JPH0432463B2 - - Google Patents

Description

[Detailed description of the invention] The present invention will be explained in the following order.

A. Industrial field of application B. Outline of the invention C. Prior art D. Problem to be solved by the invention E. Means for solving the problem F. Effect G. Example H. Effect of the invention A. Field of industrial application. The present invention relates to a disk-shaped recording medium mounting drive mechanism that places a disk-shaped recording medium at a predetermined position in a disk player and drives the disk-shaped recording medium to rotate.

B. Summary of the Invention The present invention is provided in a disc player,
In a disc-shaped recording medium mounting drive mechanism that places a disc-shaped recording medium at a preset position in a disc player and rotates it, the disc-shaped recording medium is fixed within the player body and is mounted. , a recording medium drive unit that rotationally drives the mounted disc-shaped recording medium, and a position regulation for the mounted disc-shaped recording medium where the disc-shaped recording medium is placed;
A pull-out position that is separated from the recording medium drive unit and pulled out from the player main body to enable loading of a disc-shaped recording medium, and a pull-out position in the recording medium drive unit to enable mounting of the disc-shaped recording medium to the recording medium drive unit. a recording medium position regulating member that is movable to selectively take an adjacent storage position; , and has an open end, and when approaching the recording medium drive, the recording medium drive enters into the cutout through the open end, thereby causing the recording medium drive to open. By providing a notch forming portion that is disposed around the circumference, undesired contact between the recording medium position regulating member or the recording surface of the disk-shaped recording medium and the recording medium drive unit is avoided. This allows the player body to be made thinner.

C. Prior Art Audio signals, video signals, or both are recorded on a disk-shaped recording medium using mechanical means, optical means, etc., and the signals are mechanically or optically reproduced from the recorded disk-shaped recording medium. A recording/playback method is known. In such a method, it is easy to increase the signal recording density, and high-quality reproduced signals can be obtained;
It has advantages such as easy handling of recording media, and is suitable for video disk systems and digital
It has been put into practical use as an audio disk system.

In these systems, a so-called disk player is used, which rotates a disk-shaped recording medium and reproduces the signals recorded therein. Conventionally, the disk-shaped recording medium is attached to the disk player in a conventional manner. Generally, this can be done manually by the player user.

D. Problems to be Solved by the Invention The manual loading of a disk-shaped recording medium into a disk player as described above requires accurate positioning of the disk-shaped recording medium to the recording medium drive unit and prevention of eccentric rotation. It is troublesome to carefully place the medium, and there is also a risk of inadvertently touching the recording surface of the disk-shaped recording medium and damaging or contaminating the recording surface.

Therefore, in order to avoid the inconvenience associated with such manual loading, it has been proposed to automatically load a disk-shaped recording medium into a recording medium drive section of a disk player. For example, if you use a case called a casing and put a disc-shaped recording medium inside the casing, and then attach the casing containing the disc-shaped recording medium to a disc player,
A mechanism has been proposed in which a disc-shaped recording medium is exposed to the outside of the disc player and placed at a predetermined position. However, such a conventional automatic loading mechanism has the disadvantage that it becomes extremely complicated and expensive, and also increases the size of the disc player equipped with it, which in particular becomes an obstacle to making the disc player thinner. It was hot.

In view of the above, the present invention provides a method for automatically loading a disc-shaped recording medium into a disc player so that the disc-shaped recording medium can be placed at a preset position in the disc player and rotated. Moreover, the configuration is relatively simple, and
It is an object of the present invention to provide a disk-shaped recording medium mounting drive mechanism that allows a disk player to be made thinner without the risk of damaging the recording surface of the disk-shaped recording medium.

E. Means for Solving the Problems In order to achieve the above-mentioned object, a disk-shaped recording medium mounting drive mechanism according to the present invention is arranged inside a player main body and a disk-shaped recording medium is mounted therein. A recording medium drive section that rotationally drives the disc-shaped recording medium that has been placed, and a recording medium drive section that controls the position of the disc-shaped recording medium that is placed on the disc-shaped recording medium. a recording medium position regulating member that is movable in a direction toward and away from the recording medium;
A pull-out position that engages with the recording medium position regulating member and is pulled out from the player body away from the recording medium drive unit so that a disk-shaped recording medium can be placed on the recording medium position regulating member and close to the recording medium drive unit. a moving means that moves to selectively take a storage position; and a recording medium drive unit that moves a disk-shaped recording medium placed on the recording medium position regulating member when the recording medium position regulating member is in the storing position. and a recording medium mounting means, wherein the recording medium position regulating member includes a position below the central portion of the disc-shaped recording medium when the disc-shaped recording medium is position-regulated, and includes a position below the central portion of the disc-shaped recording medium, When the recording medium drive unit is provided with a notch forming part that forms a notch and is moved by a moving means to take a storage position, The notch forming portion is arranged around the recording medium drive unit.

