JPH10340529A - Disk device - Google Patents

Abstract

(57) [Problem] To provide a disk device capable of surely positioning a center of a clamper and stopping a disk instantly. SOLUTION: A lower portion of a flange portion 104a of a clamper 104 for fixing a disk, and an upper cover 105.
Conical inclined surfaces 115 and 116 respectively facing the lower edge 106a of the clamper holder 106 attached to the lower surface.
When the clamper 104 is lifted by the clamper holder 106, the inclined surface 115 is received by the inclined surface 116, and the position of the clamper 104 can be positioned substantially at the center of the clamper holder 106. The 104 position can be kept constant. Also, the inclined surfaces 115, 1
As a result, the discs can be instantaneously stopped by increasing the frictional force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic chuck type clamshell type disk device.

[0002]

2. Description of the Related Art Conventionally, as a method of supporting and fixing a disk in a clamshell type disk device, a magnet catching type, a ball chucking type, and the like have been used. The magnet chucking type, which is excellent in ease of installation and slip prevention, is often used. Hereinafter, a clamper mechanism for supporting and fixing a disk of a conventional magnetic chucking clamshell type disk device will be described with reference to FIGS.

FIG. 5 is a schematic cross-sectional view and a main part enlarged view of a conventional disk drive, and FIG. 6 is a schematic cross-sectional view and a main part enlarged view of the conventional disk drive when an upper cover is opened. In both figures, a magnetic chucking clamshell type disk device 100 includes a disk drive device 102 for rotating a disk 101 to be set, and a disk drive device 102 as a clamper mechanism.
A turntable 103 made of a magnetic material or a magnet for mounting the disc 101 in conjunction with the
And a clamper 104 having a magnet or a magnetic material portion for fixing the turntable 103.
And the clamper 104 are attracted by magnetic force to sandwich the disk 101 and hold it integrally.

Further, an upper cover 105 serving as an exterior for preventing a factor hindering the rotation of the disk 101 is provided so as to be freely opened and closed about a shaft 107 as a rotation center. A clamper holder 106 that holds and pulls up the clamper 104 when the upper cover 105 is opened is attached to the upper cover 105. Furthermore, a pop-up pin 10 that pushes up the upper cover 105 in the opening direction is provided.
8, and a compression spring 1 for urging the pop-up pin 108 upward at the lower end of the pop-up pin 108
09 is provided.

[0005] The entire housing is an upper cover 10.
5 is provided, and a bottom cabinet 114 in which the disk drive device 102 is mounted. The upper upper cabinet 113 is provided with a lock lever 1 for locking the upper cover 105 so as not to open while the disk 101 is rotating.
10, the lock is released when the disc 101 is removed, the open button 111 for opening the upper cover 105 by sliding the lock lever 110, and the lock lever 110 and the open button 111 are opened after the upper cover 105 is opened. And a lock spring 112 for returning to the position.

The arrow A in FIG.
That is, the opening direction of the upper cover 105 when the pop-up pin 108 and the compression spring 109 push up the upper cover 105 is shown by pressing the open button 111 and sliding the lock lever 110 to release the lock. The arrow B indicates the sliding direction of the lock lever 110 when the open button 111 is pressed. C is the clamper 10 when the upper cover 105 is closed.
4 shows the clearance between the damper holder 4 and the clamper holder 106.

In the conventional magnetic chucking type clamshell type disk device described above, before the disk 101 is taken out, as shown in an enlarged view of FIG. 5, the lower edge portion 106a of the clamper holder 106 and the flange portion of the clamper 104 A gap D is formed between the space 104a and the space 104a. From this state, the disk 101
When taking out, as shown in FIG.
By pressing 11, the upper cover 105 can be opened. At this time, the rotation of the disk 101 is stopped by friction between the lower edge portion 106a of the clamper holder 106 that is lifted when the upper cover 105 is opened and the flange portion 104a of the clamper 104 that sandwiches the disk 101 and rotates integrally. Has become.

[0008]

Since the clamper mechanism of the conventional magnetic chucking type clamshell type disk device has the above-described structure, the position of the clamper 104 with respect to the clamper holder 106 when the upper cover 105 is opened is fixed. When the upper cover 105 is closed next, the clamper 104 may be displaced and fixed with respect to the turntable 103, and there is a problem that the clamper 104 causes an eccentricity.

