JPS637965Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a disk drive device for driving a disk-based information recording medium (hereinafter referred to as a disk) such as a video or audio disk, and in particular, the present invention relates to a disk drive device that drives a disc-based information recording medium (hereinafter referred to as a disk) such as a video or audio disk. To provide disk drives. Generally, a disk is fitted onto a rotating shaft and driven, but the cassette tape can be installed by dropping or inserting it into a cassette holder, similar to the fitting relationship between the reel shaft of a normal cassette tape recorder and the reel hub of the cassette tape. I can't. This is because after the rotation shaft is inserted into the center hole provided in the disk, the disk cannot be rotated unless the guide member that guides the disk to the rotation shaft is removed. In order for the center hole of the disk to fit onto the rotating shaft without eccentricity, it is necessary to align the center of the center hole of the disk with the center of the rotating shaft when the disk is mounted on the disk guide member. Therefore, the present invention was developed in view of these points, and it allows the disk to slide until the center hole of the disk is fitted to the rotating shaft, and after the disk is fitted to the rotating shaft, the disk guide member is moved. The disk guide member is configured to be spaced apart from the disk, and the disk guide member is configured so that the center hole of the disk is always at the position of the rotating shaft when the disk is mounted. Hereinafter, the present invention will be explained in detail with reference to the drawings. FIG. 1 is a perspective view of a disk drive device according to the present invention, FIG. 2 is a side view of the disk drive device when the disk is attached, and FIG. 3 is a side view of the disk drive device when the disk is ejected. 1 is a disk, 2 is a lid body, and 3 is a disk storage box, which is composed of an outer frame 4 and an inner frame 5. Both the lid body 2 and the disk storage box 3 are rotatably mounted on a support shaft 6. Reference numeral 7 denotes a spring that is wound around the support shaft 6 and biases the lid body 2 and the disk storage box 3 so as to be separated from each other. Reference numeral 8 is the main part of the present invention, which is a disk guide member driven by a disk mounting mechanism using a link mechanism, which will be described later.As shown in FIG. The disk 1 is configured to be placed on the sides 10, 10.
Further, both ends have locking holding portions 11, 11, and are connected and locked to the disk mounting mechanism. 12 is a stopper, which is the outer frame 4 of the disk storage box 3 .
It locks with a locking piece 13 formed on the top and restricts the rotation of the lid body 2. FIG. 5 is a diagram showing the configuration of the disk storage box 3 .
A passage hole 1 through which a spindle 6 passes is provided between the outer frame 4 and the inner frame 5.
A locking member 15 with 4 is located. FIG. 6 is an explanatory diagram of the disk holding device,
16 is a turntable on which disc 1 is placed;
It is connected to the rotating shaft 18 of the motor 17. Reference numeral 19 denotes a pressing body that presses the disk 1 with the force applied to the intermediate body 21 by the springs 20, 20. Next, the disk mounting mechanism for driving the disk guide member 8, which is the main part of the present invention, will be explained using FIGS. 7 to 11. FIG. 7 shows the disc mounting mechanism during play of the disc drive device, that is, the link mechanism section 22.
23 is a rotary link fixedly formed on the lid body 2 and having a first long groove 24 and a first pin 25. 2
Reference numeral 6 denotes an intermediate link having a dogleg-shaped long groove 28 with a bent portion 27 in the center and second and third pins 29, 30 at both ends. Further, numeral 31 denotes a support plate which is bent from the bottom chassis 32 and has a second long groove 33 in which the third pin 30 is accommodated. The second pin 29 of the intermediate link 26 is shown in FIGS.
It is engaged with a disk guide member 8 shown in FIG. Therefore, the disk guide member 8 can slide inside the disk storage box 3 together with the drive of the link mechanism 22 , that is, the movement of the second pin 29 of the intermediate link 26. In such a link mechanism section 22 , when the lid body 2 rotates counterclockwise around the support shaft 6 as shown in FIG. It is uniquely determined by the third pin 30 , the dogleg-shaped long groove 28 , the second pin 29 , the first pin 25 of the rotating link 23 , and the first long groove 24 . The same holds true when the lid of the disk storage box 3 shown in FIG. 11 is closed. To explain the mounting operation of the disk of the present invention having such a configuration, first, when the lid is opened as shown in FIGS.