F Effect In the disc-shaped recording medium mounting drive mechanism according to the present invention configured as described above, in a state where the recording medium position regulating member assumes a pulled-out position where it is pulled out from the player body by the moving means,
A disk-shaped recording medium is placed on the recording medium position regulating member and subjected to position regulation by the recording medium position regulating member. Thereafter, the recording medium position regulating member on which the disk-shaped recording medium is placed is moved from the pull-out position to the storage position close to the recording medium drive section by movement of the moving means, and the recording medium position regulating member moves from the storage position to the storage position. At the time of removing the recording medium, the recording medium drive unit is placed in a notch formed by a notch forming portion provided in the recording medium position regulating member. In other words, the notch formed in the recording medium position regulating member is positioned around the recording medium drive unit. Then, the disk-shaped recording medium placed on the recording medium position regulating member in the storage position is moved to the recording medium drive section and mounted on the recording medium drive section, and the disk-shaped recording medium mounted thereon is moved to the recording medium drive section. The recording medium is rotationally driven.

In this way, when the recording medium position regulating member assumes the storage position, the recording medium drive unit enters into the notch formed by the notch forming portion provided in the recording medium position regulating member, so that The recording medium position regulating member can be moved between the drawn-out position and the storage position relatively smoothly without causing the lower surface or the recording surface of the disk-shaped recording medium to undesirably come into contact with the recording medium drive unit. It is arranged at a low position, and as a result, it is possible to reduce the thickness of the player body.

Further, in the disk-shaped recording medium mounting drive mechanism according to the present invention, since the disk-shaped recording medium is handled without being housed in a case, cartridge, etc., the overall configuration is relatively simple. .

G Embodiment FIGS. 1 to 5 show the whole and parts of a player to which an example of the disk-shaped recording medium mounting drive device according to the present invention is applied, and in particular, FIG. 2 shows a cross section taken along the line - in FIG. shows.

1 to 5, the player is provided with a side plate 1, and a sliding member 2 is provided on this side plate 1.
is slidably attached. Such attachment is achieved, for example, by providing a groove (not shown) in the sliding member 2 and arranging a protrusion or roller (not shown) in the side plate 1 that engages with the groove. The sliding member 2 consists of a guide portion 2a and a flat plate portion 2b, and a plate body 3, which forms part of the outer case of the player, is fixed thereto. A rack plate 4, which will be described in detail later, is built into the guide portion 2a, and the rack at the bottom of the rack plate 4 is connected to a pinion gear 5 (FIGS. 4 and 5) provided on the player body.
The sliding member 2 is driven to slide.
In FIG. 1, the sliding member 2 is shown pulled out from the player body (solid line), and from this state it slides left and right in the figure and is pulled into the player body. The retracted state is indicated by two-dot chain lines 2' and 3'. Note that FIG. 2 is a cross-sectional view of the sliding member 2 in a retracted state.

A recording medium position regulating member 6 for regulating the position of a disk-shaped recording medium is disposed below the flat plate portion 2b of the sliding member 2.
A disk-shaped recording medium is placed thereon, and as the structure is clearly shown in FIG. It has a position regulating part 6a that holds the recording medium and regulates its position, and the position regulating part 6a passes through a hole provided in the flat plate part 2b of the sliding member 2 and faces above the flat plate part 2b. be done. 7 indicated by the chain double-dashed line in Figure 1.
and 7' indicate a state in which the position of the disk-shaped recording medium is regulated by the position regulating portion 6a of the recording medium position regulating member 6.

In addition, the recording medium position regulating member 6 has a relatively large size including a position below the central portion of the disc-shaped recording medium when the disc-shaped recording medium is subjected to position regulation by the position regulating portion 6a. A notch forming portion 6c that forms a notch 6x is provided. The notch forming portion 6c has an open end disposed on the side opposite to the plate 3 fixed to the sliding member 2, and a semicircular notch 6x is formed from the open end toward the plate 3. It is designed so that Further, the recording medium position regulating member 6 is provided with a pin 6b, and the pin 6b engages with an inclined hole 4a formed in the rack plate 4, whereby the recording medium position regulating member 6 can be moved up and down by movement of the rack plate 4 guided by the inclined hole 4a.

The player has a tracking member holding member 8.
A chucking member holding member 8 is also provided.
A chucking member 9 is rotatably attached to. The chucking member 9 has a built-in magnet 9a and performs magnetic chucking. A recording medium drive unit 10 is arranged below the tracking member 9. The recording medium driving section 10 is configured to have a disk-shaped recording medium mounted thereon, and is rotated by a motor 11 to rotationally drive the mounted disk-shaped recording medium.

