JPS632972Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a tape eraser that demagnetizes the magnetic tape in a magnetic tape cartridge while running it. It also has the function of a tape winder that can rewind.

[Conventional technology]

This type of tape eraser which also has the functions of the tape winder described above is known from Japanese Utility Model Application No. 56-68241. There, a degaussing head is detachably attached to a stationary tape eraser, and when the degaussing head is attached, it performs a degaussing function, and when the degaussing head is removed, it functions as a simple tape winder.

[Problem that the invention attempts to solve]

However, conventional tape erasers have a take-up shaft and a supply shaft upright on the top surface of the eraser body, which engage with the tape winding hub built into the magnetic tape cartridge, and a take-up shaft on the eraser body. It is a stationary type with built-in driving means such as a rotational motor and power supply, and only the degaussing head can be attached or detached. Therefore, not only when demagnetizing the magnetic tape, but also when fast forwarding or rewinding the magnetic tape without demagnetizing it, a magnetic tape cartridge must be loaded onto the top surface of the eraser body each time.

In other words, since the conventional tape eraser is a stationary type, it is extremely inconvenient to move the tape eraser to another location or to carry it around for use as a tape winder.

On the other hand, it is not a good idea to prepare a tape eraser and a tape winder separately, as this would require duplicate drive means for running the magnetic tape, and it would be difficult to keep track of the location of each.

Therefore, the present invention has been proposed in order to solve these conventional problems in a tape eraser that also has a tape winder function.

The purpose of the present invention is to provide a tape eraser which is basically a stationary type, but which can be easily carried when used as a tape winder.

An object of the present invention is to simplify the structure and reduce manufacturing costs by sharing a drive system for running the magnetic tape during demagnetization and simple fast-forwarding and rewinding of the magnetic tape.

[Means for solving problems]

The present invention consists of an eraser main body 10 having a degaussing head 15 on one side of a mounting surface 12 on which a magnetic tape cartridge 1 is mounted, and a mounting surface 18 on which a magnetic tape cartridge 1 is mounted. It consists of a tape winder 16 which has a take-up shaft 19 and a supply shaft 20 erected and is provided with means for rotationally driving the take-up shaft 19.

A recess 13 is formed in the mounting surface 12 of the eraser main body 10, and a tape winder 1 is inserted into this recess 13.
6 can be detachably mounted so that their mounting surfaces 12 and 18 are substantially flush with each other.

[Effect]

When demagnetizing the magnetic tape 6, the tape winder 16 is attached to the recess 13 of the eraser body 10, and the eraser body 10 and the tape winder 16 are connected to each other.
The magnetic tape cartridge 1 is set on the mounting surfaces 12 and 18 of the magnetic tape cartridge. Now, the tape winding hubs 4, 4 built into the magnetic tape cartridge 1 engage with the winding shaft 19 and the supply shaft 20 on the tape winder 16, respectively, and drive the winding shaft 19 to rotate. Thus, the magnetic tape 6 can be demagnetized by the demagnetizing head 15 while running.

When fast forwarding or rewinding the magnetic tape 6 without demagnetizing it, the tape winder 16 is removed from the recess 13 of the eraser body 10. Then, by setting the magnetic tape cartridge 1 on the mounting surface 18 of the tape winder 16 and engaging the take-up shaft 19 and the supply shaft 20 in the same way with each hub 4, 4, the tape winder 16 The magnetic tape 6 can be made to travel by rotationally driving the winding shaft 19 using a drive means provided therein.

[Effect of idea]

According to the tape eraser of the present invention, when the tape winder 16 is attached to the eraser main body 10, the original demagnetization can be performed while running the magnetic tape 6, and when the tape winder 16 is removed from the eraser main body 10, the demagnetization can be performed. You can fast forward or rewind the magnetic tape 6 without having to
It is convenient because it can be used on different tables.

In particular, the tape winder 16 has a winding shaft 19 and a supply shaft 20 erected on a mounting surface 18, and is equipped with means for rotationally driving the winding shaft 19, and is portable and can be used alone. Therefore, it can be separated from the eraser main body 10 and easily moved or carried around. Therefore, it is advantageous when the magnetic tape 6 is rewound and immediately recorded or reproduced, regardless of whether it is outdoors.

Moreover, when demagnetizing the magnetic tape 6,
Since the winding shaft 19 of the tape winder 16, the supply shaft 20, and the driving means of the winding shaft 19 are shared,
Accordingly, the structure can be simplified and manufactured at low cost.

Further, when not in use, the tape winder 16 can be fitted into the recess 13 of the eraser main body 10 and mounted integrally, so it has the advantage of not being bulky and making it difficult to lose sight of where it is.

〔Example〕

The drawings show an embodiment of the tape eraser according to the invention.

FIG. 1 illustrates a magnetic tape cartridge. This magnetic tape cartridge 1 has shaft insertion holes 3, 3 vertically penetratingly formed on the left and right sides of the center of a main body case 2, and a pair of left and right hubs 4, 4 are provided in each shaft insertion hole 3 in the main body case 2. , 3 are aligned and stored. Both ends of the magnetic tape 6 are locked and wound around each hub 4, 4, and the magnetic tape 6 is fed out from one hub 4 to an erasing head that opens on the front of the main body case 2, and a magnetic tape for recording and playback. Insertion windows 7, 8 for heads and pinch rollers, etc.
This is a standard specification in which the hubs 9 are run one after the other and wound onto the other hub 4.

