JPH02281493A - small information equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to small-sized information devices such as personal computers and word processors using readable and writable information recording and reproducing devices.

[Summary of the invention]

In the compact information device equipped with the magneto-optical information recording device of the present invention, a bias coil of a magnetic field generating means that acts when erasing or writing information to the information recording device is a component of the housing of the compact information device. It is characterized by the fact that it is installed on the cover which is an element, and the installation structure in which the information recording device or the well-known FDD or HDD is installed in the small information device.

[Conventional technology]

The structure of a conventional magneto-optical information recording device used in small information devices such as small computers will be explained in detail with reference to FIGS. 4 and 5.

FIG. 4 is a side sectional view showing the main parts of the magneto-optical information recording device, and FIG. 5 is a side view.

In all the figures, reference numeral 1 denotes a mount frame that fixes the main frame 2 via vibration isolating rubber 3. The main frame 2 is the frame of the information recording apparatus, and fixes a spindle motor 4, a head 5, a slider 35, and the like. The spindle motor 4 includes a spindle 11 fixed to a rotor 9 and a spindle hub 1 fixed to the spindle 11.
Consists of 0. The head 5 includes a laser element 6,
A mirror 21, an objective lens 7, a coil stand 32, a yoke 30 connected to the coil stand 32, a bias coil 17 which is a magnetic field generating means fixed to the yoke 30, and the yoke 3.
0 and the yoke stand 32.

As shown in FIG. 5, the slider 35 has cam portions on both sides, and the cam portions are provided with dowels 33a and 3 of the holder 33.
3a is engaged. The holder 33 is provided with another dowel 33a, and the dowel 33a engages with the length of the holder support plate 34. Said slider 3
5 receives the tensile force of the slider spring 36.

The operation will be explained.

The cartridge 12 is loaded into the information recording apparatus from the state 12a and inserted into the holder 33. 12a to 12b
When this point is reached, the slider 35 is moved by the force of the slider spring 36 from the position 35a to the position 35b by a well-known trigger operation.

Due to this movement, the dowel 33a of the holder 33 moves to the 33b position. Therefore, the holder 33 lowers the cartridge 12 inside to the 12a position.

Due to this lowering movement, the known disk inside the cartridge 12 engages the spindle 11 and the spindle hub 10.

On the other hand, since the yoke 30 is engaged with the holder 33 as shown in FIG. 4, it is lowered by the force of the thin plate spring 31 as the holder 33 is lowered.

Accordingly, the bias coil 17 fixed to the yoke 30 also descends and approaches the disk on the spindle hub 10. In this way, the disk is sandwiched between the objective lens 7 and the bias coil 17 from above and below in a non-contact manner.

In this state, a laser beam 8 is emitted from the laser element 6,
The beam is reflected by the mirror 21, and the objective lens 7 is moved up and down to focus the beam on the recording layer of the disk.For well-known tracking, the entire head 5 is moved, and the objective lens 7 is moved left and right to focus the beam on the required track. Turn ON track.

When writing information, the laser beam 8 is blinked in accordance with the information while the bias coil 17 is energized so that the magnetism of the recording layer is opposite to the initial state of the disk. Then, only the area irradiated with the laser beam is heated, exceeding the Curie point. Then, when it cools down, the recording layer retains its magnetic properties and can record information.

When reading the information, the bias coil 17
is not energized, and only the laser beam 8 is irradiated onto the target track with the power lowered than when writing. Then, when the laser beam is reflected or transmitted through the recording layer, the plane of polarization of the laser beam rotates depending on the presence or absence of information due to the well-known Kerr effect or Koala-Day effect, and this is detected by an optical sensor (not shown).
It is possible to detect brightness and darkness and read information.

The case of erasing will be explained. When erasing, the bias coil 17 is energized so that the magnetism of the recording layer of the disk becomes the same as the initial state of the disk. Then, the laser beam 8 is kept lit with the same power as during the writing. Then, the portion irradiated with the laser beam 8 exceeds the Curie point and retains its magnetism when it cools down again. By doing this, it can be erased.

After using the information recording device, the cartridge 12
We will explain the case of ejecting the .

When the user operates an eject button (not shown), the slider 35 returns from the position 35b to the position 35a. At this time, the cam portion of the slider 35 acts on 33b, 33b of the holder 33, and raises the holder 33 to the position shown in FIGS. 4 and 5. Then, due to the movement of the holder 33, the cartridge 12 rises from the 12c position to the 12b position.

At this position, by the action of an ejecting means (not shown), it is further ejected to position 12a, and the ejecting operation is completed.

[Problem to be solved by the invention]

The loading structure of the information recording device used in conventional information equipment is generally called front loading, and although this structure is simple from an operational point of view, it This had the disadvantage that the device was thicker.

This is because when loading and ejecting the cartridge 12, the cartridge 12 needs to pass above the tip of the spindle 11 without interference, and for this purpose, a clearance of H shown in FIG. 4 is required. This is because the bias coil 17 had to be retracted above the holder 33 as shown in FIG. 4 so as not to interfere with the cartridge 12.