The second pin 29 of the intermediate link 26 also rotates, and the second pin 29 of the intermediate link 26 also rotates.
It is located at the top of the long groove 24, and the disc guide member 8 positions the disc 1 in a position where the non-recording part is exposed. In this state, the lid body 2 is further biased counterclockwise by the spring 7, but the pressing body 19 does not enter the disk storage box 3 due to the engagement between the stopper 12 and the locking piece 13 (see FIGS. 3 and 3). (See Figure 8). Next, when the operator presses the lid 2 in the direction A, the first pin 25 of the rotary link 23 presses down the intermediate link 26 by the link mechanism 22, so that the disk guide member 8 moves along with the sliding of the second pin 29, and The storage box 3 gradually descends downward, and the intermediate link 26 moves to the right (see FIGS. 8 and 9). When the first pin 25 reaches the bent portion 27 of the doglegged long groove 28, the intermediate link 26 can no longer move to the right and is on standby for the rotating shaft 18 and the pressing body 19 to be fitted together. Then, when the operator presses further in the direction A , the first pin 25 approaches the bottom chassis 32 and brings the disk storage box 3 into contact with the protrusion 35 of the front chassis 34. The pin 25 reaches the bottom of the dogleg-shaped long groove 28, and the second pin 29 reaches the bottom of the first long groove 24 by rotating the intermediate link 26 with the first pin 25 as a fulcrum (Fig. 10). and Figure 11). Intermediate link 26 with this first pin 29 as a fulcrum
The disk guide member 8 is moved from FIG. 12 to FIG. 13 by the second pin 29 pushed down by the rotation, and the contact with the disk 1 is released. Furthermore, since the disk guide member 8 is in the position shown in FIG. 7 when the lid is opened, the disk guide member 8 first comes into contact with the disk 1 in an operation opposite to the drive by the link mechanism section 22 when the lid is closed. After that, the lid body 2 is gradually opened, and eventually the V of the disk guide member 8
It is placed on the tapered sides 10, 10 of the letter-shaped recess 9 and reaches the position shown in FIG. Therefore, since the disk guide member 8 is always moved up and down in parallel by the disk mounting mechanism 22 , V
Since the center of gravity of the disc 1 can be positioned at the center of the V-shaped recess 9 of the disc guide member 8 with an accuracy determined by the machining accuracy of the V-shaped recess 9.
If the motor shaft 18 is positioned on the center line of the disk 1, the disk 1 can always be correctly attached to the motor shaft 18 by the disk guide member 8. As described above, according to the present invention, the disk is placed on the disk until it is attached to the rotating shaft, and after the disk is attached, the disk guide member that is spaced apart from the disk is shaped like a V-shape having a valley on the center line of the rotating shaft. Since the recess is provided, the disk can be stably mounted on the rotating shaft without eccentricity.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the present invention, Figure 2 is A of Figure 1.
-A side view as seen from plane A', Figure 3 is a side view of Figure 1 when the disk is ejected, Figure 4 is a perspective view of the disk guide member which is the main part of the present invention, Figure 5 is a perspective view of the disk storage box. 6 is an explanatory diagram of the disk holding device, FIG. 7 is a side view with a part of the front chassis of FIG. 1 removed, and FIGS. 8 to 11 are for explaining the disk mounting mechanism according to the present invention. The accompanying drawings, FIGS. 12 and 13, are diagrams showing the relationship between the disk storage box and the disk guide member. 1... Disc, 2... Lid, 3 ... Disc storage box, 4... Outer frame, 5... Inner frame, 6... Support shaft,
7... Spring, 8... Disc guide member, 9...
V-shaped recess, 10...tapered side, 22 ...disk mounting mechanism.

Claims (1)

[Scope of utility model registration request] A disk storage box consisting of a support shaft, a lid rotatably attached to the support shaft, an outer frame and an inner frame also rotatably attached to the support shaft, and a disk storage box that slides inside the disk storage box. a disk guide member that is movable and that slides the disk until the disk is engaged with a rotating shaft and is separated from the disk after engaging the rotating shaft; and a disk mounting mechanism that slides the disk guide member. 1. A disk drive device characterized in that the disk guide member has a shape having a valley on the center line of the rotation shaft and is configured to engage with the rotation shaft without eccentricity.