JPS60648A - Disc device - Google Patents

Abstract

PURPOSE:To extract a cassette while an automatic shutter is closed completely at the cassette ejection by adding a shutter pin and a plate spring with simple structure to make the jumping amount of a disc having been unstable in a conventional device constant. CONSTITUTION:The cassette 1 is moved in the direction opposite to the arrow with a spring connected to a slider 3 at the inside of the cassette, the slider 3 contacts a shutter pin 6 to stop the cassette 1. In ejecting the cassette 1 further, the shutter pin 6 is depressed by the slider 3 and a plate spring 7 is displaced by the amount of a long hole 9', but when the slider 3 passes on the shutter pin 6, the shutter pin 6 and the plate spring 7 are restored to the original position. As mentioned above, since the slider 3 contacts the shutter pin 6 at the ejection of the cassette and stops, the jumping amount of the cassette 1 is made constant at all times and the automatic shutter 2 in interlocking with the slider 3 is closed completely at the ejection of cassette.

Description

TECHNICAL FIELD The present invention relates to a disk device, and more particularly to a disk device having a mechanism for ejecting a disk cassette.

PRIOR ART Conventionally, in this type of disk device, as shown in FIG.
<Disk cassette 1 or 6 is installed in the disk device 10. In this case, when the magnetic disk cassette 1 is inserted in the direction of the arrow in the figure, the cassette guide 4 of the magnetic disk device 10 is inserted. When the slider 3 provided on the side surface of the magnetic disk cassette hits the shutter bin 5, the automatic shutter 2, which works in conjunction with the slider 3 provided on the top surface of the cassette 1, opens, and the magnetic head moves into the head window. 1a. FIG. 2 is an enlarged view of part A indicated by the dot-dashed line circle in FIG.
The cassette 1 first hits the cassette turbine 5, and then when it is further inserted, the cassette 1 advances further by the length of the sliding groove of the slider on the side of the cassette, and the auto ear starter opens, and a positioning mechanism (not shown) moves the cassette 1 to the magnetic disk. positioned within the device.

On the other hand, when the magnetic disk cassette 1 is ejected, the positioning device 1q is released and the slider 3 is restored to its original position by the restoring action of a spring (not shown) connected to the slider 3. The cassette is ejected when the cassette is closed. However, in the conventional magnetic disk drive configured in this way, the elasticity of the spring connected to the slider 3 varies, and there is no part corresponding to a suitable stopper on the side of the magnetic disk drive. There is a drawback that the amount of protrusion when the magnetic disk cassette 1 is ejected is unstable and not constant, and if the elasticity of the spring is weak, the automatic shutter 2 may protrude without being completely closed. Ta.

To provide a disk device that eliminates the drawbacks of the conventional technology using a simple mechanism, makes it possible to keep the amount of protrusion constant when a disk cassette is ejected, and to completely close an automatic shutter. It is intended to.

Implementation □Example The present invention will be described in detail below based on an example shown in the drawings. In the following drawings, the same or equivalent parts as in FIGS. 1 and 2 are denoted by the same reference numerals, and the explanation thereof will be omitted.

3 to 5 show embodiments of the present invention, and the reference numeral 6 in the figures is a shutter bin that keeps the amount of protrusion constant when the magnetic disk cassette is ejected.
It is attached to the raised central part of the leaf spring I, and is further assembled into the cassette guide 4 by means of pins 8 and 8'. Furthermore, the shutter bin 6 is attached and the leaf spring 7
A long hole 9.9' is provided in the shutter bin 6.
7 according to the length regulated by elongated hole 9.9' when pressed.
The position of the roller turbine 6 is configured to be displaced in the X direction.

Next, the operation of the magnetic disk device configured as above will be explained. Now, when the magnetic disk cassette 1 is inserted in the direction of the arrow along the cassette guide 4, the slider 3 of the magnetic disk cassette 1 hits the slider turbine 6. When the magnetic disk cassette 1 is further pushed in, the /palm turbine 6 is pushed down and the plate spring 7 is displaced 1/ by the distance of the elongated hole 9.The slider 3 passes through the soil of the shutter bin 6, and the plate spring 7 and the shutter bin 6. Both return to their original positions. By continuing to push in the magnetic disk cassette 1, the slider 3 hits the shutter bin 5. When the slider 3 is pushed in further, the auto shutter 2 opens, and the magnetic disk cassette 1 is placed in the designated position of the magnetic disk device. mounted in position.

On the other hand, when the magnetic disk cassette 1 is ejected, a spring connected to the slider 3 inside the cassette
The cassette 1 moves in the direction opposite to the arrow in the figure, and the slider 3 hits the shutter bin 6 and the cassette 1 stops. When the cassette 1 is further pulled out, the shutter bin 6 is pushed down by the slider 3, and the leaf spring 7 is displaced by the platform of the elongated hole 9'; however, when the slider 3 passes over the shutter bin 6, the shutter bin 6 and the leaf spring 7 are returns to its original position.

As is clear from the above explanation, since the slider 3 hits the shutter bin 6 and stops when the cassette is ejected, the amount of the cassette 1 that pops out is always constant.
When the cassette 1 is pulled out after it has stopped, the slider 3 is moved to the end of its sliding groove by the force of the leaf spring 7 that pushes up the shutter bin 6, and then the shutter bin 6 is pushed down. Since the cassette is then passed over, the auto-jutter 2, which is linked to the slider 3, is in a completely closed state when the cassette is taken out. Of course, the amount of protrusion of the guide set 1 can be changed by arbitrarily setting the length of the leaf spring to which the shutter bin 6 is attached.

Effects As can be seen from the above explanation, according to the present invention, the amount of protrusion of the disk, which was unstable in the past, can be kept constant at all times by adding force to the shutter bin and leaf spring, which have a simple structure. Since it is possible to take out the cassette with the auto shutter completely closed, it is possible to take out the cassette with the auto shutter completely closed, which reduces the inconvenience of handling when taking out the cassette, and furthermore reduces the amount of dust that may be generated when the auto shutter does not close completely. Defects such as adhesion and smearing are eliminated, and a disk device with more reliable and stable performance can be provided.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams of a conventional device. FIG. 1 is an explanatory diagram illustrating the structure of the main parts of a magnetic disk cassette and a magnetic disk device. FIG. 2 is a section A of FIG. 1. The enlarged sectional/original view and FIGS. 3 to 5 explain the present invention in detail. FIG. 4 is an enlarged sectional view of section B in FIG. 3, and FIG. 5 is a side view of FIG. 4. 1...Magnetic disk cassette 2...Auto shutter 3...Slider 5.6...Shutter bin 7
...Plate spring 8.8'...Pin 10, magnetic disk device. Patent applicant: Canon Electronics Co., Ltd. Figure 2 Figure 4 @ Figure 5

Claims (1)

[Claims] In a disk device having an ejecting mechanism for ejecting a disk cassette, a stopping means is provided in the ejecting path of the disk cassette, and when the disk cassette is taken out, the stopping means stops the slide cassette so that the amount of protrusion of the disk cassette is kept constant. With a disk device featuring the following features: