JPH03157884A - Flexible disk device - Google Patents

Abstract

PURPOSE:To remove dust from a recording image and to realize a slow loading by converting an inserting force into a turning force for rotating a recording medium and using the inertial force based upon the rotation of the recording medium as a damping force. CONSTITUTION:When the recording medium 4 is inserted into a holder 3, a chucking hub 8 is pressed against the recording medium 4 with the spring force of a spring 7 to move down. Consequently, a lead screw shaft 5 rotates through a spiral groove in the periphery of the lead screw shaft 5 to rotate the chucking hub 8 as well, and the recording medium 4 is also rotated simultaneously to wipe dust on the recording image of the recording medium 4 with the liner. Further, the arm of a carriage 1 is moved down gradually in an operation process. Consequently, the dust on the recording image is removed and the loading is carried out slowly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a flexible disk device that records a number 1 on a rotating recording medium using a head.

[Prior art] Fig. 4 and Fig. 5 are, for example, Japanese Patent Application Laid-Open No. 58-105459.
FIG. 2 is a side view showing a state in which a recording medium is unloaded and a side view showing a state in which a recording medium is loaded in the disclosed conventional flexible disk device. In the figure, 4 is a disk-shaped recording medium for recording signals, 2 is a head for reading and writing signals on the recording medium 4, and l is a fixed head 2; Carriage 3 for reliably seeking to the track position of the recording medium 4
6 is a boulder for positioning the recording medium 4 at one coding position; 6 is a spindle motor for rotating the recording medium 4 at a constant rotation speed in order to record and reproduce signals on the recording medium 4; 7, the recording medium 11 records the signal.
A spring 8 pulls the holder 3 downward so that it is located at a reference position where playback can be performed, and a chuck 8 is integrated with the hub of the recording medium 4 and transmits the rotational force of the spindle motor 6 to the recording medium 4. King hub.

FIG. 6 is a flowchart for explaining the operation of the futuristic disc device shown in FIGS. 4 and 5. FIG.

Next, the current generation of conventional flexible disk devices will be described. As shown in FIG. 4, in the unloaded state in which the recording medium 4 is not inserted into the holder 3, the carriage 1 is in a state in which the head 2 fixed thereto is opened. In this state, when the recording medium 4 is inserted into the holder 3, the lock (not shown) that locks the boulder 3 in the unloaded state is released, and the boulder 3 is moved to the spring position of the spring 7. is pulled downward by. Then, as shown in FIG. 5, the holder 3 stops at the rotating position where the recording medium 4 is held at the reference position. When the recording medium 4 reaches the reference position, the recording medium 4 is accurately positioned with respect to the spindle (rotating shaft) of the spindle motor 6 by energizing the spindle motor 6 and rotating the spindle motor 6. At the same time, the dust on the recording surface of the recording medium 4 is removed.

The operation of the conventional flexible disk device as described in -4- is performed according to the operation procedure ζ-2 as shown in the flowchart of FIG.

[Problems to be Solved by the Invention] Since the above-mentioned conventional flexible disk device is configured as shown below, when the power is not turned on, that is, when the spindle motor 6 is not energized, recording cannot be performed. Since the medium 4 cannot be rotated and the recording medium 4 cannot be accurately positioned with respect to the spindle of the spindle motor 6, and the fitting is insufficient, dust on the recording surface of the recording medium 4- cannot perform the removal action.

Furthermore, in the conventional flexible disk device described in "-", the recording medium 4 is rotated by the spindle motor 6 after the head 2 comes into contact with the recording medium 4. There is a risk that the dust that enters the storage medium 4 may scratch and damage the recording medium 4.

Furthermore, in the conventional flexible disk device described above, since the recording medium 4 is rotated freely by the rotation of the spindle motor 6, there is a disadvantage that power consumption is large.

-The above-mentioned conventional flexible disk device had several problems as described above.

This invention was made in order to solve the above-mentioned problems, and it is possible to rotate the recording medium and remove dust on the recording surface even when the power is not turned on, and also to An object of the present invention is to obtain a flexible disk device in which a head can come into soft contact with the surface of a recording medium by utilizing the inertial force of the disk.

[Means for Solving the Problems] A flexible disk device according to the present invention converts the insertion force into a rotational force that mechanically rotates the recording medium when inserting the recording medium into a holder, and The inertial force caused by the rotation of the recording medium is used as a damping force for bringing the head into soft contact with the surface of the recording medium.

