JPS6266485A - Magnetic tape cartridge - Google Patents

Abstract

PURPOSE:To prevent damage to a tape and a hook by providing a hole inserted with a claw of the hook to the tip of a leader tape, engaging the hook of a magnetic tape with a hole of the leader tape at tape loading and extracting a magnetic tape in a cartridge. CONSTITUTION:The hook 21 is fixed to the magnetic tape 5 of the cartridge and the hole engaged with the hook 21 is provided to the leader tape. The tip of the leader tape 18 is slid in a guide slit 9 at tape loading and the magnetic tape 5 is suppressed, then the friction with the guide slit 9 is unstable and the manufacture of the leader tape 18 at the exit of the guide slot 9 has variance, then the magnetic tape 5 is connected to the leader tape 18 by one hook 21, thus the hook 21 is not slid in the guide slit while being tilted. Thus, the magnetic tape 5 is extracted smoothly in the leader tape 18 to prevent damage to the tape and hook 21 and the reliability of tape loading is improved remarkably.

Description

[Detailed Description of the Invention] [Summary] A magnetic tape cartridge, which when loading a tape,
One hook was provided at the leading end of the tape so that it could be reliably engaged with the leading end of the leader tape wound around the machine reel of the magnetic tape device.

Furthermore, the hook structure allows the magnetic tape to be easily fixed, making it easy to replace and repair the magnetic tape.

[Industrial application field]

The present invention relates to a single reel type magnetic tape cartridge used in a magnetic tape device.

A single reel type cartridge used in a magnetic tape device is small and convenient to carry, but since there is only one reel inside the cartridge, it is necessary to wind the magnetic tape around the magnetic tape device by some means.

For this reason, when loading a tape, the tape that is wound around the machine reel of the magnetic tape device picks up the leading edge of the magnetic tape inside the cartridge, engages the leading edge of the magnetic tape, and pulls it out, but it is difficult to pull it out smoothly. There was a need for a magnetic tape cartridge that could be pulled out smoothly.

[Conventional technology]

For example, a conventional magnetic tape device is shown in FIG. FIG. 4(a) is a plan view, and FIG. 4(b) is a front view, excluding the cartridge.

In the figure, there is a hub 3 directly connected to a reel motor 2 on a base 1, and a reel 4 of a cartridge nozzle is inserted into the hub 3. There is a machine reel 6 on the side of the fork device that winds the magnetic tape 5 wound on the reel 4, and the machine reel 6
is fixed to a winding hub 8 directly connected to the reel motor 7. A glue tape is wound around the machine reel 6 for pulling out the magnetic tape 5 in the cartridge. In addition, 9
1 is a guide groove provided on the base for pulling out the magnetic tape 5, and a groove opposite to the guide groove 9 is also provided on the lid (not shown). 11 is a hammer, which is driven by a solenoid 12 in the direction of the arrow.

Figure 5 (a) shows a single reel type cartridge 13.
There is a loop 4 around which a magnetic tape 5 is wound inside the cartridge, and a hook 15 at the tip of the tape.The hook 15 is held in place by a spring 16 as shown in FIG. 5(b). . Note that 17 is a cover which, when attached to the magnetic tape device, opens as shown by the dotted line to allow the magnetic tape 5 to be pulled out.

At the time of tape loading, when the cartridge 13 is attached to the magnetic tape device, the machine reel 6 is driven, and the leading end of the leader tape 1B moves in the guide groove 9 and is picked up as shown by the dotted line a in FIG. 4(A). Then, the hammer 11 is driven and struck upward in the figure.

At the tip of the magnetic tape 5 wound on the reel 4, as shown in FIG. 6(A), there are two hooks having ears B on both sides that engage with the guide grooves 9 shown in FIG. 4(A). 19 are provided. On the other hand, the leader tape 18 is also provided with a hole 20 into which the hook 19 is inserted, as shown in FIG. is inserted into hole number 20. Next, the machine reel 6 rotates to take up the leader tape 18, and the magnetic tape 5 is pulled out.

[Problem that the invention seeks to solve]

Conventionally, when pulling out the magnetic tape 5 from the cartridge 13, the leading end of the leader tape 18 slides in the guide groove 9 to pick up the magnetic tape 5. Since the leader tape 18 is made of resin (film), it is frictionally unstable when sliding in the guide groove 9, and the leader tape 18 comes out unevenly at the exit of the guide groove 9, so the hook 19 of the magnetic tape 5 is only on one side. It is pulled out in the inserted state (this state is a retention error and has an occurrence rate of 3/1000 times). If only one side is secured, the hook 19 slides diagonally inside the guide groove 9, so it may not slide smoothly and the tape may break, or the hook 19 may be damaged.
There was a problem that it could be damaged by force.

[Means for solving problems]

FIGS. 1(A) and 1(B) are diagrams explaining the present invention in detail.

