JPH0335744B2 - - Google Patents

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, the first
A magnetic disk cassette 1 as shown in the figure is attached to a magnetic disk device 10. In this case, if you insert the magnetic disk cassette 1 in the direction of the arrow in the figure,
The slider 3 provided on the side surface of the magnetic disk cassette abuts against the shutter pin 5 provided on the cassette guide 4 of the magnetic disk device 10, and by further insertion, an auto shutter that interlocks with the slider 3 provided on the top surface of the cassette 1 is formed. The head 2 is opened so that the magnetic head can access the magnetic disk through the head window 1a. FIG. 2 is an enlarged view of part A indicated by the dot-dashed circle in FIG. The cassette 1 advances further by the length, the autoshutter opens, and the cassette 1 is positioned within the magnetic disk device by a positioning mechanism (not shown).

On the other hand, when the magnetic disk cassette 1 is ejected, the positioning mechanism 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, so that the auto shutter 2 closes and the cassette is removed. is configured to be discharged. However, in the conventional magnetic disk device configured in this way, the elasticity of the spring connected to the slider 3 varies, and there is no part on the side of the magnetic disk device that corresponds to an appropriate stopper. , there is a drawback that the amount of protrusion when the magnetic disk cassette 1 is ejected is unstable and inconsistent.
In addition, if the elasticity of the spring is weak, there is a drawback that the auto shutter 2 may pop out without being completely closed.

Purpose The present invention has been made in view of the shortcomings of the conventional disk device.The present invention eliminates the conventional shortcomings with a simple mechanism, makes the amount of protrusion constant when the disk cassette is ejected, and completely improves the auto shutter. The object of the present invention is to provide a disk device that can be closed completely.

Embodiments The present invention will be described in detail below based on embodiments shown in the drawings. In addition, in the following drawings, Figure 1,
The same or equivalent parts as in FIG. 2 are given the same reference numerals, and their explanation will be omitted.

3 to 5 show embodiments of the present invention, and the reference numeral 6 in the figures is a shutter pin that holds the amount of protrusion constant when the magnetic disk cassette is ejected, and is attached to the raised center of the leaf spring 7. It is attached to the cassette guide 4 by means of pins 8, 8'. Further, the leaf spring 7 to which the shutter pin 6 is attached is provided with elongated holes 9, 9'.
As the shutter pin 6 is pressed down, the position of the shutter pin 6 is displaced in the X direction according to the length regulated by the elongated holes 9 and 9'.

Next, the operation of the magnetic disk device configured as above will be explained. When the magnetic disk cassette 1 is now inserted in the direction of the arrow along the cassette guide 4, the slider 3 of the magnetic disk cassette 1 abuts against the shutter pin 6. When the magnetic disk cassette 1 is further pushed in, the shutter pin 6 is pushed down, the leaf spring 7 is displaced by the amount of the elongated hole 9, the slider 3 passes over the shutter pin 6, and both the leaf spring 7 and the shutter pin 6 return to their original positions. Return. By continuing to push in the magnetic disk cassette 1, the slider 3 hits the shutter pin 5, and when the slider 3 is pushed in further, the slider 3 slides to open the auto shutter 2, and the magnetic disk cassette 1 is installed in a predetermined position of the magnetic disk device. .

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

As is clear from the above explanation, since the slider 3 hits the shutter pin 6 and stops when the cassette is ejected, the amount of the cassette 1 that pops out is always constant, and when the cassette 1 is pulled out even further after it has stopped, , the slider 3 is prevented by the force of the leaf spring 7 pushing up the shutter pin 6 and is moved to the end of its sliding groove, and then pushes down the shutter pin 6 and passes over it, so that it is interlocked with the slider 3. The auto shutter 2 is completely closed when the cassette is removed. Of course, the amount by which the cassette 1 protrudes can be changed by arbitrarily setting the position of the leaf spring to which the shutter pin 6 is attached.

Effects As is clear from the above description, according to the present invention, in a disk device having an ejection mechanism for ejecting a disk cassette, a disk cassette popping-out suppressing means is provided in the ejecting path of the disk cassette, and the suppressing means is configured as described above. a locking member that engages with a side surface of the cassette to lock the cassette at a predetermined ejection position in the cassette ejection direction when the cassette is ejected; further, the locking member is elastically supported; Since a structure is adopted in which the cassette can be moved further in the ejection direction from the predetermined ejecting position of the cassette, the amount of protrusion of the disk when ejecting can be kept constant at all times, and furthermore, the amount of protrusion of the cassette can be suppressed by the cassette. This has the excellent effect of improving the reliability of the disk device, without causing problems such as distortion of the cassette, getting caught when attaching and detaching the cassette, damage to the cassette shutter, and damage to the disk. .

[Brief explanation of drawings]

Figures 1 and 2 explain the 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 an enlarged sectional view of section A in FIG. 1, and FIGS. 3 to 5 are examples of the present invention. 3 is an explanatory diagram illustrating the structure of the magnetic disk cassette and the main parts of the magnetic disk, FIG. 4 is an enlarged sectional view of section B in FIG. 3, and FIG. FIG. 1... Magnetic disk cassette, 2... Auto shutter, 3... Slider, 5, 6... Shutter pin, 7... Leaf spring, 8, 8'... Pin, 1
0...Magnetic disk device.

Claims (1)

[Scope of Claims] 1. In a disk device having an ejection mechanism for ejecting a disk cassette, a disk cassette ejecting path is provided with a disk cassette popping-out suppressing means, and the suppressing means is arranged on a side surface of the cassette when the cassette is ejected. a locking member that engages to lock the cassette at a predetermined ejection position in the cassette ejection direction; further, the locking member is elastically supported;
A disk device characterized in that the cassette can be moved further in the ejection direction from the predetermined ejection position of the cassette.