JPS5971162A - Magnetic disc device - Google Patents

Abstract

PURPOSE:To protect normal recording and reproduction and to improve the reliability of device, by adopting the constitution that a member shutting a disc insertion slot is provided in interlocking with an automatic loading mechanism of a disc. CONSTITUTION:When a position detecting means detects that the disc 4 reaches normal clamping position, the drive of carrying motor is stopped and the carriage of the disc 4 is stopped. Then, a solenoid 5 is excited and attracts the drive shaft. Thus, a support arm 13 is tensed and turns against an energizing force of a tensile spring 14 counterclockwise as shown in an arrow (b). A cone 16 falls down and is fitted to a spindle 8 through a center hole of the disc 4. The disc 4 is clamped by being clipped with the cone 16 and the spindle 8 via a center hole from up and down sides. A shutter 17 falls down attended with the turning of the support arm 13 toward (d) and the disc insertion slot 3 is shut. Then, the display message of the shutter 17 of ''Disc is loaded'' appears at the opening of the disc insertion slot 13.

Description

TECHNICAL FIELD The present invention relates to a magnetic disk device, and more particularly to a magnetic disk device in which a magnetic head slides into contact with a magnetic disk, which is a magnetic recording medium, to record and reproduce information.

PRIOR ART A widely used magnetic disk device of this type is called a floppy disk device, in which a floppy disk (hereinafter referred to as a disk) is inserted into the device through an insertion slot, and the disk is clamped in a predetermined position. death,
Thereafter, the disk is brought into sliding contact with a magnetic head to record and reproduce information.

If an operator accidentally touches the disk in the apparatus with a finger or the like and causes vibration during this recording or reproducing operation, the recording or reproducing operation will be disturbed and normal operation will not be performed.

In conventional devices, in order to prevent this, the shape of the disk insertion opening has been designed to prevent fingers from entering, or the insertion opening has been provided with a shielding member such as an opening/closing door.

On the other hand, a disk recently inserted from the insertion slot is automatically transferred to the clamp position and then clamped, and the clamp is automatically released after the recording/playback operation is completed.

A floppy disk device (hereinafter referred to as an automatic loading FDD) equipped with an automatic loading mechanism that ejects a disk into an insertion slot has been proposed.

However, in such an automatic loading FDD.

Since the disc insertion slot is designed to operate in a closed position, there is no shielding member provided in the disc insertion slot, and the shape of the disc insertion slot is not designed to prevent fingers or the like from entering.

Therefore, in such an automatic loading FDD, it is impossible to prevent the operator from accidentally touching the disk with his or her finger from the disk insertion slot and causing vibration during recording and playback operations, and in that case, normal recording may not be possible. Or it may interfere with the playback operation.

Not yet. Therefore, it has not been possible to prevent elementary operational errors related to whether or not a disk is loaded.

Object The object of the present invention is to eliminate the above-mentioned drawbacks and provide a magnetic disk drive equipped with an automatic disk loading mechanism.

With a simple and inexpensive configuration, it is possible to prevent foreign objects such as the operator's fingers from accidentally touching the disc during recording and playback operations, to ensure normal recording and playback operations, and to notify the operator whether or not the disc is loaded. It is an object of the present invention to provide a magnetic disk device that also has means for notifying.

In order to achieve the above objects, the present invention has the following features.

A shielding member linked to the automatic loading mechanism is provided at the disc insertion slot, and at least one of nine characters, nine figures, and nine colors is displayed on the shielding member to notify the operator that a disc is loaded. . Hereinafter, the present invention will be described in detail according to embodiments shown in the drawings.

First Embodiment FIGS. 1 and 2 show the structure of essential parts of a first embodiment of the present invention. Reference numeral 1 indicates a housing that supports all the components of a magnetic disk device (hereinafter referred to as the device), and a front panel 2 is fixed to the front of the case. An insertion port 3 is formed. What is indicated by the reference numeral 4 is a disk loaded into the device, and is loaded onto the top surface of the casing.

A feed roller 5 for transporting the disk 4 is placed facing the top of the casing 1 near the disk insertion slot 3 (3).A pinch roller 6 is opposed to it, and the upper end of its outer periphery is connected to the casing. It is rotatably embedded in the housing 1 between the upper surface of the housing 1 and the road surface. The feed roller 5 and the pinch roller 6 are the disk 4
The feed roller 5 rotatably holds the disk 4 during transfer, and is rotationally driven by a feed motor (not shown).

A motor 7 for rotating the disk 4 is embedded in the housing 1 deeper than the feed roller 5, and the tip of the rotating shaft of the motor 7 fits into a center hole (not shown) of the disk 4 to rotate the disk 4. A spindle 8 holding the is fixed. The tip of the spindle 8 slightly projects from the top surface of the casing l.

On the housing 1 further back is an abbreviated head support member 9.
A magnetic head 10 is fixed to the bottom of the tip of the disk 4 for slidingly contacting the disk 4 for recording and reproducing. The magnetic head faces the disk 4 through a head support member 9 so as to be able to swing freely, and the head support member 9
is oscillated on the disk 4 by a drive means (not shown).

An arm support 11 is installed (4) on the upper surface of the innermost part of the housing 1, and a long support arm 3 whose front end reaches near the front panel is connected to the loading arm 4 by way of its fulcrum 12. It is rotatably mounted facing the surface. A tension spring 14 is stretched around the rear end of the support arm 13, and urges the support arm 13 in the clockwise direction indicated by arrow C in the figure. On the other hand, an electromagnetic solenoid 15 is provided on the front side of the support column 11, and its drive shaft is connected to the support arm 13.