In order to keep the position of the clamper 104 relative to the clamper holder 106 constant so that the center of the clamper 104 and the center of the turntable 103 always coincide, the clearance C in FIG. 1 to 2 m in consideration of the displacement of the clamper holder 106 and the displacement of the disk drive device 102 itself due to the vibration damper.
Since a clearance of about m is required, it is difficult to accurately center the clamper 104 by narrowing the clearance.

When the disk 101 is taken out, the rotation of the disk 101 is controlled by the lower edge 1 of the clamper holder 106.
Although the mechanism is stopped by the friction between the flange 06a and the flange portion 104a of the clamper 104, it is difficult to stop the disk 101 instantaneously only by this frictional force at present as the disk rotates at high speed.

In order to increase this frictional force, the force of the compression spring 109 which pushes up the pop-up pin 108 is increased, and the lower edge 10 of the clamper holder 106 is increased.
Although it is conceivable to press the flange 6a more strongly against the flange portion 104a of the clamper 104, a large compression spring is required due to an increase in required torque, and the size of the product is increased. The problem is that it is not possible to increase the frictional force while maintaining the frictional force.

According to the present invention, the centering of the clamper can be reliably performed, and a sufficient frictional force for instantaneously stopping the rotation of the disk is generated between the clamper holder and the clamper without affecting the size of the disk device. It is an object of the present invention to provide a magnetic chuck type clamshell type disk device that can be used.

[0013]

In order to solve the above problems, the present invention provides a clamper and a turntable which are attracted to each other by magnetic force and sandwich a disk therebetween.
An openable and closable upper cover that covers the surface of the disc on the clamper side, and a clamper holder attached to the upper cover and rotatably holding the clamp, wherein the clamper holder and the clamper are used when opening the upper cover. A magnetic chucking clamshell type disk device for contacting and stopping a disk that rotates integrally with the clamper with the generated frictional force, wherein the clamper and the clamper holder each have a conical inclined surface facing each other, The inclined surfaces come into contact with each other when the upper cover is opened and are fitted. According to the present invention, it is possible to obtain a disk device capable of securely determining the center position of the clamper without increasing the size of the device and allowing the disk to be stopped instantaneously due to an increase in frictional force.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a clamper and a turntable which are attracted to each other by a magnetic force and sandwich a disk therebetween, and an openable / closable upper covering a surface of the disk on the clamper side. A cover and a clamper holder attached to the upper cover and rotatably holding the clamp.When the upper cover is opened, the clamper holder and the clamper are brought into contact with each other, and the clamper is integrally formed with the clamper by the generated frictional force. A magnetic chuck type clamshell type disk device for stopping a rotating disk, wherein the clamper and the clamper holder are formed with conical inclined surfaces facing each other, and the inclined surfaces contact each other when the upper cover is opened. It is the thing that fits When the clamp is released, the inclined surface of the clamper is received by the inclined surface of the clamper holder, and the position of the clamper is held in a substantially fixed position almost at the center of the clamper holder. Is increased and the disk is stopped instantaneously.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic sectional view of a magnetic chuck type clamshell type disk device according to an embodiment of the present invention, FIG. 2 is a schematic sectional view of the disk device of FIG. 1 when an upper cover is opened, and FIG. FIG. 4 is a cross-sectional view of a main part around the clamper of FIG. 2 and FIG. In the above drawings, components having the same functions as those of the conventional magnetic chucking clamshell type disk device are denoted by the same reference numerals.

As shown in FIGS. 1 and 2, a disk device 100 of a clamshell type with a magnetic chuck is provided.
A disk drive device 1 for rotating the disk 101 is provided at a position below the disk 101 which is detachably set.
A turntable 103 made of a magnetic metal or with a magnet for mounting the disk 101 in conjunction with the disk drive device 102 is provided. A clamper 104 having a portion is provided, and the clamper 104 and the turntable 10 are provided.
3 reliably sandwich the disk 101 by the magnetic force.

An upper cover 105 as an exterior covering the upper surface side of the disk 101 is attached by a shaft 107 so as to be openable and closable. The lower surface of the upper cover 105 holds the clamper 104 when the upper cover 105 is opened. A clamper holder 106 for lifting is mounted. A pop-up pin 108 for pushing up the upper cover 105 in a direction to open the upper cover 105 and a compression spring 109 for urging the pop-up pin 108 upward are provided below the upper cover 105.

