JPH04330663A - Disk device - Google Patents

Abstract

PURPOSE:To provide a disk device constituted so as to improve thinning and assembling performance for the disk device. CONSTITUTION:The magnetic disk deviec 1 is constituted in such a manner that a slider 14 is mounted so as to be capable of sliding on the under surface of a cover member fixed on a frame 2. The slider 14 is provided with inclined grooves at the both sides, to which pins projecting to both sides of a holder 5 are fitted, thereby the holder 5 is held. A latch lever 19 is supported on the under surface of cover member to restrain a restrain paul 14a of the slider 14 and energized to the restrained position by spring force of a torsion spring 21. Further, the slider 14 is pressed in the direction B by a coil spring hooked with the cover member, then the cover member, slider 14, holder 5 and latch lever 19 are assembled.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk device, and more particularly to a disk device configured to reduce the thickness of the device and improve assembly workability.

0002

2. Description of the Related Art For example, in a magnetic disk device that performs magnetic recording and playback by installing a disk storage case (hereinafter referred to as storage case) in which a flexible magnetic disk is stored, the storage case is stored in the device so that it can be installed inside the device. It had a holder into which the case was inserted, and a slider (sliding member) that slid after being released from the latch lever by the insertion operation of the storage case. The slider is slidably provided between the holder and a frame that rotatably supports the turntable, and its sliding direction is regulated by a guide pin implanted in the frame. Further, a cover member was attached to the frame to cover the upper part of the holder.

0003

[Problems to be Solved by the Invention] In the conventional disk device described above, the slider slides between the holder and the frame.
Further, since the guide pin that restricts the sliding movement of the slider protrudes from the frame, a gap is required between the holder and the frame. In addition, there is a space between the holder and the cover member because when the holder moves upward to the insertion position, the upper magnetic head escapes above the holder and is displaced between the holder and the cover member. There was also a gap.

However, disk devices are becoming thinner, and it has become important to reduce the gap within the device as much as possible. However, for example, if the thickness of the slider is made thinner, the gap between the holder and the frame becomes smaller, but this may lead to insufficient strength of the slider, or if the height of the guide pin protruding from the frame is reduced, the slider becomes difficult to guide. The problem arises that it is easy to come off the pin, making it difficult to make the device thinner.

[0005] Furthermore, when assembling a conventional disk device,
Each component such as the holder, slider, cover member, latch lever, etc. is placed separately and assembled onto the frame one by one, which takes time and effort, and it is difficult to further improve work efficiency. There wasn't.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a disk device configured to reduce the thickness of the device by providing a sliding member in an unused space and to facilitate assembly of each member.

[0007]

[Means for Solving the Problems] The present invention provides a cover member provided to cover a frame, a sliding member slidably supported by the cover member and having inclined grooves on both sides, and a disk storage case. The insertion portion has protruding pins on both sides of the insertion portion that fit into the inclined grooves of the sliding member, and the sliding movement of the sliding member moves the disk to the disk insertion position or the disk on the frame along the inclined groove. A holder that moves to the mounting position and a sliding member that is rotatably supported by the cover member and that locks the sliding member in the disc insertion position so that the protruding pin of the holder does not fall out of the inclined groove before the disc storage case is inserted. The latch lever includes a latch lever that presses the latch lever, and a biasing member that biases the latch lever to the locking position.

[0008]

[Operation] By providing the sliding member slidably between the holder and the cover member, the sliding member is interposed in the unused space between the holder and the cover member, and the holder is close to the frame side. The device can be made thinner, and the latch lever provided on the cover member locks the sliding member that holds the holder, allowing the cover member, sliding member, holder, and latch lever to be handled as one assembly. It becomes like this.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 5 show an embodiment of a disk device according to the present invention. In addition, in FIG. 1, a cover member 13, which will be described later,
is omitted.

In each figure, a magnetic disk device 1 as a recording/reproducing device is shown in a storage case 4 (
A holder 5 is provided on the frame 2 and has an insertion portion into which a device (indicated by a dashed line in FIG. 1) is inserted.

The holder 5 is arranged to move up and down in accordance with the installation and ejection operation of the storage case 4, and the top plate 5
a has an opening 5 through which the magnetic head section 8 relatively enters;
b is provided. Further, on the top plate 5a of the holder 5, an L-shaped shutter lever 6 is rotatably supported to open the shutter (not shown) of the storage case 4 in conjunction with the case insertion operation.

