JPH01312766A - Disk driver - Google Patents

Abstract

PURPOSE:To decelerate the rejecting speed of a cartridge and to prevent the cartridge from being jumped out by providing a jumping-out preventing member in contact with the cartridge in the case of rejecting the cartridge. CONSTITUTION:As soon as a magnetic disk cartridge 17 accommodated in a cartridge holder 8 is lifted up to the eject position in the ejecting, a lock part is removed from a cam of a slide plate and the lock plate is made movable. Then the tip of the cartridge 17 is pressed by a press contact part 16 of the eject lever 13 to eject the cartridge from the cartridge holder 18. In case of ejecting, since a contact part 30 of a guide member 21 is pressed into contact onto the upper face of the cartridge 17 by the energy of a torsional coil spring 25, a friction resistive force is exerted to the cartridge 17 to weaken the ejecting speed thereby preventing the cartridge 17 from being jumped out of the cartridge holder 8.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disk drive device, and particularly to a disk drive device in which a cartridge containing a recording medium is ejected by a spring force.

[Conventional technology]

This type of disk drive records/reproduces information by rotationally driving an information recording medium formed in the shape of a disk, such as a magnetic disk or an optical disk. Small-sized disk drives are used for personal computers, etc. Used in word processors, etc.

This disk drive device includes a cartridge holder into which a cartridge that rotatably stores a magnetic disk is inserted, an eject lever that pushes the cartridge inserted into the cartridge holder in the ejection direction, and an eject lever that pushes the cartridge in the ejection direction. Equipped with a coil spring that forces the
When this cartridge is ejected, the eject lever, which has been pushed and locked by the cartridge, is released, and the eject lever uses a coil spring to push the cartridge in the ejecting direction, causing one end of the cartridge to protrude out of the disk drive device. .

[Problem to be solved by the invention]

Incidentally, depending on the needs of the user, the above-mentioned disk drive devices include types in which a dust-proof cover is provided in the cartridge insertion slot when the cartridge is not inserted, or types without a cover.

However, in the prior art, the cartridge inserted into the cartridge holder is pushed out by the eject lever that is biased in the ejection direction by the spring force of the coil spring. The force caused the cartridge to tremble and pop out of the holder, causing damage to the cartridge.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a disk drive device r that can prevent a cartridge from flying out due to an ejection operation.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a cartridge holder into which a cartridge containing an information recording medium is inserted, an eject lever that pushes out the cartridge inserted into the cartridge holder in an ejection direction, and an eject lever that pushes out the cartridge inserted into the cartridge holder. The disk drive device includes a spring member that biases the cartridge in the ejection direction, and a pop-out prevention member that comes into contact with the cartridge when the cartridge is ejected is provided.

[Effect]

With the above means, the pop-out prevention member comes into contact with the cartridge, so that frictional resistance is generated in the cartridge, and the ejection speed of the cartridge due to the spring force is reduced. This eliminates the risk of the cartridge flying out of the device and prevents damage to the cartridge.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a front view of a disk drive device according to the present invention, and FIG.
The figure is a plan view of the disk drive, FIG. 3 is a plan view of the disk drive with the cover removed, and FIG.
), (b) is a plan view and bottom view of the cartridge holder portion, and FIG. 5 (a).

(b) and (C) are plan, front, and bottom views of the guide member, Figure 6 is a perspective view of the main part showing the guide member attached to the cartridge holder, and Figure 7 is the spring attached to the guide member. FIG. 8 is a sectional view of the main part showing the operation of the guide member.

In these figures, reference numeral 1 denotes a floppy disk drive device, and this disk drive device l has a chassis 2. As shown in FIG. At a predetermined position on this chassis 1, there is a disk rotation shaft 3, a carriage 4 on which a magnetic head is mounted, a guide shaft 5 for guiding the movement of this carriage 4, and a screw shaft for engaging with the carriage 4 and moving the carriage 4. 6. A stepping motor 7 for rotating the screw shaft 6 by a predetermined amount is arranged.

A pair of side plates 1a are integrally provided on both sides of the chassis 1, and a cartridge holder 8 made of synthetic resin is disposed inside the side plates 1a so as to be vertically movable. This cartridge holder 8 is urged downward (in a direction perpendicular to the plane of the paper in FIG. 3) by pins 9 protruding from both sides thereof and a coil spring 10 stretched between the chassis 1. Furthermore, engaging pins 11 and 11 are protruded from both sides of the cartridge holder 8, and a temporary slide 12 provided with a vertically movable cam that engages with the retaining pin 11 is disposed. Further, the cartridge holder 8 is provided with an eject lever 13 that stores a force for ejecting the disk cartridge, and the cartridge holder 8 faces above the disk rotating shaft 3. The overall structure is as shown above.

