JPH01155551A - Magnetic disk recording and reproducing device - Google Patents

Abstract

PURPOSE:To improve the impact resistance by connecting a cartridge ejection button with a lever tongue and providing a connecting member having an L- shaped tongue to be engaged with a protrusion of a stopper part movable parallel to an upper surface or a lower surface of a holder part. CONSTITUTION:When a stopper 15 is pushed, a lever 14 is to be turned by a spring 18 in its force, but it is not turned due to the engagement between the L-shaped protrusion 17 of the holder 2A and the lever tongue 14a, so that the cartridge ejection button 13 is stopped in its initial position. Furthermore, when the holder 2A is pushed, the stopper 15 is moved backward and then descended vertically, so that the holder 2A is lowered around its fulcrum accordingly, and hence a magnetic cartridge 1 is disposed into a regular position. Then, the lever 14 is turned, and consequently the button 13 is spring out of a front panel by the spring 18 in its force via a tongue 14a and the connecting member 19, and then the L-shaped tongue 19a of the connecting member 19 is engaged with the protrusion part of the stopper 15. By this method, a high impact resistance loading mechanism can be constituted in simple constitution.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a magnetic disk recording/reproducing device used in various office automation equipment.

Conventional technology The loading mechanism of conventional magnetic disk recording and reproducing devices is a parallel loading mechanism in which the magnetic disk is vertically loaded and unloaded while being held horizontally, which requires a large number of parts, heavy operating force, and a heavy product weight. It had become.

Furthermore, when a shock is applied to the product, there is a problem that the magnetic disk changes from the installed state to the ejected state.

Problems to be Solved by the Invention Part 6 Regarding conventional general magnetic disk recording and reproducing devices
This will be explained with the help of a diagram.

FIG. 5 is a perspective view showing the inside of a conventional magnetic disk recording/reproducing device.
Magnetic disk cartridge 2 that rotatably supports this
The chassis is housed in a 3° cam plate 4 and a stopper 6.
It is placed at the recording/reproducing position of the main body of the apparatus by a loading device equipped with the following.

A rotary drive device 6 for rotating the magnetic disk 1 is driven by an electric motor 8 via a belt 7 .

The magnetic head 9 arranged so as to be in contact with the surface of the magnetic disk 1 described above is driven in the radial direction of the magnetic disk 1 by a magnetic head feeding device 10 .

A control circuit section 11 that controls the movements of the magnetic disk rotation drive device 6 and the magnetic head feeding device 10 described above, as well as the recording and reproducing of the magnetic disk 1 by the magnetic head 9, is mounted on the bottom of the main body of the device.

The operation of the magnetic disk recording/reproducing apparatus configured as above will be explained.

First, the magnetic disk cartridge 2 is placed at the recording/reproducing position of the main body of the apparatus by a loading device, and the magnetic disk 1 is rotated by the magnetic disk rotation drive device 6. At the same time, the magnetic head feeding device 10 operates to move the magnetic head 9 in the radial direction, and it comes to rest at a predetermined relative position for recording on the magnetic disk 1 or extracting recording from the magnetic disk 1.

Next, an electric signal from the control circuit section 11 causes the magnetic head 9 to
Information is recorded on or reproduced from the magnetic disk 1 through the magnetic disk 1.

FIGS. 6 and 7 show a loading mechanism of a conventional magnetic disk recording/reproducing apparatus.

A cam plate 4 is arranged between the holder 2m in which the magnetic disk cartridge 2 is stored and the chassis 3. By sliding this cam plate 4 back and forth, the tapered portion of the cam plate 4 and the holder 2 are disposed. The holder 2 is moved by the action of the roller 26.
The system is configured to move up and down.

However, in the loading mechanism configured as described above, when an upward external force is applied to the two holders while the magnetic disk is attached, the cam plate 4 is pushed backward due to its taper, and the magnetic disk ends up being ejected. there were.

The present invention has been made in view of the drawbacks of the conventional example, and its purpose is to improve confidence in the shock value by changing the loading structure.

Means for Solving the Problems In order to achieve the above object, the magnetic disk recording/reproducing apparatus of the present invention rotates the loading mechanism using the - end as a fulcrum, and has an L-shaped cross section on the lower surface. , a holder portion that holds the magnetic disk cartridge; a stopper portion that is movable in parallel with the upper or lower surface of the holder portion and has a protrusion on a side surface; and a stopper portion that rotates about a fulcrum and is coupled to a cartridge ejection button. with the first tongue piece.

a lever having a second tongue that contacts the lower surface of the holder at the other end of the holder; and an L-shaped lever that connects the cartridge ejection button and the lever tongue and engages with a protrusion of the stopper portion. A connecting member having a tongue piece.