Personal computers, especially laptop computers, are becoming popular, but such portable information devices, including word processors, need to be small and lightweight.

An object of the present invention is to make these portable devices smaller and lighter, and to make an information recording device therefor smaller and lighter.

[Means to solve the problem]

The small-sized information device of the present invention consists of a key input means, a character or image display, a housing for connecting these, and an information recording device, and a part of the housing is constituted by a cover that can be opened and closed, and the cover is It is characterized in that one means of the information recording device is installed.

2. The above-mentioned one means is a magnetic field generating means of an information recording bag.

3. It consists of a key input means, a character or video display, a housing that connects these, and an information recording device, and a part of the housing is composed of a cover that can be opened and closed, and the cover and the information recording device are connected to the display. It is characterized by being placed at the rear of the body.

4. Consists of a key input means, a character or image display, a housing connecting these, and an information recording device, and a part of the housing is composed of a cover that can be opened and closed, and the cover and the information recording device are connected to the key It is characterized in that it is arranged next to the input means or the display body.

[Effect]

Since the information device according to the present invention and the information recording device installed in the information device are configured as described above, when the cartridge 12 is loaded or ejected, the cartridge 1
2 operates from above or toward the top of the spindle 11 of the information recording device, and the clearance H is not required, and the bias coil 17 is installed on the cover 18 of the portable information device, etc. Moreover, since the bias coil 17 is installed near the rotational fulcrum, the bias coil 17 can be placed close to the disk by closing the cover 18. Further, at the time of ejection, by opening the cover 18, the cartridge can be reliably ejected without interfering with the bias coil 17.

〔Example〕

As an embodiment of the present invention, a magneto-optical information recording device used in a small information device will be explained in detail with reference to FIGS. 2 and 3, and a book using the magneto-optical information recording device in FIG. Examples of a laptop computer and a word processor will be explained as small-sized information devices according to the structure of the invention.

Figure 2 is a side sectional view of the main parts of the magneto-optical information recording device;
The figure is an assembled plan view of FIG. 2.

In all the figures, 1 is a mount frame for attaching the information recording device to the information equipment, 2 is a main frame fixed to the mount frame 1 via anti-vibration rubber 3,
This is the frame of the information recording device. Main frame 2 2a
portion serves as a rotational fulcrum for the cover 18. A spindle motor 4 is a driving means for a disk 13 which is an information recording medium to be described later, and is composed of a rotor 9, a spindle 11 fixed to the rotor, and a spindle hub 10 fixed to the spindle.

5 is an optical head, which includes a laser element 6, a mirror 21,
It is composed of an objective lens 7, and the objective lens 7 is movable vertically and horizontally as in the conventional example described above. 8 is a laser beam, 12 is a cartridge containing a disk 13 which is an information recording medium, and a metal disk hub 14 is fixed to the disk 13. 15 is a well-known shutter for opening and closing the opening 12a of the cartridge 12. 16 is a bezel, which is a decorative plate of the information recording device. 17 is a bias coil which is a magnetic field generating means,
It is fixed to the inner surface of the cover 18 of the device, etc. near the rotational fulcrum.

The operation will be explained.

When loading the cartridge 12 into the information recording device,
As shown in FIGS. 1 and 2, open the cover 18 and insert the cartridge into the cartridge accommodating portion provided on the inner surface of the cover 18.
Insert from position 2b in the direction of arrow 19. Then, the shutter 15 of the cartridge 12 opens in the direction shown in FIG. 3 in response to the insertion operation (the structure of the oven means is not shown as it is well known). before reaching the opening 12
a is exposed, and the cartridge 12 and bias coil 17
will not interfere.

In this state, when the cover 18 is closed in the direction of the arrow 20, the spindle hub 10 enters the cartridge 12 through the opening of the cartridge 12, the disk hub 14 and the spindle 11 engage, and the disk 13 is moved in the radial direction. is positioned horizontally by the spindle hub 10. This is because the disk hub 14 is attracted to a magnet (not shown) on the spindle motor.

In this way, the disk 13 is reliably clamped onto the spindle motor 4.

The read, write, and erase operations are the same as in the conventional system, except that in this case, the bias coil 17 fixed to the cover 18 is used.

After using the information recording device, eject means (not shown)
When the cover 18 is operated, the cover 18 opens to the position shown by the second graphic line while holding the cartridge 12. Due to this operation, the disk 13 is separated from the spindle motor 4. Even at the time of detachment, the cover 18, cartridge 12, and bias coil 17 operate integrally, so there is no interference between them.

Although the information recording device employing the structure of the present invention has been described in detail, one embodiment in which the information recording device is incorporated into the above-mentioned compact information equipment will be described below with reference to FIG.

50 is a main body case which is a housing of the information device;
1 is a display device using liquid crystal or the like; 52 is a key input means; 18
is a cover that constitutes a part of the housing of the information device. The cover 18 is shown opened for loading and ejecting the cartridge 12.

The user can insert the cartridge 12 into this opening and operate the information recording device and information equipment as described above.

