JPH11167766A - Disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk device capable of surely stopping the rotation of a disk before the disk is ejected from a device by a simple structure. SOLUTION: This disk device is characterized in that the device is provided with upper and lower outer cover 8 and 9 for housing the entire device, a tray 5 for placing, housing or ejecting a disk 1, and a buffer member 4 provided in an area passed by the peripheral part of the disk 1 when the tray 5 performs an ejecting operation. Thus, the rotation of the disk 1 is surely stopped before it is ejected from the device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a high-density disc,
The present invention relates to a disk device that performs an operation of storing and discharging a disk such as a compact disk.

[0002]

2. Description of the Related Art A conventional disk drive will be described below. FIG. 5 is a plan view of a conventional disk drive. The operation of ejecting the disc out of the apparatus will be described with reference to FIG.

[0003] Reference numeral 3 denotes a spindle motor having a rotation speed of 200 to 1;
It outputs 0000 rpm and is mounted on an optical pickup. The optical pickup is supported by a tray 5 that supports the removal of the disk 1. The user presses an eject button 6 on the tray 5 and a power source such as a motor is turned off.
An eject mechanism for ejecting the disk 1 to the outside of the apparatus when N is performed, or an eject mechanism for ejecting the disc 1 by a mechanical movement when the user presses the eject button 6 is arranged. Further, when a power source such as a motor is used, a forced eject mechanism for forcibly ejecting the disk 1 to the outside of the apparatus even in the event of a failure of the electric system is also provided on the front surface of the disk 1 in the ejection direction.

When the tray 5 and the optical pickup attached to the tray 5 are housed in the apparatus, the periphery is covered by an upper exterior cover 9 and the disk 1
It does not touch the user's hand while rotating. When ejecting the tray 5 in order to remove the disk 1, the eject button 6 is pushed to turn on the power source of the eject mechanism or the eject mechanism is operated by mechanical movement to eject the tray 5. . At this time, when discharging using a power source such as a motor, 20
After the spindle motor 3 rotating at 0 to 10000 rpm stops and the rotation of the disk 1 completely stops,
It is possible to control the ejection of the tray 5 and the optical pickup.

However, if an eject mechanism is provided in which the user presses the eject button 6 to perform an ejecting operation by mechanical movement, the tray 5 is ejected after the rotation of the spindle motor 3 is completely stopped as described above. The disc 1 cannot be controlled even if the tray 5 and the optical pickup are ejected.
May keep rotating. However, tray 5
The output to the spindle motor 3 is stopped at the same time when it is detected that the discharge starts outside the apparatus.

When the tray 5 and the optical pickup are ejected out of the apparatus, the user can easily touch the rotating disk 1 because the mounting operation of the disk 1 is facilitated. It is possible. Further, even when an ejection mechanism for performing an ejection operation using a power source such as a motor is provided, a forced ejection mechanism for forcibly ejecting the disk 1 to the outside of the apparatus even when a failure occurs in an electric system including the power source is also provided. Since the disc 1 is provided on the front surface in the ejection direction, the user can touch the rotating disc 1 in the same manner as the ejection mechanism that performs the ejection operation by mechanical movement.

[0007]

However, the configuration of the conventional disk drive as described above has an ejecting mechanism for ejecting a disk to the outside of the drive by pressing an eject button to turn on a power source such as a motor. Even if it is arranged, even when an eject mechanism is provided in which the user presses the eject button to perform the ejecting operation by mechanical movement, the tray and the tray are rotated without completely stopping the rotation of the spindle motor, that is, the rotation of the disk. It is possible that the optical pickup is ejected. As a result, the user can touch the rotating disk, which poses a safety problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and has as its object to provide a disk device capable of reliably stopping its rotation by a simple structure until the disk is ejected out of the device. Aim.

[0009]

The disk drive according to the present invention has a housing for housing the entire apparatus, and a disk mounting / conveying means for mounting a disk and storing it in the housing or discharging the disk from the housing. Further, a buffer member is provided in a housing in a region where a peripheral portion of the disk passes when the disk mounting / conveying means performs a discharging operation. In particular, the buffer member has a contact length with the peripheral portion of the disk set in a range of 2 mm to 30 mm, and the buffer member has a multilayer structure of a material having a large friction coefficient and a material having elasticity.

With the above arrangement, it is possible to provide a disk device capable of reliably stopping its rotation before the disk is ejected out of the device.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to a first aspect of the present invention is directed to a housing for accommodating the entire apparatus, and a disk mounting / conveying means for mounting a disk and storing it in the housing or discharging the disk from the housing. And a buffer member is provided in a housing in an area through which a peripheral portion of the disk passes when the disk mounting / conveying means performs a discharging operation.
With the above configuration, it is possible to provide a disk device capable of surely stopping its rotation before the disk is ejected out of the device.

