JPH11162066A - Door mechanism for disk drive unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the door mechanism of a disk drive unit in which operations of the opening and closing of a door for dustproof and the insertion of a disk are simplified with a simple constitution and a disk whose size is different from a prescribed size is made to be ejected when it is inserted into a device. SOLUTION: In a slot-in type disk driving device recording and reproducing information with respect to the disk inserted from a disk inserting port in a device, this device is provided with one pair of doors 5A, 5B which respectively have turnable fulcrums at respective side parts of a disk inserting port 2 and which are made so as to be turned to the inside of the device and which open and close the disk inserting port 2 and spring back coil springs 7 for biasing respective doors 5A, 5B in order to make them close the disk inserting port 2 and, moreover, V-shaped grooves 8 which are parallel with the surface direction of the disk inserted into the disk inserting port 2 and which receive the periphery of the disk to guide it into the inside of the device are formed in respective doors 5A, 5B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slot-in type disk drive for recording / reproducing information at a predetermined position in a disk medium inserted from a slot.

[0002]

2. Description of the Related Art A slot-in type disk drive generally has a dedicated door which is opened only when a disk is inserted and which is always closed to prevent dust at a disk insertion portion. I have. The user performs the opening and closing operation. Alternatively, a dedicated mechanism is provided to perform the operation electrically.

[0003]

In the above-mentioned disk drive device, a dedicated door for dust prevention is provided, so that the number of parts increases and the opening and closing operation of the door is troublesome. In addition, for example, when an 8 cm disc having a size different from 12 cm applied to such a device is inserted by mistake, the disc cannot be moved to the ejecting operation, so that the disc falls into the inside, There was a risk of jamming. In order to prevent this, there is a problem that the mechanism becomes complicated.

In order to solve the above-mentioned problems, the present invention simplifies the operation of opening and closing a dustproof door and inserting a disk with a simple structure, and furthermore, a disk having a size different from a predetermined size. An object of the present invention is to provide a door mechanism of a disk drive device in which a jam does not occur even when a disc is inserted.

[0001]

According to the present invention, there is provided a slot-in type disk drive device for recording / reproducing information at a predetermined position in a device with respect to a disk medium inserted from a slot. A pair of doors each having a rotation fulcrum on each side of the slot so as to be rotatable inside the apparatus so as to open and close the slot, and biasing the doors to close the slot; And a guide groove which is parallel to the surface direction of the disk medium inserted into the slot and which receives and guides the peripheral edge of the disk medium, is formed on each of the doors. I have.

[0006] When a disk medium is inserted from the slot, the leading edge of the peripheral edge of the disk medium enters the guide groove of each closed door and abuts at the beginning. When the disk medium is pushed in from this state, each door shifts to the opening operation against the urging of the urging member. When the disk medium is further pushed in, the peripheral edge of the disk medium is in sliding contact with each guide groove, and each sliding contact part is shifted to the peripheral edge on the near side of the disk medium, so that the mutual interval between the sliding contact parts increases. The opening operation proceeds accordingly. During this pushing operation, the urging of the urging member exerts a component force in the direction of discharging the disk medium to each sliding contact portion, and the disk medium is urged in the discharging direction.

[0002]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a simplified diagram showing a main part of a disk drive device as an embodiment of the present invention, in which (a) is a plan view, (b) is a front view, and (c) is a side view. . In addition, in (a) and (b) of the same figure, the principal part is shown in a see-through state for convenience. In FIG. 1, reference numeral 1 denotes a housing of a disk drive device, in which a series of disk drive mechanisms is housed. Reference numeral 2 denotes a disk insertion slot (slot) for taking in and out a disk medium (hereinafter, referred to as a disk) described later. And, in order to make it easier to insert the disk, it is formed with an inclined surface which becomes wider from the inside to the outside.

[0003] Reference numeral 3 denotes a P / U unit for mounting a disk and recording / reproducing information with a turntable 4 for mounting a disk and an optical mechanism (not shown) for recording / reproducing information. ing. Reference numerals 5A and 5B denote a pair of dustproof doors according to the present invention, one end of which is pivotally mounted on each of the rotation center shafts 6 implanted on each side of the disc insertion slot 2, respectively. Fig. 1
Extends parallel to the horizontal direction. Then, as shown by a two-dot chain line, the inside of the housing 1 is rotatable, and the other end thereof is always in a state of being abutted to close the disc insertion slot 2 from the inside, so that the dustproof structure is provided. Has made.

Reference numeral 7 denotes a torsion coil spring which urges the doors 5A and 5B to close the disc insertion slot 2.
Each end is attached to the housing 1 and the door 5A or 5B.

FIG. 2 is an enlarged sectional view showing a main part of each door 5A, 5B. As shown in the figure, each door 5A, 5B has
A V-shaped groove (guide groove) 8 is formed over the entire length thereof, and receives and guides a peripheral edge of a disk D, which will be described later, is parallel to the surface direction of the disk inserted from the disk insertion opening 2 and is described later. The V-shaped groove 8 serves both as opening and closing of a door for dust prevention and as a guide for inserting the disk D.

Reference numeral 9 denotes an operation lever for attaching and detaching the inserted disk D. The operation lever is always in a horizontal position so that the disk D can be inserted. The disk D is ejected when it is returned to the horizontal position after the drive is stopped.

Next, the operation when a disc is inserted will be described.
FIGS. 3, 4, and 5 are simplified diagrams showing the operation of each door 5A, 5B. 5A is a plan view, and FIG. 5B is a side view showing an operation state of the operation lever 9. In each figure,
D is a disk medium (disk), which is indicated by a solid line for convenience, and states different from each other are shown in the same drawing as necessary (similarly for each door 5A, 5B). In addition,
It is assumed that a disk D of 12 cm is applied to the present disk drive device.