The shutter lever 6 is biased clockwise (shutter closing direction) by the tensile force of the coil spring 7, and an engaging pin 6a that engages with the shutter of the case 4 is inserted into the holder from the hole 5c of the holder 5 at the tip. It stands out within 5.

As shown in FIGS. 1 and 5, the magnetic head section 8 includes a carriage 9 provided movably in the disk radial direction (directions A and B), and a lower magnetic head provided on the upper surface of the tip of the carriage 9. Head 10 and base end 9a of carriage 9
It consists of an arm 11 rotatably supported by the arm 11, and an upper magnetic head 12 provided on the lower surface of the tip of the arm 11. The carriage 9 is threadedly engaged with a lead screw (not shown) driven by a stepping motor (not shown), and moves along the frame 2 from A to B according to the rotation of the lead screw.
direction, and move the magnetic heads 10 and 12 to the magnetic disk 3.
in the tracking direction.

The arm 11 is urged in the C direction (see FIG. 4) by the pressing force of a torsion spring 9c provided at the base end 9a of the carriage 9. Further, a contact portion 11a projects from the side of the arm 11, and the top plate 5a of the holder 5 is in contact with this contact portion 1a. That is, before inserting the case,
The arm 11 is pressed upward by the rise of the holder 5, thereby separating the upper magnetic head 12 from the lower magnetic head 10.

A cover member 13 is screwed into screw holes 2c formed in the edges 2a, 2b of the frame 2 so as to cover the upper part of the holder 5. As shown in FIG. 6, the cover member 13 includes a plane portion 13a formed in a J-shape when viewed from above, a cutout portion 13b formed to avoid the shutter lever 6, and a notch portion 13b that protrudes laterally from both sides. The mounting portion 13c through which the screw 15 is inserted and both sides 5 of the holder 5
A bifurcated guide portion 13e having a guide groove 13d into which a pin 5f protruding from d and 5e is fitted and guides the vertical movement of the holder 5, and a spring hook portion 1 protruding downward from the right side.
It consists of 3g and more.

A slider 14 is provided between the top plate 5a of the holder 5 and the cover member 13. Slider 14
A top plate 14a formed in a U-shape when viewed from above, and side plates 14b bent downward from both side edges of the top plate 14a.
14c. The top plate 14a has four elongated holes 14d extending in the AB direction, through which guide pins 16 implanted from below are inserted into holes 13f drilled in the flat surface 13a of the cover member 13. has been done.

The long hole 14d has a hole 14d1 at its end into which the large diameter portion 16a of the guide pin 16 is inserted, and a guide groove 14d2 into which the small diameter portion 16b of the guide pin 16 slides. Therefore, the slider 14 is supported by the guide pin 16 that protrudes downward from the cover member 13 so as to be slidable in the AB direction. Also, a spring hook 14 is provided on the side plate 14c.
h stands out.

Further, a locking claw 14e bent upward is provided on the inner side of the top plate 14a of the slider 14. Further, side plates 14b and 14c on both sides of the slider 14 have inclined grooves 14f into which protruding pins 5f protruding from both sides of the holder 5 are fitted, and an eject button 17 is provided at the front end of the top plate 14a.
The mounting portion 14g of is protruding.

Reference numeral 18 denotes a coil spring that presses the slider 14 in the direction B. One end of the coil spring 18 is hooked to a spring hook 14h of the slider 14, and the other end is hooked to a spring hook 13g of the cover member 13. The slider 14 is displaced in the B direction by the tensile force of the spring 18 before the case is inserted, and slides in the A direction when the eject button 17 is pressed during an eject operation.

Reference numeral 19 denotes a latch lever, which is rotatably supported by a pin 20 implanted in the cover member 13, and has a contact portion 19a against which the case 4 comes into contact, and a locking claw 1 of the slider 14.
It consists of a locking part 19b that locks 4E and a hole 19c into which the pin 20 is inserted.

Reference numeral 21 denotes a torsion spring, which is wound around the pin 20, and has one end hooked to the latch lever 19 and the other end hooked to a hook portion 13h projecting downward from the end of the cover member 13. , the latch lever 19 is energized in the D direction (counterclockwise). Therefore, when the slider 14 is ejected in the direction A, the latch lever 19 rotates in the direction D, and the locking portion 19b locks the locking pawl 14e. As a result, the slider 14 displaced in the A direction is held at the disk insertion position.