Further, the entire housing is composed of an upper cabinet 113 on the upper side and the disk drive 102
The upper cabinet 113 has a substantially lever-shaped lock lever 110 for locking the upper cover 105 so as not to be opened, and an inclined surface formed at an intermediate portion to form the lock. The open button 111 disposed orthogonal to the lever 110 and the lock lever 110 are connected to the upper cover 10.
A lock spring 112 biasing toward the fifth position is attached. When the open button 111 is depressed, the lock lever 110 is slid in the direction away from the upper cover 105 (in the direction of arrow B in the drawing) against the bias of the lock spring 112 while the inclined surface contacts the lock lever 110, and This is a mechanism for unlocking the cover 105.

As shown in FIG. 3 and FIG. 4, an inclined surface 11 is provided below the flange portion 104a of the clamper 104.
5 is formed, and the lower surface 106a of the clamper holder 106 also faces the inclined surface 115 so as to face the inclined surface 1a.
16 is provided, and the clamper 104 is held on an inclined surface 116 provided on the clamper holder 106 when the upper cover 105 shown in FIG.

Next, a description will be given of a disk ejecting operation of the disk device according to the embodiment of the present invention. First, when the open button 111 is pressed and the lock lever 110 is slid in the direction of arrow B, the upper cover 105 is opened in the direction of arrow A. When the clamper 104 is lifted by the clamper holder 106 by opening the upper cover 105, the inclined surface 115 of the clamper 104 is received and held by the inclined surface 116 of the clamper holder 106 so that the position of the clamper 104 can be adjusted.
It will be able to hold in a fixed state almost at the center of 6,
Clamper 104 when upper cover 105 is closed
When the upper cover 105 is closed, the clearance C between the clamper 10 and the clamper holder 106 is maintained.
4 can be kept constant, and the clamper 10
4 can be eliminated from the turntable 103.
In addition, when the inclined surfaces come into contact with each other, the frictional force is increased as compared with the related art, and the disk 101 can be stopped more instantaneously via the clamper 104.

[0021]

As described above, according to the present invention, the contact point between the clamper and the clamper holder when the upper cover is opened is formed as an inclined surface, so that the center position of the clamper can be properly determined without increasing the size of the disk device. And at the same time, it is possible to increase the frictional force between the clamper and the clamper holder to instantly stop the disc.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a magnetic chucking clamshell type disk device according to an embodiment of the present invention.

FIG. 2 is a schematic sectional view of the disk device of FIG. 1 when an upper cover is opened.

FIG. 3 is a sectional view of a main part around the clamper of FIG. 1;

FIG. 4 is a sectional view of a main part around the clamper when the upper cover of FIG. 2 is opened.

FIG. 5 is a schematic sectional view and a main part enlarged view of a conventional disk drive.

FIG. 6 is a schematic sectional view and an enlarged view of a main part of a conventional disk device when an upper cover is opened.

[Explanation of symbols]

REFERENCE SIGNS LIST 100 magnetic chucking clamshell type disk drive device 101 disk 102 disk drive device 103 turntable 104 clamper 104a flange portion 105 upper cover 106 clamper holder 106a lower edge portion 107 shaft 108 pop-up pin 109 compression spring 110 lock lever 111 open button 112 Lock spring 113 Upper cabinet 114 Bottom cabinet 115 Inclined surface 116 Inclined surface

Claims (1)

[Claims] 1. A clamper and a turntable which are attracted to each other by magnetic force to sandwich a disk therebetween, an openable and closable upper cover which covers a surface of the disk on the clamper side, and which is attached to the upper cover and turns the clamper. A magnet chucking type clam, comprising: a clamper holder for movably holding the clamper, when the upper cover is opened, the clamper holder and the clamper are brought into contact with each other, and the frictional force generated by the contact stops the disc that rotates together with the clamper. A shell type disk device, wherein the clamper and the clamper holder each have a substantially conical inclined surface facing each other, and the inclined surfaces come into contact with each other when the upper cover is opened, and are fitted to each other. King Clamche Type of disk device.