JPS60242566A - Drum type magnetic recording device - Google Patents

Abstract

PURPOSE:To reduce the occupation volume of a recording medium during storage by forming the recording medium in a flat plate shape and winding it around a drum for use. CONSTITUTION:When an operation indication is made, a loading mechanism operates and the recording medium 13 is taken out of a package 12 to the drum 18 by the rotation of takeout rollers 17a and 17b and brought into press contact with the drum 18 by a feed roller 17c across the adhesive layer 16 on the surface. Consequently, the medium 13 is joined to the drum 18 because of the adhesive layer 16 while peeled off the adhesive layer 15 of a base 14. Then, the drum 18 rotates together with the roller 17c and the medium 13 is wound around the outer periphery of the drum 18. Thus, the medium 13 is taken up and then the rollers 17a,17b, and 17c reverse to store the base 14 in the package again.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a magnetic recording device for recording audio and video using magnetism, and particularly relates to a drum-type magnetic recording device using a sheet-shaped recording medium. .

[Technical Background of the Invention] Conventionally, there are magnetic recording devices that use disks or tapes as recording media, and are used for audio, video, etc.

In such magnetic recording devices, improvements in sound quality, image quality, and retention performance are of course sought after, but in recent years, with the increase in the amount of information, there has been a trend toward smaller size and larger capacity recording. is strongly demanded by society.

Therefore, currently, with the aim of increasing the density of magnetic recording devices,
Various types of research and development are underway, but the ones that are attracting particular attention at this stage are technologies that use vertical magnetization instead of conventional horizontal magnetization, and technology that uses laser heat to generate a single point or compensate. These are two types of magneto-optical recording devices that utilize temperature. The former is scheduled to be put to practical use in tapes, floppy disks, etc. in the near future, and is suitable for flexible media. The latter will be put to practical use mainly in magnetic disks, etc., and is expected to be used for audio, video, data files for combi coaters, and the like.

Incidentally, while tape generally has the advantage of having a simple device structure, large capacity, and low unit price per bit, the structure of winding a long tape lengthens the access time during use. However, when used for video etc., there is a drawback that special playback such as still images and slow playback is not good. On the other hand, disks can be accessed by simply moving the recording section (and detection section) in parallel, so the access time is much shorter than that of tapes, and if the detection section is fixed, still images can be easily played back. Therefore, it is especially suitable for digital recording such as still image recording and paper printing files.

However, with the exception of optical discs, it is difficult to rewrite on discs, making them unsuitable for flexible media.In addition, compared to tapes, mechanisms such as tracking and servo are more complex, making them more susceptible to vibration and shock. Furthermore, when low-speed recording is performed such as on an audio record, there are drawbacks such as an invalid area occurring inside the disk due to the difference between the inner and outer circumferences.

In this way, conventional tapes and disks have advantages and disadvantages,
It is becoming impossible to respond to the increasingly diverse needs. For example, in an in-vehicle system, starting with the map file in the navigation system,
A digital recording file system that is directly connected to the disk play that will be introduced in cars in the future is required.
From the viewpoint of operability, it is essential to make this space smaller. From this point of view, it has been desired to develop a new type of magnetic recording device that has the advantages of conventional tapes and disks.

In order to solve the problems of the prior art as described above, the applicant
We proposed a magnetic recording device as shown in Figure 1. That is, this magnetic recording device has a structure in which a drum-shaped recording medium 1 is rotated, and a recording section 2 (or a detection section) is moved along the inner circumference or outer circumference of the drum in the direction of the drum axis.
Similar to disk media, the recording section 2 (or the detection section) is parallel to each other, so the access time is shorter than that of tape, and the detection section is fixed, making it easy to play back still images. Moreover, unlike a disk, there is no difference in circumference depending on the position of the recording section 2 (or the detection section), so no invalid area is generated, and the mechanism can be simplified compared to a disk medium.

[Problems with cost technology] However, drum-type recording devices have a disadvantage in that they are inconvenient to carry and store because they occupy a larger volume per unit of information than tapes or disks. In particular, in places where storage space for the device itself and recording media is limited, such as in vehicles, the disadvantage of the volume occupied by drum-type magnetic recording devices can be fatal. It was a good thing to say.

[Object of the Invention] The present invention was proposed in order to solve the problems of the prior art as described above. An object of the present invention is to provide a drum-type magnetic recording device.

[Summary of the Invention] The drum-type magnetic recording device of the present invention is a recording medium unit in which a recording medium is adhered to a flat support via an adhesive layer, and this is housed in a package equipped with a door. 1~ and
When the recording medium unit 1 is installed, there is a loading mechanism that takes out the flat recording medium from inside the package, a rotating drum that wraps the recording medium taken out by this loading mechanism, and a rotating drum that moves in the axial direction of the drum. Recording (or playback) on a recording medium wrapped around a drum
It is equipped with a recording section (or a detection section) that performs the following.