As shown in FIGS. 4 and 5, the holder 5 is raised to the insertion position before the case is inserted. Upper magnetic head 12
The arm 11 has a contact portion 1 that contacts the top plate 5a of the holder 5.
1a, it rises together with the holder 5. Therefore, there is an arm 11 between the holder 5 and the cover member 13.
A gap S is required for the to rotate upward. The slider 14 is provided between the holder 5 and the cover member 13 so as to fit within this gap S. That is, conventionally, this gap S is a space for the upper magnetic head 12 to move upward, and since no other members are provided, the arm 1
The space other than the space for 1 to rotate was unused space. In this embodiment, a slider 1 is placed in this unused space.
4 makes it possible to lower the insertion position of the holder 5 with respect to the frame 2. As a result, the magnetic disk device 1 can be made thinner.

Therefore, since the slider 14 does not use a thin plate material and the device can be made thin, the slider 14 does not lack strength, and the reliability of the magnetic disk device 1 and the ejecting operation is ensured. Furthermore, the guide pin 16 that guides the sliding direction of the slider 14 can secure the same protrusion dimension from the cover member 13 in the gap S between the holder 5 and the cover member 13 as in the conventional case, and the slider 14 can The sliding movement is reliably guided by the guide pin 16 without coming off the guide pin 16.

Reference numeral 22 denotes a turntable on which the magnetic disk 3 in the attached storage case 4 is placed, and is rotated at a constant speed by the rotational driving force of a motor 23. Further, the motor 23 is provided on a substrate 24 attached to the bottom side of the frame 2. The motor 23 has a drive coil (not shown) provided on a substrate 24, and a turntable 22 provided on a rotor 23a. Therefore, since the motor 23 is embedded within the frame 2 and provided on the substrate 23, the thickness of the motor 23 can be reduced. As described above, the position of the turntable 22 with respect to the frame 2 is lowered so that the mounting surface 22a approaches the upper surface 2d of the frame 2 in response to the lowering of the position of the holder 5. . That is, from the upper surface 2d of the frame 2 to the turntable 2
The protrusion height to the mounting surface 22a of 2 is small. Therefore, the mounting position of the magnetic disk 3 becomes a low position closer to the frame 2, and the magnetic disk device 1 can be made thinner.

The operation of the magnetic disk device 1 having the above configuration will now be explained.

The magnetic disk device 1 is in the state shown in FIGS. 4 and 5 before the storage case 4 is inserted. That is,
The slider 14 is locked at the position where it slid in the A direction. Further, the arm 11 having the upper magnetic head 12 is attached to the holder 5.
It has also risen to the disc insertion position.

Now, when the storage case 4 is inserted into the holder 5 held at the disk insertion position as shown by the dashed line in FIGS. 1, 4, and 5, the front end of the storage case 4 will move in the direction A. The latch lever 19 moves and comes into contact with the contact portion 19a of the latch lever 19. Further, when the storage case 4 is pressed in the A direction, the latch lever 19 rotates clockwise (to the unlocked position), and the locking portion 19b separates from the locking claw 14e of the slider 14. As a result, the latch lever 19 releases the slider 14, and the slider 14 slides in the direction B due to the tensile force of the spring 18. At this time, the slider 14 stably slides in the B direction while being supported by the four guide pins 16.

Since the protruding pins 5f protruding from both sides of the holder 5 are engaged with the inclined grooves 14f provided on the side plates 14b and 14c of the slider 14, the protruding pins 5f protrude from both sides of the holder 5 as the slider 14 slides in the direction B. The pin 5f slides on the inclined groove 14f and is pressed downward. As a result, the holder 5 is shown in FIG.
It descends to the disk loading position shown in FIG. 8, and the magnetic disk 3 in the storage case 4 is placed on the turntable 22.

Further, as the holder 5 is lowered, the arm 11 is rotated counterclockwise by the pressing force of the torsion spring 9c, thereby lowering the upper magnetic head 12. In addition, storage case 4
In the process of being inserted into the holder 5, a shutter (not shown) that closes the head contact opening is pressed against the pin 16a of the lever 16.
When the lever 16 is rotated counterclockwise, it is opened. Therefore, the magnetic disk 3 is placed on the turntable 22, and the magnetic heads 12 and 10 are brought into contact with the upper and lower recording surfaces of the magnetic disk 3.

After that, the turntable 22 is connected to the motor 23.
When driven to rotate, the magnetic disk 3 rotates together with the turntable 22, and is magnetically recorded and reproduced by the magnetic heads 10 and 12.