4 shows a side view of the player shown in FIG. 1, and FIG. 5 shows a side view of the rack plate 4 alone. From these figures, it can be seen that a long hole 8a is formed in the side surface of the chucking member holding member 8.
It can be seen that the pin 1a provided on the side plate 1 of the player is fitted into the elongated hole 8a. Thereby,
The chucking member holding member 8 is capable of vertical movement with respect to the side plate 1 within the range of the elongated hole 8a.
A pin 8b protrudes from the inside of the side surface of the chucking member holding member 8, and engages with cam plates 12a and 12b fixed to the rack plate 4, and as the rack plate 4 moves, the pin 8b engages with the cam plate. The entire chucking member holding member 8 is moved up and down while being guided by the inclined portion of 12a or 12b.

A long hole 2c is formed in the guide portion 2a of the sliding member 2, and a pin 4b provided on the rack plate 4 is fitted into this long hole 2c. This allows the rack plate 4 to move relative to the sliding member 2 within the range of the elongated hole 2c. A stopper 13 is fixed to the side plate 1 to engage with a notch 14 provided in the guide portion 2a of the sliding member 2 to restrict movement of the sliding member 2.

In a player with such a configuration,
A disk-shaped recording medium mounting drive mechanism according to the present invention includes a sliding member 2, a rack plate 4, a pinion gear 5, a recording medium position regulating member 6, a chucking member holding member 8, a recording medium drive unit 10, etc. An example of this is configured.

Figures 1, 2, and 4 are equipped with such a disk-shaped recording medium mounting drive mechanism.
In the player shown in the figure, reproduction of signals from a disk-shaped recording medium is performed optically.
That is, the disk-shaped recording medium loaded in the recording medium drive unit 10 is irradiated with laser light from an optical head (not shown) from below and scanned in its radial direction. In connection with this, a laser beam blocking plate 8c protrudes from the tracking member holding member 8 and is disposed above the moving path of the optical head, so as to block the laser beam from the optical head coming from below. ing.

Based on the above-described configuration, when a disk-shaped recording medium is installed in the recording medium drive section 10, it first slides toward and away from the recording medium drive section 10. The sliding member 2 is in a state separated from the recording medium drive section 10, that is, in a state shown in FIG. 1 in which it is pulled out from the player body. At this time, the tracking member holding member 8
is the position where the pin 8b engages with the cam plate 12a of the rack plate 4 and is moved upward. In this state, the recording medium position regulating member 6 assumes a pulled-out position where it is separated from the recording medium drive unit 10 and pulled out from the player body along with the sliding member 2.
A disk-shaped recording medium is placed so as to be held by the position regulating portion 6a as shown at 7 in FIG.

Next, the pinion gear 5 is rotated to drive the rack plate 4, thereby causing the sliding member 2 with the recording medium position regulating member 6 to slide close to the recording medium drive section 10. 1, and moves to the positions indicated by two-dot chain lines 2' and 3' in FIG. At this time, the recording medium position regulating member 6
As the sliding member 2 moves, the recording medium position regulating member 6 is housed in the player main body and approaches the recording medium drive unit 10, and assumes a storage position near the recording medium drive unit 10. A disk-shaped recording medium placed on the disk is brought above the recording medium drive section 10 as indicated by 7' in FIGS. 1 and 2. In this way, when the recording medium position regulating member 6 takes the storage position near the recording medium drive section 10, the notch 6x formed by the notch forming part 6c provided in the recording medium position regulating member 6 is inserted. The recording medium drive section 10 is brought into the state,
Therefore, the notch forming portion 6c provided in the recording medium position regulating member 6 is placed around the recording medium drive unit 10 without coming into contact with it.

In this state, the movement of the sliding member 2 is restricted by the stopper 13 engaging with the notch 14 provided in the guide portion 2a, but the rack plate 4 continues to move within the range permitted by the elongated hole 2c. It is driven and then stopped by stopping the pinion gear 5. This stopping of the pinion gear 5 is accomplished by means associated with the rack plate 4.

When only the rack plate 4 moves, the pins 6b of the recording medium position regulating member 6 move into the inclined holes 4 of the rack plate 4.
By being guided by a, the entire recording medium position regulating member 6 is moved downward. As a result of this movement, the disk-shaped recording medium whose position has been regulated by the position regulating section 6a of the recording medium position regulating member 6 leaves the position regulating section 6a, and its center hole is fitted into the recording medium drive section 10. It is attached to the recording medium drive section 10. The tip of the recording medium drive unit 10 is tapered so that the center hole of the disk-shaped recording medium can be easily fitted therein.

