JPS61984A - Microfloppy disc device - Google Patents

Abstract

PURPOSE:To obtain a micro-size microfloppy disc device where the mechanism is relatively simple and the maintenance is easy and the importance is given to simplicity, by contriving a structure wherein a cartriage mechanism part drives on a guide shaft and a roll by a control motor. CONSTITUTION:When a power switch is turned on, a pluse motor 7 is operated, and a sensor 8 detects a recognition plate 801 provided on a carriage 6, and an R/W head 4 is placed at the top, and a cassette 102 where a disc medium 1 is stored is set to the device body. When a driving motor 3 is driven, a spindle 2 is rotated, and positioning of the disc medium 1 is completed by the action of a positioning pin 202. Sensors 203 and 205 control and drive the driving motor 3 while dectecting an index signal and a rotation control signal on the disc 1. R/W is possible in this state, and the carriage 6 is slided on a guide shaft 601 in one direction and is slided on a roll 602 in the other direction, and the head 4 is moved on tracks toward the center of the disc medium 1.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention rotates a disk medium) (,/W L IJ
This invention relates to a microflo disk device that reads and writes information signals by one-dimensionally mechanically scanning the dots and writes.

(Prior Art and its Problems) Conventional float and bead disk devices have been proposed in 8-inch, 5-inch, 3.5-inch, 3-inch, etc. types. However, when used as a handy type, it has disadvantages such as being large and heavy, and having a complicated mechanism that increases manufacturing costs.

(Object of the Invention) The object of the present invention is to eliminate the above-mentioned drawbacks, and to provide an ultra-small micro-floppy disk device with a relatively simple mechanism and easy maintenance, emphasizing simplicity.

According to the present invention, a rotating spindle having a disk medium positioning pin is provided on a gimbal provided with a disk medium drive mechanism section configured to be driven by a drive motor controlled by a variable speed control signal, and a tilt adjustment mechanism. l(/W head and a pressure mechanism for pressurizing the disk medium on the R/W head with an optimal pressure,
The carriage mechanism is driven by a control motor on a guide shaft and rollers arranged so that the 1(/W head advances toward the center of rotation of the disk medium), and a removable cassette containing the disk medium. A microfloppy disk device is obtained.

(Detailed configuration of the ship, light) Fig. 1 is a perspective view showing an embodiment of the microfloppy disk device according to the present invention, and 1 is a disk having a thickness of 50 μm and an outer diameter of φ50 in this embodiment. , hub 10 in the center
1, which is housed in a removable cassette 102 which has head and pad notches (not shown) in one direction. 2 is a disk medium rotation spindle with a hub 102 insertion guide pin 2 on its head.
01 and a positioning pin 202 for the disk medium l. A strip 204 (one strip in this embodiment) and a recognition strip 206 (divided into 16 equal parts in this embodiment) for detecting a disk medium rotation control signal by the sensor 205 are also provided. Further, the drive motor 31, which is controlled by the control signal, includes a friction wheel 301.302 (in this embodiment, the contact surface is rubber-lined to minimize slippage), and a pulley 303.3.
04, it is configured to be rotatable via a belt 305. 4), (/W head mounted on gimbal 401,
The cymbal is constructed so that its tilt and quality relative to the disc medium can be adjusted by pushing it upwards from 30,000 yen with a pressure coil spring (not shown) from the bottom of the cymbal, and pushing it down from the top with three screws. 5 is a disk medium pressurizing arm with a tip (a pad 5 (11) and a curved end rotatably attached to a shaft, +0)i%fl +)81(t'''''4/Ll
f4°502aty"503,.

504 with one end of a torsion coil spring 502. Further, the other end of the torsion coil spring 502 is connected to the nut 5.
The tension of the torsion coil spring is changed by rotation of a nut provided on the end face of the pressurizing arm 5, and the pressing force of the pressurizing arm 5 is changed. 6 is a carriage with the g/w 4. It is equipped with a pressure arm 5, etc., and is configured so that one side can slide on a guide shaft 601 and the other side can slide on a rotatable roller 602 so that the head can be reciprocated toward the center of rotation of the disk medium. Pulse drive motor 7 controlled by a control signal
Driven by steel bell l-701, 8
A recognition plate 801 is constructed on the carriage 6 by a read/write origin detection sensor.

Next, the operation of the above embodiment will be described.

When a power switch (not shown) is turned on to the apparatus of this embodiment, the pulse motor 7 is activated and the sensor 8 detects the recognition plate 801 provided on the carriage (/W head 4 is located at the origin). Next, cassette 1 containing the disk media
02 into the main body of the device.

At this time, the pressurizing arm 5 is configured so that it is moved away from the door at the same time as the lid of the entire device case (shown in the figure) is opened, so that the cassette can be inserted. Next, positioning of the disk medium is completed. Further sensor 203.205
controls and drives the drive motor 3 while detecting a disk index signal and a rotation control signal for making the circumferential speeds of the outer and inner circumferences of the disk constant. In this state, 1(,
/W is possible and affectionate.

(It goes without saying that it is also possible for the head to write from the inner circumference to the outer circumference.) On the other hand, when reading, the read signal The pulse motor 7 is operated, and the head can move from the origin to the information writing track and read the information. It goes without saying that the rotational speed of the spindle 2 is controlled so that the circumferential speed of each track does not change when the head moves through each track for writing and reading. By performing the series of operations described above, it is possible to read/write information to a disk medium. Furthermore, when the device main body case lid is opened during RZA, a sensor (not shown) provided on the lid is activated, making it possible to stop the R/W function.

(Effects of the Invention) As described above, according to the present invention, compared to currently proposed floppy disk devices, the mechanism is simple and ultra-small, and the low-cost microphone is lightweight and easy to maintain. This has the advantage of being able to provide a floppy disk device.

[Brief explanation of drawings]

FIG. 1 is a T perspective view showing an embodiment of the present invention. In the figure, 1 is a disk medium, 101 is a hub, 102 is a cassette, 2 is a spindle, 201 is a hub guide pin, 202 is a positioning pin, 203 is a sensor, 204 is a recognition band, 2
05 is a sensor, 206 is a recognition band, 3 is a drive motor,
301 and 302 are friction wheels, 303 and 304 are pulleys,
305 is a belt, 4 is a head, 401 is a gimbal, 5 is a pressurizing arm, 501 is a para 1.502 is a screw recoil spring, 503, 540 is, 6 is a carriage, 60
1 is a guide shaft, 602 is a roller, 7 is a pulse motor, 70
1 shows the steel belt truss. Representative patent attorney Byakko (Shin, 2゛shi)

Claims (1)

[Claims] a disk media drive mechanism configured such that a rotating spindle having a disk media positioning pin is driven by a drive motor controlled by a variable speed control signal;
The R/W head is equipped with a gimbal equipped with a tilt adjustment mechanism, and a pressure mechanism for pressurizing the disk medium on the R/W head with an optimum pressure. A microfloppy disk comprising: a carriage mechanism driven by a control motor on a guide shaft and rollers arranged to advance toward a center of rotation; and a removable cassette containing the disk medium. Device.