The eject lever 13 is rotatably supported by a support shaft 14a on the upper surface side of the cartridge holder 8, and is always directed toward the cartridge insertion port, that is, in FIG. is elastically biased in the counterclockwise direction. This eject lever 13 has a contact portion 16 at its tip, and when the magnetic disk cartridge 17 inserted into the cartridge holder 8 contacts this contact portion 16 and rotates the eject lever 13, the coil spring 15 is activated. Power is stored. Further, a lock plate 18 is rotatably supported on the lower surface side of the cartridge holder 8 by a support shaft 14b, and this lock plate 18 is supported by a torsion coil spring 19 wound around the support shaft 14b as shown in FIG. 4(b). It is biased clockwise. This lock part 18 is provided with a retaining part 18a that engages with the eject lever 13, an abutting part 18b that engages with the slide plate I2, and a lock part 18c.

In addition, the cartridge insertion port 20 of the cartridge holder 8
A guide member 21, which is a member to prevent jumping out, is provided. This guide member 21 is formed by molding synthetic resin, as shown in FIG. 5(a).

As shown in (b) and (c), it has a long plate shape with rotating shafts 22.22 protruding from both ends thereof, and this rotating shaft 22.22 is connected to a notch-shaped bearing portion 23a1 provided in the cartridge holder 8.
and is fitted into and supported by the hole-shaped bearing portion 23b.

A coil spring winding shaft portion 24 having a diameter larger than that of the rotation shaft 22 and having a partially occluded shape is provided at the base of the rotation shaft 22, and a torsion coil spring 25 is wound around this shaft portion 24. has been done. One end 25a of this torsion coil spring 25 is bent, and this one end 25a is engaged with the upper surface of the guide member 21, and the other end 25b of the torsion coil spring 25 is engaged with a retaining wall 27 provided on the cartridge holder 8. There is.

This (return recoil spring 25 causes the guide member 21 to
In the figure, the guide member 21 is biased in a counterclockwise direction around the rotating shaft 22, and the guide member 21 is rotated when the protruding piece 21a protruding from the upper surface of the guide member 21 comes into contact with the upper surface 8b of the cartridge holder 8. ing.

Further, a 1ft slope 29 is formed on the front side of the lower surface of the guide member 21, that is, on the cartridge insertion opening 20 side, so that the magnetic cartridge 17 can be inserted smoothly. Further, contact portions 30 and 30 are formed on the rear side of both ends of the lower surface of the guide member 21, respectively. The contact portion 3o extends rearward of the guide member 21 and is formed to protrude slightly downward. This contact part 3o
is located on the insertion path of the magnetic cartridge 17, and when the magnetic cartridge 17 is inserted into the cartridge holder 8, the contact portion 30 is pressed against the upper surface 2B of the magnetic cartridge 17. Note that 31 is a reinforcing rib, and 32 is an eject knob.

The operation of mounting the magnetic disk cartridge 17 in the embodiment thus constructed will now be described.

First, when the magnetic disk cartridge 17 is in a standby state where it is not inserted into the cartridge holder 8, the slide plate 12 is pushed into the lock portion 18c of the lock plate 18.
(the position of the eject knob 32 shown by the dashed line in FIGS. 2 and 3), the cartridge holder 8 is moved to the upper position, that is, the eject position via the pin 11 by the vertical movement cam of the two-slide temporary 12. is held in

Further, in such a standby state, the eject lever 13 is pulled by the spring force of the coil spring 15 and the torsion coil spring 19 and is positioned near the cartridge insertion port 20.

When the magnetic disk cartridge 17 is inserted into the cartridge holder 8 in this state, the upper end of the magnetic disk cartridge 17 comes into contact with the contact portion 30 of the guide member 21, and when the magnetic disk cartridge 17 is further inserted, the guide member 21 is rotated clockwise in FIG. 8 against the torsion coil spring 25 to the position shown by the dotted line m, and the contact portion 30 is pressed against the upper surface 28 of the magnetic disk cartridge 17 by the accumulated force of the torsion coil spring 25. Ru.

When the magnetic disk cartridge 17 is further inserted, the tip of the magnetic disk cartridge 17 comes into contact with the contact portion 16 of the eject lever 13. When the magnetic disk cartridge 17 is further inserted, the eject lever 13 moves clockwise in FIG. It rotates and gives stored force to the coil spring 15.

Further, due to the insertion operation of the magnetic disk cartridge 17, the lock plate 18 holding the slide plate 12 is rotated together with the eject lever 13, and the lock portion 18c is disengaged, the slide plate 12 is unlocked, and the slide plate 12 is rotated. The plate 12 is slid forward in FIG. Then, the cam portion (not shown) of the slide plate 12 is engaged with the contact portion 18b of the lock plate 18, and only the lock vi18 is locked at the pushed-in position, while the eject lever 1
The contact portion 16 of No. 3 is pressed against the tip of the magnetic disc cartridge 17 by a coil spring 15.