Effect: Due to this structure, the L-shaped tongue piece of the connecting member and the protrusion of the stopper portion are engaged with each other, thereby increasing shock resistance.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Only the features of the present invention will be described below with reference to the drawings.

1 and 2 show one embodiment of the present invention, and FIGS. 3 and 4 show other embodiments.

When the magnetic disk cartridge 2 is inserted into the holder 2 at A in FIG. 1, the stopper 16 is pushed. At this time, the lever 14 tries to turn υ due to the force of the d spring 18, but the L-shaped protrusion 17 of the holder 2m and the lever tongue piece 14&
In this state, the button 13 is stopped at the initial position without making one rotation due to the engagement with the button 13. Furthermore, when two holders are inserted, the stopper 1s:d moves backward along the chassis 3.

Due to the force of the spring 16, it descends vertically as shown in FIG.

As a result, the holder 2 is tilted downward about the fulcrum, and the magnetic disk cartridge 1 is placed in the normal position. The lever 14 rotates when the holder 2 is lowered, and the tongue piece 14
b and the force of the spring 18 via the connecting member 19 causes the ejection button +3 to pop out to the front, and the L-shaped tongue piece 1 of the connecting member 19
9& engages with the protrusion of the stopper 15 as shown in FIG.

In this state, if an external force is applied to move the holder 2m upward, the protrusion 15 & of the stopper 16 and the link disposed above it, the L-shaped tongue piece 19 & of the frame member 19
is engaged, so when the lever 14 rotates and the coupling member 19 is disengaged, when the external force is removed, the spring 160
The magnetic disk mounting state shown in FIG. 4 is restored again by the power IC.

Next, when the button 13 is pressed, the lever 14 (d rotational movement) pushes up the striking force holder 2m, the stopper 16 is also pulled up at the same time, and the force of the spring 20 returns it along the chassis 3 to its original position as shown in FIG. The flexible magnetic disk cartridge 2 is ejected by the force when the stopper 15 returns.

Figure 3 Figure 4 shows another embodiment of the present invention, in which the upward external force of the two holders is regulated by the L-shaped protrusion 21 of the two holders and the chassis when the magnetic disk is mounted. This is done by engaging the L-shaped tongue of the connecting member 19 with the lower surface of the connecting member 3.

Effects of the Invention As described above, the magnetic disk recording and reproducing apparatus of the present invention allows the loading mechanism to be configured with a simple configuration.

It has high impact resistance and is stable in quality.

[Brief explanation of the drawing]

Figures 1 and 2 are configuration diagrams of an embodiment of the present invention, Figure 3,
FIG. 4 is a configuration diagram of another embodiment of the present invention, and FIG. 6 is a perspective view of a conventional magnetic disk recording/reproducing apparatus. FIG. 6 and FIG. 7 are configuration diagrams showing a conventional example. 1... Magnetic disk, 2... Flexible magnetic disk cartridge, 3... Chassis, 6... Magnetic disk rotation drive device, 9...
...magnetic head. 1o...Magnetic head feeding mechanism, 11...
・Control circuit section, 2 people...Holder%13...
...Magnetic disk ejection button, 14...Lever, 15...Stopper, 15! L...
...Toucho, 19...Connecting member, 19 &...
...L-shaped protrusion. Name of agent: Patent attorney Toshio Nakao and one other person
1 + to Figure 2 Figure 3 Figure 5

Claims (1)

[Claims] A loading mechanism for setting a magnetic disk cartridge, which is constructed by rotatably supporting and storing a magnetic disk in a molded resin case, into a recording/playback position, and a loading mechanism that sets the magnetic disk cartridge in a recording/playback position. a magnetic disk rotation drive mechanism for rotating the magnetic disk; a magnetic head disposed so as to be in contact with a recording portion surface of the magnetic disk; and a magnetic head for moving the magnetic head in a radial direction of the magnetic disk. The loading mechanism includes a feeding mechanism, and a control circuit unit that controls recording and reproduction of information on a magnetic disk by the magnetic head, and controls a magnetic disk rotation drive mechanism and a magnetic head feeding mechanism, and the loading mechanism rotates with one end as a fulcrum. a holder part that is movable and has an L-shaped protrusion on the lower surface and holds the magnetic disk cartridge; a stopper part that is movable parallel to the upper or lower surface of the holder part and has a protrusion on the side surface; a lever that rotates around the center and has a first tongue piece that is coupled to the cartridge ejection button; a second tongue piece that contacts the lower surface of the holder at the other end of the holder; and the cartridge ejection button. A magnetic disk recording/reproducing device comprising a connecting member having an L-shaped tongue that connects the lever tongue and engages with a protrusion of the stopper portion.