As shown in FIG. 3, the operating lever 9 is always in a horizontal position so that the disc D (see FIG. 4) can be inserted. Each of the doors 5A and 5B closes the disc insertion slot 2 from the inside to form a dustproof structure. At this time, the P / U unit 3 is retracted below a fixed position when the disk is driven by a mechanism (not shown) so that the disk D can be inserted to a predetermined position above the P / U unit.

When the disc D is inserted through the disc insertion slot 2 (see FIG. 1), at the beginning, the leading edge of the periphery of the disc D is closed at the V-shaped groove at the butting portion of the doors 5A and 5B. 8. When the disc D is pushed in from this state, the doors 5A and 5B shift to the opening operation against the bias of the torsion coil spring 7. When the disk D is further pushed in, the peripheral edge of the disk D comes into sliding contact with each V-shaped groove 8 and each sliding contact portion moves to the peripheral edge on the front side of the disk D, as shown in FIG. The opening operation proceeds as the distance between the contact portions increases. During the pushing operation, the urging force of the torsion coil spring 7 causes a component force in the direction of discharging the disk D to each sliding contact portion, so that the disk D is urged in the discharging direction.

When the disk D reaches a predetermined position shown on the right side in FIG. 4, the lever 9 can be operated in a vertical position. When the operation is performed, the P / U is operated by a mechanism (not shown) interlocked with the lever 9. Unit 3 is raised. Similarly, each door 5A, 5
B is spread out to a position away from the disk D as shown in FIG. 5, and the disk D is mounted on the turntable 4. Further, the P / U unit 3 is moved slightly to the right side of the position shown in FIG. 4 (for convenience, the amount of movement is shown small), and is stopped at the predetermined position.

FIG. 6 is a diagram for explaining the operation when a disk d having a diameter smaller than a predetermined size is erroneously inserted. In a state where a disk d having a diameter smaller than the predetermined size, for example, 8 cm, is inserted to the vicinity of the position shown in FIG. 3, the disk d is urged in the discharging direction as described above.
When the user releases his hand in this state, the disc d is ejected by the urging. And each door 5A, 5B returns to a closed state. Since the disk d having such a small diameter is reliably ejected, there is no possibility that the disk d cannot be taken out or fall into the housing 1.

When the lever 9 is operated from the state shown in FIG.
After the U unit 3 is moved slightly to the left, each door 5A, 5A
The disk D is inserted into the V-shaped groove 8 by moving B in the closing direction. Thereafter, the disc D is ejected by the urging of the torsion coil spring 7 in an operation reverse to that at the time of insertion. And each door 5A, 5B returns to a closed state. In this way,
With only the operation of the lever 9 and the operation of inserting the disk D, the opening and closing of the door for dust prevention and the mounting and dismounting of the disk can be performed, thereby simplifying the operation. Since the periphery of the disk D is fitted into the V-shaped groove 8 and does not contact the recording surface of the disk D, the recording surface is not damaged.

Although the embodiment in which the disk D is inserted manually has been described above, when the disk D is applied to the motor loading type, the point at which the disk D is shifted from manual operation to motor driven movement. However, it is set so as to correspond to a position slightly shifted to the right from the position shown on the left side in FIG. 4, that is, a state in which the doors 5A and 5B are more fully opened than the position shown in FIG.

As the disk D of the present invention, a music CD, V-CD, CD ROM, DVD, game machine CD, or the like is used.

[0011]

According to the present invention, there is provided a pair of doors for opening and closing a slot which has a rotation fulcrum on each side of a slot for inserting and removing a disk medium, and which can be rotated inside the apparatus. A biasing member for biasing each door to close the slot, and each door is formed by forming a guide groove for receiving and guiding the periphery of the disk medium inserted into the slot, The structure is simple, and dust proof in the slot and the insertion operation of the disk medium are performed by a simple operation. When the disk medium is pushed in, each door is opened against the urging of the urging member while being guided by the guide groove, and during this pushing operation, each door is urged by the urging of the urging member. Since a component force in the direction of discharging the disk medium is applied to the contact portion, when a small-sized disk medium other than a predetermined size is inserted, when the pressing operation is released, the disk medium is discharged, Therefore, there is no possibility that the disk medium cannot be taken out or dropped into the apparatus.

[Brief description of the drawings]

FIG. 1 is a simplified diagram showing a main part of a disk drive device as an embodiment of the present invention.

FIG. 2 is an enlarged sectional view showing a main part of the door.

FIG. 3 is a simplified diagram showing an operation of a door.

FIG. 4 is a simplified diagram showing an operation of a door.

FIG. 5 is a simplified diagram showing the operation of the door.

FIG. 6 is a diagram illustrating an operation when a disc having a diameter smaller than a predetermined size is inserted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Disk insertion slot (slot) 3 P / U unit 4 Turntable 5A, 5B Door 6 Rotation center shaft 7 Torsion coil spring (biasing member) 8 V-shaped groove (guide groove) 9 Operation lever D Disk medium (disk)

Claims (1)

[Claims] 1. A slot-in type disk drive device for recording / reproducing information at a predetermined position in a device with respect to a disk medium inserted from a slot, wherein said slot has a rotation fulcrum on each side of said slot. A pair of doors rotatable inside the device to open and close the slot; and a biasing member biasing the doors to close the slot. A door mechanism for a disk drive device, wherein a guide groove is formed parallel to a surface direction of the disk medium inserted into a slot and configured to receive and guide a peripheral edge of the disk medium.