[0012] In particular, the invention according to claims 2 to 3 sets the size of the buffer member so that the length of contact with the peripheral portion of the disk is in the range of 2 mm to 30 mm, and furthermore, the material of the buffer member is Has a multilayer structure of a material having a large coefficient of friction and a material having elasticity. As described above, a reliable stopping action can be exhibited with a simple configuration.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. (Embodiment) FIG. 1 is a plan view of a disk drive according to an embodiment of the present invention. Reference numeral 1 denotes a disk, which is a high-density disk or a compact disk. Reference numeral 2 denotes an optical pickup for performing recording and reproduction on the disk 1. Reference numeral 3 denotes a spindle motor which has a mechanism for clamping the disk 1 and is mounted on an optical pickup. Reference numeral 4 denotes a brake mechanism composed of a buffer member having a large friction coefficient. Hereinafter, FIG.
3 is an X-ray cross-sectional view, FIG. 3 is an enlarged view of a main part at the time of a discharging operation in FIG. 1, and FIG. 4 is an enlarged view of a main part when FIG. 3 is further discharged.

An optical pickup 2 on which a spindle motor 3 capable of outputting a rotation speed of 200 to 10000 rpm is mounted.
Are supported by a tray 5 that supports removal of the disk 1. An eject mechanism for ejecting the disc 1 to the outside of the apparatus using a power source such as a motor is disposed on the tray 5, and an eject button for turning on / off the power source of the eject mechanism when pressed by a user. 6 and a forced eject mechanism 7 for forcibly ejecting the disk out of the apparatus when the power source electric system fails.
Is arranged on the front side in the discharge direction.

When the tray 5 and the optical pickup 2 attached to the tray 5 are stored in the apparatus, the periphery thereof is covered by the lower outer cover 8 and the upper outer cover 9, and the disk 1 is rotating. It does not touch the user's hand during the process. When ejecting the tray 5 to remove the disk 1, the eject button 6 is pressed to turn on the power source of the eject mechanism, and the eject mechanism is operated to eject the disc 5 to the outside of the apparatus. In this case, it is possible to control to eject the tray 5 and the optical pickup 2 after the spindle motor 3 rotating at 200 to 10000 rpm is stopped and the rotation of the disk 1 is completely stopped. On the other hand, when a failure occurs in the electric system of the power source, the forced ejection mechanism 7 is used to forcibly eject the disk 1 out of the apparatus.

In this case, unlike the case where the ejection is performed using the power source such as the motor described above, it is not possible to control the ejection of the tray 5 after the rotation of the spindle motor 3 is completely stopped. However, since the output to the spindle motor 3 is stopped at the same time that the discharge of the tray 5 to the outside of the apparatus is detected, the disk 1 rotates by inertia after the start of the discharge. At a position where the tray 5 on which the optical disc 1 is placed is ejected by about 0.5 mm or more from the start of ejection, the buffer member 4 is arranged on the side surface of the lower exterior cover 8 facing the end face portion of the disc 1. The buffer member 4 has a length of 2 to 30 mm in the ejection direction of the disk 1 and is arranged so as to have a contact amount (bite amount) of about 0.2 to 2 mm from the end surface of the optical disk 1. The material of the cushioning member 4 is a multi-layered cushioning member composed of a material having a large coefficient of friction, for example, a felt material, and a material having elasticity, for example, Neospo material. With such a multilayer structure, a more reliable stopping action can be exhibited. With the above structure, the disc 1 does not touch the cushioning member when the tray 5 is stored.

Further, when the tray 5 starts the discharging operation, the disk 1 comes into contact with the buffer member at a position where the disk is discharged from 0.5 mm to 1.0 mm from the start of the discharging. The contact state at this time will be described with reference to FIG. As shown in FIG. 2, the thickness of the cushioning member 4 is larger than the thickness of the optical disk 1, so that the end surface of the optical disk 1 can be in contact with the upper surface and the lower surface. When the tray 5 on which the optical disc 1 is placed is ejected by about 0.5 mm or more from the start of ejection, the end surface of the rotating optical disc 1 comes into contact with the buffer member 4 as shown in FIG. Further, as shown in FIG. 4, when the disc 1 is ejected, the optical disc 1 comes into contact with and rubs against the buffer member 4 to hinder the rotation of the disc 1. When the disc 1 is ejected out of the apparatus, the rotation stops.

[0018]

As described above, according to the present invention, after the optical pickup on which the tray and the disc are placed starts to be ejected out of the apparatus, the end face of the disc is removed during the process of ejecting the disc from the outer cover. A buffer member having a large coefficient of friction is arranged on the disk side of the outer cover so that the disk is intentionally brought into contact with the disk. However, the rotation can be completely stopped, and the safety in handling can be ensured.

[Brief description of the drawings]

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

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is an enlarged view of a main part during a discharging operation in FIG. 1;

FIG. 4 is an enlarged view of a main part when FIG. 3 is further discharged.

FIG. 5 is a plan view of a conventional disk drive.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disc 2 Optical pickup 3 Spindle motor 4 Buffer member 5 Tray 6 Eject button 7 Forced eject button 8 Lower exterior cover 9 Upper exterior cover

Claims (3)

[Claims] An apparatus has a housing for accommodating the entire apparatus, and a disk mounting / conveying means for mounting a disk and accommodating or discharging the disk from the housing. A disk device, wherein a buffer member is provided in the housing in an area through which a peripheral portion of the disk passes during operation. 2. The disk device according to claim 1, wherein the buffer member has a contact length with a peripheral portion of the disk set in a range of 2 mm to 30 mm. 3. The disk device according to claim 1, wherein said buffer member has a multilayer structure of a material having a large coefficient of friction and a material having elasticity.