Portable information devices are generally small and thin, and the majority of the device is occupied by key input means, so making the information recording device smaller is important for improving the usability of portable information devices. This is preferable both from the point of view of portability and from the point of view of portability.

In addition, in such a portable information device, how to arrange each of the above-mentioned means is important from the viewpoint of usability and portability.If the key input means 52 is placed in the front as shown in FIG. A display body 51 is placed behind it, and the information recording device is placed behind the display body 51 or on the display body 51 as shown in FIG.
, next to the key input means 52 is considered to be most suitable.

By employing the information recording device having the structure of the present invention and the structure of the cover 18 at these positions, it is possible to provide the most compact portable information device without impairing the usability of each device.

In one embodiment of the present invention, the information recording device is installed horizontally in the small information device, but the information recording device is not limited to this.
That is, it is also possible to install it perpendicularly to the main body of the information storage device.

〔Effect of the invention〕

The information device according to the present invention and the information recording device installed in the information device have the following effects because of the above structure.

In the present invention, the cover 18 of the information recording device or the information equipment equipped with the information recording device is configured to be openable and closable,
A bias coil 17 serving as a magnetic field generating means was installed near the rotational fulcrum of the cover 18. Therefore, when loading and ejecting the cartridge 12, there is no need to set the clearance H between the cartridge 12 and the tip of the spindle 11, which is seen in conventional types, making the information recording device smaller and thinner. This makes it possible to make personal computers equipped with the information recording device, especially portable information devices such as laptop computers and word processors, smaller and thinner.

Further, in one embodiment of the present invention, the bias coil 17, which is the magnetic field generating means, is installed on the cover 18 of the information recording device or portable device, so that when the cartridge 12 is loaded or ejected, the bias coil 17 is
In addition, if the cover 18 is configured as a part of the main body case 50 as a housing of the device, the bias coil 17 will not interfere with the information device when the cover 18 is closed during normal use of the information device. The thickness from the cover 18 to the bottom surface of the mount frame 1 of the information recording device can be extremely reduced compared to the conventional type, contributing to thinning of the information recording device and portable information equipment.

Furthermore, in one embodiment of the present invention, the bias coil 17
is installed near the rotational fulcrum of the cover 18, so when the cartridge 12 starts to be inserted into the cover 18, even if the guidance of the cartridge 12 is uncertain, the winding of the bias coil 17 will not be cut by the cartridge. In addition, when inserting the cartridge 12, it is not necessary to open the shutter 15 of the cartridge at the same time as the cartridge 12 is inserted.It is only necessary that the shutter 15 of the cartridge be opened by the time the cartridge tip reaches the bias coil 17 by the oven means, which simplifies the structure. , which contributes to improved reliability.

As described above, the information recording device according to the present invention and the compact information device equipped with the information recording device can be made smaller and thinner, and are particularly effective for portable information devices.

Although an information recording device that uses laser light and a portable information device equipped with the information recording device have been described as an embodiment of the present invention, the portable information device is limited to one that uses laser light. In other words, the same effect as the present invention can be obtained even if the small-sized information device is not an optical information recording device but is equipped with a well-known FDp, HDD, etc.

Further, the cover 18 of the information recording device or the small information device equipped with the information recording device is shown in one embodiment.
The rotating fulcrum is not limited to a fixed type, but may be of the type that rotates while sliding, and most of the small information devices equipped with the information recording device are portable. It also has a similar effect on miniaturization of devices that are not intended to be portable, such as desktop types, and the magnetic field generating means is not only of the bias coil type, but also has the same effect even if it has a structure using a permanent magnet. This does not depart from the spirit of the present invention.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of a small information device showing an embodiment of the present invention, FIG. 2 is a side sectional view of a magneto-optical information recording device installed in the small information device shown in FIG. 1, and FIG. 2 is an assembled plan view of FIG. 2, FIG. 4 is a side sectional view of a magneto-optical information recording device installed in a conventional small information device, and FIG. 5 is a side view of FIG. 4. 1... Mount frame 2... Main frame 2a... Rotation fulcrum portion of cover 18 4... Spindle motor 5... Head 13... Disk 17... Bias coil 18... Cover 50 ... Device main body case 51 ... Display body 52 ... Key input means

Claims (1)

[Scope of Claims] 1. Consisting of a key input means, a character or image display, a housing connecting these, and an information recording device, a part of the housing is constituted by a cover that can be opened and closed, and the cover has the above-mentioned A small information device characterized by being equipped with a means of an information recording device. 2. The small-sized information device according to claim 1, wherein the one means is a magnetic field generating means of the information recording device. 3. It consists of a key input means, a character or video display, a housing that connects these, and an information recording device, and a part of the housing is composed of a cover that can be opened and closed, and the cover and the information recording device are connected to the display. A small information device characterized by being placed at the rear of the body. 4. Consists of a key input means, a character or image display, a housing connecting these, and an information recording device, and a part of the housing is composed of a cover that can be opened and closed, and the cover and the information recording device are connected to the key A small information device, characterized in that it is arranged next to an input means or the display body.