FIG. 1(a) At the tip of the magnetic tape 5 wound around the beam 4, a single hook 21 is provided, which has an ear B that engages with the guide groove of the device and a claw C at the tip. Claw C of said one hook 21
A hole 22 into which is inserted is provided at the tip of the leader tape 18. When loading a tape, the hook 21 of the magnetic tape 5 is engaged with the hole 22 of the leader tape 18, and the magnetic tape 5 inside the cartridge is pulled out.

[Effect]

That is, when the leading end of the leader tape 18 slides within the guide groove 9 and picks up the magnetic tape 5 during tape loading, the friction with the guide groove 9 is unstable and the leader tape 1 at the exit of the guide groove 9 is
Even if the protrusion of the magnetic tape 8 varies, the leader tape 18 and the magnetic tape 5 are connected by one hook 21. Since there is only one hook, the hook 21 does not slide diagonally inside the guide groove, so the magnetic tape 5 can be pulled out smoothly. As a result, damage to the tape and the hook 21 can be prevented.

〔Example〕

FIG. 2 is a diagram illustrating the present invention in detail, in which (a) is a front view, (b) is a plan view, and (c) is a sectional view taken along line AA in figure (b). Note that the same reference numerals refer to the same objects throughout the plan.

In the figure, the zero hook 21 is made of resin (polycarbonate), has a hook-shaped claw 23 at the tip, a square hole 24 in the center, and press-fits a plug 25 into the square hole 24.
Fix the magnetic tape 5. In addition, both sides have ears B (groove equivalent 0.8 mm in the example) that engage with the guide groove (width 1.21 m) of the device.

The hook 21 is fixed to the magnetic tape 5 of the cartridge, and a hole is provided in the leader tape to engage with the hook 21. When the tape is loaded, the tip of the leader tape 18 is inserted into the guide groove. When the leader tape I8 slides inside the guide groove 9 and picks up the magnetic tape 5, even if the friction with the guide groove 9 is unstable and the extent of the leader tape I8 coming out of the guide groove 9 varies, the magnetic tape 5 Since the main hook 21 is connected to the leader tape 18, the single hook 21 does not slide obliquely within the guide groove. Therefore, the magnetic tape 5 is the leader tape 1
8, the tape and the hook 21 can be pulled out smoothly, and damage to the tape and the hook 21 can be prevented.

As a result, the number of errors in engagement between the magnetic tape 5 and the leak tape 18 (engagement on only one side) is reduced by 2 to 3 compared to the conventional two hooks.
What used to be /1000 times became 0 /1000 times.

FIG. 3(A) (IJ) shows another embodiment of the present invention. In the figure, the hook 26 is made up of a main body 27 and a movable lid 28. The main body 27 has a hook-shaped claw 23 at its tip and a protrusion 29 in the center for holding the tip of the magnetic tape. A hole 30 is provided to engage the projection. Since the thickness of the magnetic tape 5 is as thin as 30 μm, the magnetic tape 5 is inserted between the movable lid 28 and the protrusion 29 of the main body, and the movable lid 28
It can be fixed by closing.

If the tape breaks and the hook breaks at the tip of the magnetic tape 5, by using the hook 26, there is no need to press and fix the magnetic tape 5 with a plug as in the past, and you can simply open the movable lid 28. All you have to do is close it, and it can be easily replaced and repaired.

〔Effect of the invention〕

As explained above, according to the present invention, by employing a single hook, damage to the tape and the hook due to mis-engagement between the magnetic tape and the leader tape can be prevented, and the reliability of tape loading can be greatly improved. is big.

[Brief explanation of drawings]

Figures 1 (a) and (b) are diagrams explaining the present invention in detail, Figures 2 (a) to (c) are diagrams explaining the invention in detail, and Figures 3 (a) and (b) are diagrams explaining the present invention in detail. Figures 5 (a) and (b) illustrate a single type cartridge; Figures 6 (a) and (b) illustrate a conventional method of combining magnetic tape cartridges; It is a diagram. In the figure, 4 is a reel, 5 is a magnetic tape, 18 is a leader tape, 21 is a hook, 22, 24, 30 are holes, 23 are claws, 25 is a plug, 26 is a hook, 27 is a main body, 28 is a movable lid, (a) 2A 2ne・superior-moe d96 wap e use? 'l, i no to, σH
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Claims (2)

[Claims] (1) A magnetic tape device equipped with a machine reel having a leader tape (18), and a magnetic tape having a hook at the tip of the magnetic tape (5) to engage with and pull out the leader tape (18) during tape loading. the cartridge, the hook at the tip of the tape (5) being connected to the leader tape (5);
A magnetic tape cartridge characterized in that it is formed with a single hook (21) to be engaged with the magnetic tape cartridge (18). (2) The hook consists of a main body (27) and a movable lid (27), and a protrusion (29) is provided on the main body (27) to sandwich the tip of the magnetic tape (5). 2. A magnetic tape cartridge according to claim 1, characterized in that said movable lids (27) are each provided with engaging holes (30).