[Function] The flexible disk device of the present invention mechanically rotates the recording medium using the insertion force when inserting the recording medium into the holder, and removes dust on the recording surface of the recording medium. perform the action of Further, the head is brought into soft contact with the surface E of the recording medium using the inertia force generated by the rotation of the recording medium, thereby preventing damage to the recording medium and extending its life.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings. 1st
2 and 2 are a side view showing a recording medium unloaded state and a side view showing a recording medium loading state of a flexible disk device according to an embodiment of the present invention. In the embodiment of the present invention, a 3.5-inch flexible disk device (FDD) is shown as an example. In the figure, 4 is a disk-shaped recording medium for recording signals, 2 is a head for reading and writing signals on the recording medium 4, and 1 is a fixed head 2; 2 is a carriage for reliably seeking to the track position of the recording medium 4; 3 is a holder for positioning the recording medium 4 at the loading position; and 5 is a carriage for rotating the recording medium 4. 6 is a spindle motor for rotating the recording medium 4 at a constant number of revolutions in order to record and reproduce signals on the recording medium 4; 7 is a reed spindle provided with a spiral groove; A spring 8 is integrated with the hub of the recording medium 4 to pull the holder 3 in the F direction so that the recording medium 4 is located at a reference position where signals can be recorded and reproduced. The chucking hub 8 is a chucking hub for transmitting the rotational force of the chucking hub 8, and a reed fluff and a shaft 5 are attached to the lower surface of the chucking hub 8. Reference numeral 9 denotes a spring for lifting the chucking hub 8 in the J-force direction when the recording medium 4 is in an unloaded state.

3 is a flowchart for explaining the operation of the flexible disk device shown in FIGS. 1 and 2. FIG.

Next, the operation of the flexible disk device, which is an embodiment of the present invention, will be described. In the unloaded state in which the recording medium 1 is not inserted into the holder 3 as shown in 1F, the carriage 1 is in a state where the head 2 identified on the carriage 1 is opened, and the chucking hub 8 is held by the spring 9. It is in a state where it is lifted to an upward position by the spring force of. In this state, when the recording medium 4 is inserted into the holder 3, a lock (not shown) that locks the holder 3 in the unloaded state is released, and the holder 3 is moved by the spring force of the spring 7. pulled downward. At the same time, the chucking hub 8 is pushed by the recording medium 4 by the spring force of the spring 7, and thus descends downward.

As the chucking hub 8 moves downward, the lead screw shaft 5 rotates due to the spiral groove provided around the lead screw shaft 5, and therefore the chucking hub 8 also rotates. . This chucking hub 8
chucks with the recording medium 4 within one rotation, rotates the recording medium 4 at the same time, and wipes off dust on the recording surface of the recording medium 4 with a liner (not shown). As it is, the recording medium 4 is rotated several times until it reaches the loading position where the recording medium 4 is held at the reference position as shown in FIG. In this process of operation, the arm (not shown) of the carriage l, which was directed to the holder 3 of the recording medium 4, gradually descends downward, so that the head 2 forms a soft ( (gently).

[Effects of the invention] Here we go! 2, according to the flexible disk device of the present invention, when inserting a recording medium into a holder, the insertion force is reduced to mechanical C. The knee is converted into a rotational force for rotating the recording medium, and the inertia force due to the rotation of the recording medium is used as a damping force for the head to come into soft contact with the surface -L of the recording medium. Because of that,
Even when the power is not turned on (OFF), the recording medium can be rotated to remove dust on its recording surface, and the head can be loaded slowly without damaging the recording medium. Because it can be done,
This eliminates the need for a head damper, etc., and provides excellent effects such as the ability to construct the device at low cost.

[Brief explanation of the drawing]

FIGS. 1 and 2 show a flexible disk device according to an embodiment of the present invention; a side view showing the unloading state of the recording medium, and a side view showing the loading state of the recording medium;
3 is a flowchart for explaining the operation of the flexible disk device shown in FIGS. 1 and 2; FIGS. 4 and 5 are side views of the conventional flexible disk device showing the unloading state of a recording medium; and a side view showing the loading state of a recording medium. FIG. 6 is a flowchart for explaining the operation of the flexible disk device of FIGS. 4 and 5. In the figure, l...carriage, 2...head, 3
... Holder, 4... Recording medium, 5... Lead screw shaft, 6... Spindle motor, 7, 9... Spring, 8... Chucking hub. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Agent Ishimasuo 11

Claims (1)

[Claims] In a flexible disk device that uses a head to record signals on a rotating recording medium, when the recording medium is operated in a loading state, the recording medium is mechanically rotated to remove dust on the recording surface of the recording medium. using a means to cause the recording medium to rotate and an inertial force caused by the rotation of the recording medium,
A flexible disk device comprising means for bringing the head into soft contact with the surface of the recording medium.