Incidentally, as the slide plate 12 moves, the bin 11 engaged with the vertically movable cam is lowered, and the cartridge holder 8 descends to the lower position, that is, the loading position, with the magnetic disk cartridge 17 housed therein, and the magnetic The disk cartridge 17 is used for recording and reproduction operations. At this time, as the cartridge holder 8 descends, the cartridge holder 8, eject lever 13, lock plate 18, guide member 21, and magnetic disk cartridge 17 descend together.

Next, the ejecting operation of the magnetic disk cartridge 17 will be explained. First, when the eject knob 32 at the position shown by the solid line in FIGS. 2 and 3 is pushed in from the outside and the slide plate 12 is pushed in, the cartridge holder 8 is moved from the load position to the eject position via the vertical cam. be pushed up. When the slide plate 12 is pushed in further, the slide plate 12 is locked at the pushed-in position by the lock portion 18c, so the eject knob 3
Even if the pressing force on the slide plate 12 is removed, the slide plate 12 is held at the eject position.

In this ejecting operation, the cartridge holder 8
At the same time that the magnetic disk cartridge 17 housed in the magnetic disk cartridge 17 is pushed up to the eject position, the abutment mtac of the lock portion 18 is disengaged from the cam portion of the slide plate 12, and the lock plate 18 becomes rotatable.

As a result, the spring force of the torsion coil spring 19 is applied to the eject lever 13, and the spring force of the coil spring 15 of the eject lever 13 is also applied to the eject lever 13.
is rotated counterclockwise in FIG. Then, the tip of the magnetic disk cartridge 17 is pushed by the contact portion 16 of the eject lever 13, and the magnetic disk cartridge 17 is ejected from the cartridge holder 8. During this ejection operation, since the contact portion 30 of the guide member 21 is pressed against the upper surface of the magnetic disk cartridge 17 by the stored force of the tear coil spring 25, a frictional resistance force acts on the magnetic disk cartridge 17 and the magnetic disk cartridge 17 is ejected. The speed is weakened, and the magnetic disk cartridge 17 does not fly out from the cartridge holder 8.

In the embodiment configured in this manner, when the magnetic disk cartridge 17 is pushed into the cartridge holder 8, the guide member 21 having the contact portion 30 that is pressed against the upper surface 28 of the magnetic disk cartridge 17 is inserted into the cartridge holder. 8, a frictional resistance force acts on the magnetic disk cartridge 17, and the speed at which the magnetic disk cartridge 17 is ejected by the ejecting force of the eject lever 13 is reduced. As a result, even if the magnetic disk cartridge insertion slot 20 is of a type without a lid, there is no possibility that the magnetic disk cartridge 17 will jump out of the disk drive device 1, and damage to the magnetic disk cartridge 17 can be prevented. Further, since the inclined surface 29 is formed on the lower surface of the guide member 21 on the cartridge insertion port 20 side, smooth insertion of the magnetic disk cartridge 17 can be realized.

〔Effect of the invention〕

As described above, according to the present invention, since the pop-out prevention member that contacts the cartridge when the cartridge is ejected is provided, a frictional resistance force acts on the cartridge, and it is possible to prevent the cartridge from popping out due to the ejection operation.

[Brief explanation of the drawing]

The drawings are all for explaining one embodiment of the present invention, and FIG. 1 is a front view of a disk drive device according to the present invention, FIG. 2 is a plan view of the same disk drive device, and FIG. 3 is a view of the same disk drive device. Plan view showing the state with the cover removed, FIG. 4(a),
(b) is a plan view and a bottom view of the cartridge holder portion, and FIG. 5 (a). (b) and (c) are plan, front, and bottom views of the guide member, Figure 6 is a perspective view of the main part showing the guide member attached to the cartridge holder, and Figure 7 is the spring attached to the guide member. FIG. 8 is a sectional view of the main part showing the operation of the guide member. 1... Floppy disk drive, 8
...Cartridge holder, 13...
...Eject lever, 15...
Coil spring, 17... Magnetic disk cartridge, 21... Guide member, 22.
......Rotation shaft, 25...Torsion coil spring, 30...Contact part. Figure 1 Figure 2 Figure 3 Figure 4 (C) Figure 4 (b) Figure 5

Claims (1)

[Claims] The cartridge holder includes a cartridge holder into which a cartridge containing an information recording medium is inserted, an eject lever that pushes out the cartridge inserted into the cartridge holder in the ejection direction, and a spring member that biases the eject lever in the ejection direction. What is claimed is: 1. A disk drive device comprising: a pop-out prevention member that comes into contact with the cartridge when the cartridge is ejected.