Next, when ejecting the magnetic disk 3 mounted as described above together with the storage case 4, the eject button 17 is first pressed in the A direction. As a result, the slider 14 slides in the A direction, and the holder 5 rises to the disk insertion position. When the slider 5 moves in the A direction, the latch lever 19 is moved to D by the pressing force of the torsion spring 21.
direction, and the locking portion 19b engages the locking portion 1 of the engagement hole 14e.
4e2 and locks. As the latch lever 19 rotates in the D direction in this manner, the storage case 4 in the holder 5 is pressed by the abutting portion 19a of the latch lever 19 and ejected in the B direction.

As shown in FIGS. 9 to 11, the slider 14
is slidably supported on the lower surface of the cover member 13, and the protruding pins 5f on both sides of the holder 5 fit into the inclined groove 14f of the slider 14.
Since the cover member 13, the slider 14, and the holder 5 can be assembled integrally. Moreover, the latch lever 1 provided on the cover member 13
9 is biased in the locking direction (direction D) by the spring force of the torsion spring 21 when the locking pawl 14e of the slider 14 is locked, so the slider 14 is locked so that it does not slide. There is. Further, since the slider 14 is urged in the direction B by the coil spring 18 stretched between the slider 14 and the cover member 13, the locking pawl 14e is pressed against the locking portion 19 of the latch lever 19, and the holder 5 The protruding pin 5f is prevented from falling out of the inclined groove 14f of the slider 14.

Therefore, the slider 14 is attached to the cover member 13.
, the latch lever 19, and the springs 18, 21 are assembled as described above, so that it is possible to form an assembly by assembling these parts in advance. Therefore,
In the process of assembling the magnetic disk device 1, the cover member 13, slider 14, latch lever 19, and springs 18, 21 are prepared as one assembly, making it faster and more efficient than before. Can be assembled.

Although the above embodiment has been explained using a magnetic disk device as an example, it is of course applicable not only to this but also to, for example, an optical disk device or a magneto-optical disk device.

[0035]

Effects of the Invention As described above, in the disk device of the present invention, the unused space between the holder and the cover member can be effectively used by providing the sliding member to be slidable between the holder and the cover member. In addition to eliminating the space for the sliding member that was conventionally required between the holder and the frame, the holder can be placed closer to the frame, and the device can be made thinner. Further, the latch lever provided on the cover member locks the sliding member that holds the holder, so that the cover member, the sliding member, the holder, and the latch lever can be assembled in advance as one assembly. It has features such as being able to perform assembly work in the assembly process efficiently and shortening the assembly time compared to conventional methods.

[Brief explanation of drawings]

FIG. 1 is a plan view of an embodiment of a disk device according to the present invention.

FIG. 2 is a perspective view showing the assembled state of the holder, slider, and cover member.

FIG. 3 is an exploded perspective view showing a holder and a frame.

FIG. 4 is a longitudinal cross-sectional view of the magnetic disk device viewed from the front when a disk is inserted.

FIG. 5 is a longitudinal sectional view of the magnetic disk device viewed from the side when a disk is inserted.

FIG. 6 is an exploded perspective view showing a cover member and a slider.

FIG. 7 is a longitudinal cross-sectional view of the disk device viewed from the front when a disk is installed.

FIG. 8 is a longitudinal cross-sectional view of the disk device viewed from the side when a disk is attached.

FIG. 9 is a plan view of an assembled state of the cover member, slider, holder, and latch lever.

FIG. 10 is a right side view of the assembly shown in FIG. 9;

FIG. 11 is a left side view of the assembly shown in FIG. 9;

[Explanation of symbols]

1 Magnetic disk device 2 Frame 4 Storage case 5 Holder 8 Magnetic head section 13 Cover part 14 Slider 16 Guide pin 17 Eject button 19 Latch lever 21 Torsion spring

Claims (1)

[Claims] 1. A cover member provided to cover a frame, a sliding member slidably supported by the cover member and having inclined grooves on both sides, and both sides of an insertion portion into which a disc storage case is inserted. a holder having a protruding pin that fits into an inclined groove of the sliding member, and moves along the inclined groove to a disk insertion position or a disk mounting position on the frame by the sliding movement of the sliding member; a latch lever that is rotatably supported by the cover member and that locks the sliding member at the disc insertion position to prevent the protruding pin of the holder from falling out of the inclined groove before the disc storage case is inserted; and the latch lever. A disc device comprising: a biasing member that biases the disc to a locking position.