Further, when only the rack plate 4 moves, the pin 8b of the chucking member holding member 8 engages with the cam plate 12b of the rack plate 4 and is guided by the inclined portion of the cam plate 12b, thereby causing the chucking member holding member to move. The whole of 8 is moved downward to the state 8' shown by the two-dot chain line in FIG.
As a result, the chucking member 9 descends toward the recording medium drive unit 10, and the disc-shaped recording medium is held between them. That is, the disk-shaped recording medium is chucked.

After that, the recording medium drive unit 10 drives the motor 11
The disc-shaped recording medium mounted thereon is rotated by the disc-shaped recording medium.

Note that the recording medium drive section 1 of the disk-shaped recording medium
Detachment from 0 is performed by an operation opposite to the above-mentioned mounting operation. That is, first, the pinion gear 5 is rotated in the opposite direction to that when installed, and thereby the rack plate 4 is moved in the opposite direction to that when installed within the range allowed by the elongated hole 2c. As a result, the tracking member holding member 8 is moved upward,
Chucking of the disc-shaped recording medium by the chucking member 9 is released, and at the same time, the recording medium position regulating member 6 is moved upward, so that the disc-shaped recording medium leaves the recording medium drive section 10 and moves to the recording medium position regulating member. It is held by the position regulating part 6a of No.6. Thereafter, by continuing to drive the rack plate 4 by the pinion gear 5, the sliding member 2 is slid away from the recording medium drive section 10, and the recording is performed as shown in FIG. The medium position regulating member 6 returns to the initial state in which it assumes the pulled-out position.

H. Effects of the Invention As is clear from the above description, according to the disk-shaped recording medium mounting drive mechanism according to the present invention, a disk-shaped recording medium is placed, and the placed disk-shaped recording medium is A recording medium position regulating member that regulates the position is provided with a notch forming portion that forms a notch that includes a position below the central portion of the disc-shaped recording medium whose position is regulated, and the recording medium position regulating member slides. When the recording medium drive section is moved from the drawn-out position to the storage position by the member, the recording medium drive section is formed by the notch forming part provided in the recording medium position regulating member. By entering into the notch, the recording medium position regulating member is
The lower surface and the recording surface of the disk-shaped recording medium whose position is regulated by it can be moved between the pulled out position and the storage position without causing an undesirable contact with the recording medium drive unit. As a result, the player body can be made thinner.

Further, in the disk-shaped recording medium mounting drive mechanism according to the present invention, the position of the disk-shaped recording medium is directly regulated by the recording medium position regulating member in a state where the disk-shaped recording medium is not housed in a case, a cartridge, etc. Since it is directly attached to the recording medium drive unit, the overall configuration can be made relatively simple.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a player to which an example of the disk-shaped recording medium mounting drive mechanism according to the present invention is applied, FIG. 2 is a cross-sectional view taken along the - line in FIG. 1, and FIG. FIG. 4 is a side view of the player shown in FIG. 1, and FIG. 5 is a perspective view showing an example of a recording medium position regulating member used in an example of a disk-shaped recording medium mounting drive mechanism. FIG. 5 is a side view of the player shown in FIG. FIG. 3 is a side view showing a rack plate used in an example of the mounting drive mechanism. In the figure, 2 is a sliding member, 4 is a rack plate, 5 is a pinion gear, 6 is a recording medium position regulating member, 6c is a notch forming part, 6x is a notch, 8 is a chucking member holding member, and 10 is a recording medium drive Part 11 is a motor.

Claims (1)

[Scope of Claims] 1. A recording medium drive section 10 which is arranged inside a player body and has a disk-shaped recording medium mounted thereon, and which rotates and drives the mounted disk-shaped recording medium; a recording medium position regulating member 6 which is to be placed, regulates the position of the placed disk-shaped recording medium, and is movable in directions approaching and away from the recording medium drive unit 10; , is engaged with the recording medium position regulating member 6 and is pulled out from the player main body away from the recording medium drive section 10 so that a disc-shaped recording medium can be placed on the recording medium position regulating member 6. When the moving means 2 that moves to selectively take a pull-out position and a storage position close to the recording medium drive unit 10 and the recording medium position regulating member 6 are in the storage position,
The recording medium position regulating member 6 includes recording medium mounting means 4 and 5 for mounting the disk-shaped recording medium whose position is regulated by the recording medium position regulating member 6 into the recording medium drive unit 10, and the recording medium position regulating member 6 A notch forming portion 6c is provided to form a notch 6x which includes a position below the central portion of the disc-shaped recording medium and has an open end when the disc-shaped recording medium is regulated in position. At the same time, when the recording medium drive section 10 is moved by the moving means 2 to take the storage position, the recording medium drive section 10 enters the notch 6x formed by the notch forming section 6c through the open end of the notch 6x. Infiltration,
A disc-shaped recording medium mounting drive mechanism characterized in that the notch forming portion 6c is arranged around the recording medium drive unit 10.