each tape is connected to one of the paired first rollers from one end with one surface thereof inside. The tape is wound around the other first roller of the pair with the other side of the tape inside, and reaches the second roller, and the tape is wrapped together from the other end of the tape around the second roller. tape drive. 2. The tape drive device according to claim 1, wherein the first roller has a regular pentagonal cross section. 3. The tape drive device according to claim 1, wherein the first roller has a regular triangular cross section.