JPS6041001Y2 - magnetic tape device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a magnetic tape device, and has been improved so that when tape reels of various sizes are installed, the unwound magnetic tape is inserted into the tape insertion hole of the device body without slack. It relates to magnetic tape devices.

Magnetic tape devices, which write information on and read information recorded on magnetic tape, are widely used in computer systems as large-capacity auxiliary storage devices, (file devices), or input/output devices. ing.

In the conventional magnetic tape device described above, as shown in FIG. The starting end of the magnetic tape 1 fed out from the reel 2 is inserted into a tape insertion hole 3 which becomes a tape passage opening by an auto thread mechanism (not shown) that utilizes a vacuum suction force.
after automatically introducing the first vacuum column section 4,
capstan 5, magnetic head 6 and second vacuum column 7
The tape is taken up onto the other take-up reel 8 via a tape running path consisting of the following.

The magnetic tape 1 set in the above manner is
It runs at a predetermined speed by driving the capstan 5, and contacts the magnetic head 6 to write or read information.

By the way, in conventional magnetic tape devices, when setting a so-called full-size (Full 5ize) reel 2, which has a large amount of tape, in the above-mentioned usage condition, there is a gap between the reel 2 and the tape insertion hole 3. The magnetic tape 1 fed out from the reel 2 does not slacken, and can be automatically introduced into the tape insertion hole as described above.

However, if this is necessary and a small reel with a small amount of tape is used, such as a so-called half size (Half 5ize) or a quarter size (Quarter 5ize), a small reel attached as shown in Fig. 2 can be used. Reel 22 and tape insertion hole 30 facing it
Since the distance between the magnetic tape 1 and the reel 22 is about 4 to 6 cm wider than that of the full-size large reel, the starting end of the magnetic tape 1 fed out from the reel 22 can be manually threaded onto the tape without relying on the auto thread mechanism. It is necessary to insert it into the insertion hole 3.

However, in many cases, the magnetic tape 1 after insertion is not properly introduced into the tape running path, and the magnetic tape 1 is not inserted into the space between the small reel 22 and the tape insertion hole 3 as shown in the figure. 1 may sag and hang down, or due to the slack, the tape 1 may get tangled in the middle of the tape running path or go outside the tape running path, and the tape 1 may not pass through the tape running path correctly and be taken up by the other winding. There was a drawback that it was impossible to wind and set the reel.

The purpose of the present invention is to solve the above-mentioned conventional drawbacks by attaching an introduction guide for preventing the magnetic tape from loosening, which can move forward and backward in the tape running path between the reel and the tape insertion hole.
Not only a large full-size reel but also a small reel such as a half-size or quarter-size reel is installed, and the magnetic tape fed out from the reel does not sag and automatically passes through the tape running path correctly to the other side. A novel magnetic tape device that can be set to be wound onto a take-up reel is provided.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 3 is a plan view of essential parts showing an embodiment of the magnetic tape device according to the present invention, and parts equivalent to those in FIG. 1 are given the same reference numerals.

In the present invention, as shown in the figure, a tape for bridging the tape is placed on the tape running path between, for example, a half-size reel 22a (hereinafter referred to as a half-reel) attached to the supply reel motor shaft and the tape insertion hole 30. An introduction guide 31 is attached so that it can move forward and backward.

More specifically, the attachment structure of the tape introduction guide 31 is such that the introduction guide 31 is fitted into a predetermined area of the device base 32 facing the tape running path, as shown in the main part sectional view of FIG. 4, for example. A fitting groove 41 is provided, and the fitting groove 4
At one portion, the support screw 42 is biased to the left in the plane of the paper by the elasticity of the spring 43, that is, toward the tape running path.
, and a tape introduction guide 31 is attached to the support screw 42.
It has a shape in which it is pivoted.

In addition, with this attached structure, if the tape introduction guide 31 is pushed into the insertion groove 41 as necessary, it will be locked in the inserted form, and if the guide is pressed again, the locked state will be released. It has a mechanism (not shown) that can do this.

As described above, the magnetic tape device of the present invention uses the half reel 22a as a reference, and the reel 22a and the tape insertion hole 3.
Since a tape introduction guide 31 is attached between the
The starting end of the magnetic tape 1 fed out from the attached half reel 22a is automatically guided to the target tape insertion hole 3 along the tape introduction guide 31 protruding from the tape running path, and can be inserted smoothly. It becomes possible.

Therefore, the phenomenon that the magnetic tape 1 becomes slack during the tape introduction process is eliminated.

Furthermore, when a quarter-sized reel smaller than this reel 22a is attached, a gap of about 1.5 cm is created between the reel and the tape introduction guide 31 disposed protrudingly, but it is similar to the half reel 22a. In addition, the magnetic tape fed out from the reel can be smoothly inserted into the tape insertion hole 3 without sagging on the way.

Note that when a normal full-size reel 2 is installed and a fed-out magnetic tape is set through the tape insertion hole 3, the tape introduction guide 31 is pressed to fit and lock in the insertion groove 41. The conventional magnetic tape operation is possible without interfering with the rotation of the reel.

As is clear from the above description, according to the magnetic tape device according to the present invention, magnetic tape fed out from a small reel such as a half size or quarter size, as well as a large full size reel, does not sag. It has the advantage that the tape is automatically set to be wound on the other take-up reel through the correct tape running path, and the reel compatibility of the device is improved, which is extremely practical.

[Brief explanation of the drawing]

1 and 2 are schematic plan views for explaining a conventional magnetic tape device, FIG. 3 is a plan view showing an embodiment of the magnetic tape device according to the present invention, and FIG. 4 is a schematic plan view for explaining a conventional magnetic tape device. FIG. 3 is a cross-sectional view of a main part showing an embodiment of the attachment structure of the tape introduction guide shown in FIG. In the figure, 1 is a magnetic tape, 2 is a full-sized large reel, 3 is a tape insertion hole, 4 and 7 are first and second vacuum column parts, 5 is a capstan, 6 is a magnetic head, and 8 is a take-up reel. , 22 is a small reel, 22a is a half-size reel, 31 is a tape introduction guide, 32 is a device base, 41
42 represents a fitting groove, 42 represents a support screw, and 43 represents a spring.

Claims (1)

[Scope of utility model registration request] A magnetic tape is automatically wound onto the other take-up reel via a tape running path consisting of a capstan, a magnetic head, and a vacuum column from the start end of the magnetic tape fed out from the attached tape supply reel and the tape insertion hole. In the tape device, a tape introduction guide is provided in the tape running path formed between the tape supply reel and the tape insertion hole so as to be movable forward and backward from the device base according to the size of the tape reel. tape device.