[Example of the Invention] Although the present invention as explained above can in principle also be applied to a magneto-optical recording device, here, the present invention is particularly applied to a system using perpendicular magnetism. Examples will be specifically described with reference to FIG. 2 and the subsequent drawings.

FIGS. 2 and 3 are a perspective view and a sectional view of a recording medium unit 10 according to the present embodiment. and a recording medium 13 inserted therein.As shown in the enlarged cross-sectional view of FIG. Further, an adhesive layer 1G is formed on the surface of the recording medium 13 to be attached to the drum.

On the other hand, the main body of the recording apparatus into which this recording medium unit 10 is mounted is equipped with a loading mechanism for taking out the recording medium 13 from the package 12, as shown in FIG. In this embodiment, this loading mechanism includes take-out rollers 17a and 17b inserted into an opening 12a at the bottom of the package 12.
, and a feed roller 17G that conveys the recording medium 13 taken out from the package 12 to the drum side.

The drum 18 is driven by a rotating system via a rotating shaft 18a, and both magnetic poles of the recording section are fixed at a constant interval, one auxiliary magnetic pole on the inside and the main magnetic pole 20 on the outside. caught in between. Then, as the drum 18 rotates, the recording section is moved parallel to the axial direction of the drum 18.
It is configured to move around the drum 18 relatively.

At this time, the magnetic flux is changed by the auxiliary magnetic pole 19, and the main magnetic pole 2
By magnetizing 0, recording is performed on the recording medium 13 at the same point.

The operation of the present invention having the above configuration is as follows.

That is, when an operation instruction is given, the loading mechanism is activated, and by rotation of the take-out rollers 17a, 17b, the recording medium 13 inside the package 12 is taken out to the drum 18 side. The roller 17c presses the recording medium 13 to the drum 18 via the adhesive layer 16 on the surface.As a result, the recording medium 13 is separated from the adhesive layer 15 of the support 14 and is joined to the drum 18 by the adhesive layer 16 on the surface. After this, the drum 18 rotates together with the feed roller 17c, and the recording medium 13 is transferred to the drum 1.
It can be wrapped around the outer circumference of 8. When the winding of the recording medium 13 is completed, the take-out rollers 17a, 17b and the feed roller 1
7c rotates in the opposite direction, the support body 14 is stored in the package 1 again, and after recording and playback is completed, after taking out the support body 14, by the reverse operation to the above,
By pressing the recording medium 13 onto the support 14, the recording medium 13 is wound up from the drum \18, bonded onto the support hole 171, and stored in the package 12 in the same manner as the storage of the support 14. Ru.

As described above, in the drum-type magnetic recording device of the present invention, the recording medium 13 is configured in a flat plate shape, and recording or reproduction can be performed by winding the recording medium 13 around the drum only when in use. It takes up much less space than conventional models and is convenient to carry.

Furthermore, since the recording medium 13 is stored in a highly dust-proof package, there is no fear that the quality of the recording medium 13 will deteriorate.

Note that in this embodiment, the recording medium 13 and the drum 18 are bonded using the adhesive layer 16, but the present invention is not limited to this. .

Further, as described above, the present invention can be similarly applied to a magneto-optical recording type device, and the same effects can be obtained.

[Effect of the invention] As explained above, according to the present invention, the recording medium is formed into a flat plate, and the opening is wound around the drum only when in use, which greatly saves space during storage. It is possible to obtain a drum-type magnetic recording device that can be reduced in size, space can be used effectively especially when used in a vehicle, and is extremely convenient to use.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view showing a conventional drum-type magnetic recording device, and FIGS. 2 to 5 are views showing an embodiment of the drum-type magnetic recording device according to the present invention. 4 is an enlarged sectional view showing the recording medium, and FIG. 5 is a sectional view taken along line 7I when the drum of the recording medium is removed. 10... Recording medium unit, 11... Lid, 12...
・Package, 13...Recording medium, 14...Support, 1516...Adhesive layer, 17a to 17c river roller, 1
8...Drum, 19...Auxiliary magnetic pole, 2o...Main magnetic pole Figure 1, Figure 2t! 1

Claims (1)

[Scope of Claims] (1) A recording medium unit comprising a recording medium adhered to a flat support via an adhesive layer and housed in a package equipped with a door, and this recording medium unit. A loading mechanism that takes out a flat recording medium from inside the package when it is loaded, a rotating drum that wraps the recording medium taken out by this loading mechanism, and a rotating drum that wraps the recording medium on the drum while moving in the axial direction of the drum (IJL). A drum-type magnetic recording device characterized by a mouth equipped with a recording section or a detection section for recording and reproducing information on and from a recorded recording medium.(2) The recording medium has a layer on its surface that is sticky to the surface of the drum. A drum-type magnetic recording device according to claim 1. (3) A drum-type magnetic recording device according to claim 1, wherein the rotating drum has a recording medium wound around its surface by electrostatic action. Magnetic recording device.