FIG. 2 shows an example of a tape eraser main body according to this invention, and the upper surface of a case 11 of this eraser main body 10 has a mounting surface 12 on which a magnetic tape cartridge 1 is mounted horizontally. Side 1
A groove-shaped recess 13 is formed in the left-right direction approximately in the center of the mounting surface 12 in the front-rear direction, and a rising wall 14 is formed in the left-right direction on the rear side of the mounting surface 12. The main body case 11 includes a circuit (not shown) that generates a degaussing electric signal and a power source such as a battery that supplies power to this circuit. A demagnetizing head 15 for converting the demagnetizing electric signal into a magnetic field is provided in a position facing the mounting surface 12.

FIG. 3 shows an example of a pocket-type tape winder that is detachably installed in the recess 13 of the eraser main body 10, and the magnetic tape cartridge 1 is installed horizontally on the upper surface of the main body case 17 of this winder 16. It has a mounting surface 18. On the left and right sides of this mounting surface 18, a winding shaft 19 that is driven to rotate at high speed in a certain direction by a motor (not shown) installed in the main body case 17 is provided upright, and at a certain distance from the winding shaft 19. The supply shaft 20 is set upright. When the tape winder 16 is fitted into the recess 13 of the eraser body 10 as shown in FIG. It is set as. In addition, with the winder 16 fitted and installed, the magnetic tape cartridge 1 is placed from above on the mounting surfaces 18 and 12 with the front surface facing backward, and the supply shaft 20 is attached to one hub 4 and the other When the winding shafts 19 are inserted into the respective hubs 4, the degaussing head 15 is inserted into the recording/playback magnetic head insertion window 8 on the front side of the magnetic tape cartridge 1, the erasing head insertion window 7 adjacent thereto, or the pinch roller insertion window 9. It is set to be inserted. Note that power switch buttons 21 and 22 are protruded from the mounting surfaces 18 and 12 of the tape winder 16 and the eraser main body 10 so as to be able to appear and retract freely, and the winding shaft 19 is located inside the case 17 of the tape winder 16. In addition to the drive motor, there is a built-in battery that is the power source for this motor.

In such a case, as shown in FIG. 4, the tape winder 16 is fitted into the recess 13 of the eraser main body 10 and installed, so that the mounting surface 12 and
When the magnetic tape cartridge 1 is placed on the hub 18 from above with the front side facing backward, one of the hubs 4
The supply shaft 20 is inserted into the other hub 4, and the take-up shaft 19 is inserted into the other hub 4, and the degaussing head 1 is inserted into the front insertion window 8 or either the insertion window 7 or 9.
5 inserts. At the same time as the magnetic tape cartridge 1 is placed, the power switch buttons 22 and 21 are pressed, and power is supplied to the degaussing electric signal generation circuit in the eraser main body 10, and the take-up shaft 19 is rotated and the supply shaft is The magnetic tape 6 wound on the hub 4 on the 20 side is rapidly fed to the hub 4 on the winding shaft 19 side while being demagnetized by the demagnetizing head 15.

When only fast-forwarding the magnetic tape 6 in the magnetic tape cartridge 1, the tape winder 16 is removed from the recess 13 of the eraser body 10. Then, move the magnetic tape cartridge 1 into the tape winder 16.
When the supply shaft 20 and the take-up shaft 19 are inserted into each hub 4, 4, the magnetic tape 6 is placed on the mounting surface 18 of Fast forward to 4.

In the above embodiment, the eraser body 10 and the tape winder 16 each have a built-in power source such as a battery, but instead of this, only the tape winder 16 has a built-in power source, and this winder 16 is set in the eraser body 10. At this time, the power source of the winder 16 may also be used as a power source for supplying power to the degaussing electric signal generation circuit in the eraser body 10 via a contact provided between the winder 16 and the eraser body 10.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of a magnetic tape cartridge that is demagnetized or fast-forwarded by the tape eraser according to this invention, FIG. 2 is a perspective view showing the main body of the tape eraser according to this invention, and FIG. 3 is a perspective view showing the tape eraser according to the invention. FIG. 4 is a perspective view of the tape winder used in combination with the tape eraser main body, and FIG. 4 is a perspective view showing the combined state of the tape eraser main body and the tape winder. 1...Magnetic tape cartridge, 4...Hub,
7, 8, 9... Insertion window, 10... Eraser main body, 12... Placement surface, 13... Recess, 15... Demagnetizing head, 16... Tape winder, 18... Placement surface, 19... Take-up shaft, 20...supply shaft.

Claims (1)

[Scope of Claim for Utility Model Registration] A mounting surface 12 on which a magnetic tape cartridge 1 is mounted, which is equipped with a pair of hubs 4, 4 and has an insertion window 8 for a recording/playback magnetic head or the like on the front surface.
an eraser main body 10 having a degaussing head 15 inserted into the insertion window 8 on one side of the mounting surface 12; and a mounting surface 18 on which the tape cartridge 1 is mounted. A take-up shaft 19 and a supply shaft 20 which are removably engaged with each of the hubs 4, 4 are erected on this mounting surface 18, and a portable device is provided with means for rotationally driving the take-up shaft 19. A recess 13 is formed in the mounting surface 12 of the eraser main body 10, and the tape winder 16 is inserted into the recess 13 so that the mounting surface 18 of the tape winder 16 and the mounting surface 12 of the eraser main body 10 are connected to each other. A tape eraser with a magnetic tape cartridge that is removably attached so that it is approximately flush with the surface.