When the electromagnetic solenoid 15 is excited, the drive shaft is attracted downward, and the support arm 13 is rotated counterclockwise as indicated by the arrow in the figure.

A cone 16 is attached to the middle of the support arm 13, which fits into the aforementioned spindle 8 and clamps the disk 4 together with the spindle 8 from above and below during clamping. Furthermore, a shutter 17 is attached to the front end of the support arm 13 as a member for shielding the disk insertion slot. shutter 1
7 is formed into a plate shape.

On the front side, as shown in Figure 2, there is a disc that can be seen from the disc insertion slot 3 during tracking.
The text is displayed.

Although not shown, in addition to the above, the apparatus is provided with a disk detection means for detecting the insertion of the disk 4 when it is inserted, and a position detection means for detecting the transfer position of the disk 4.

Next, the operation of the embodiment having the above configuration will be explained.

The disk 4 is inserted into the device through the disk insertion slot 3,
When the tip is pushed between the feed roller 5 and the pinch roller 6, the insertion of the disk 4 is detected by the disk detection means, the feed motor is driven, and the feed roller 5 is thereby rotated in the direction of arrow a in FIG. do. The disk 4 is thereby drawn into the device.

When the position detection means detects that the disk 4 has reached the normal clamp position, the drive of the feed motor is stopped,
Transfer of disk 4 is stopped. At the same time, the electromagnetic solenoid 5 is energized and attracts its drive shaft. As a result, the support arm 13 is pulled and rotated counterclockwise as indicated by the arrow in the figure against the biasing force of the tension spring 14. The cone 16 descends and fits into the spindle 8 through a central hole (not shown) in the disk 4. The disk 4 is held and clamped between the cone 16 and the spindle 8 from above and below through the center hole.

At this time, as the support arm 13 rotates in the b direction, the shutter 17 at the tip of the support arm 13 is lowered, thereby blocking the disk insertion slot 3. At the same time, the display characters "Disc is in" on the shutter 17 are displayed at the opening of the disc insertion slot 3.

After this, the motor 7 is driven and the spindle 8 is rotated.
This causes the disk 4 to rotate. and magnetic head l
By slidingly contacting the disc 4, information is recorded and reproduced.

When the recording and reproducing operations are completed, the drive of the motor 7 is stopped, and the rotation of the disk 4 is stopped. Thereafter, the electromagnetic solenoid 9 is deenergized and loses its pulling force on the support arm 13. The support arm 13 is rotated clockwise as indicated by arrow C in the figure by the biasing force of the tension spring 14. Correspondingly, the cone 16 is pulled up and separated from the spindle 8 and the disk 4 that was clamped thereto, and the clamp on the disk 4 is released.

(7) At this time, as the support arm 13 rotates in the C direction, the shutter 17 at its tip is lifted, and the disk insertion slot 3
will be released.

After that, the feed roller is moved by the arrow d by the drive of the feed motor.
direction, and the disc 4 is ejected from the opened disc insertion slot 3.

Second Embodiment In the above-described first embodiment, the shutter 17 displays the words "Disc is in" to notify that the disc 4 is loaded.

By making the color of the front surface of the shutter 17 symmetrical with the color of the front panel 2, it is made conspicuous when the shutter 17 blocks the disc insertion slot, thereby informing that the disc 4 is loaded. You can also do it. For example, change the color of front panel 2 to silver gray.

If you rub the shutter 17 bright yellow, when the disc insertion slot 3 is blocked by the shutter 17, the bright yellow color of the shutter 17 will be visible, indicating that the disc insertion slot 3 is blocked, that is, the disc is being loaded. It is clearly shown that

(8) However, if the front panel 2 is a bright color such as white, it is better not to make the shutter 17 a dark color such as black. The reason for this is that the disc 4 is usually housed in a black jacket, and the disc insertion slot 3 tends to be in the shadow due to its structure, so if it is painted black, the shutter 17 will become less noticeable. Furthermore, it can be displayed with symbols or shapes such as an x mark, or a single character or shape.

At least one of the colors may be selected and displayed in combination.

effect According to the present invention, as is clear from the above description.

Because the system is equipped with a member that works in conjunction with the automatic disk loading mechanism to shield the disk insertion slot, there is no possibility that an operator may accidentally touch the disk with his/her finger or the like during recording or playback, causing vibration. This prevents storage, protects normal recording and playback operations, and improves the reliability of the device.

In addition, since the shielding member is configured to display at least one of a character, a figure, and 9 colors to inform the operator that ``disc is being loaded,'' this simple and inexpensive configuration allows users to easily detect when a disk is loaded. This will be notified to the operator. Therefore, the operator can easily know whether or not a disk is loaded in the device, preventing operational errors related to disk loading, and improving the operability of the device.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view illustrating the main structure of an embodiment of the present invention, and FIG. 2 is a front view thereof. 2...Front panel 3...Disk insertion slot 4...Magnetic disk 5...Feed roller 6...Pinch roller 8...Spindle 1
3...Support arm 14...Tension spring 1
5... Electromagnetic solenoid 16... Cone 17.
...Shutter (11) Figure 1

Claims (2)

[Claims] (1) In a magnetic disk device in which a magnetic disk inserted through an insertion slot is loaded by an automatic loading means to record and reproduce information, a member is provided for shielding the insertion slot in conjunction with the automatic loading means. Features of magnetic disk device. (2) The magnetic disk device according to claim 1, wherein at least one of nine characters, one figure, and one color is displayed on the shielding member to notify that the magnetic disk is loaded. .