JPS62209765A - Disk driving device - Google Patents

Abstract

PURPOSE:To eliminate a cartridge holder, and to reduce the number of parts, by performing the loading and the ejection of a cartridge using a guide plate, a sliding plate, and a loading leaf spring. CONSTITUTION:With a disk cartridge 3, a sliding plate 2 movable freely reciprocally in the parallel direction of the inserting direction of the disk cartridge, and an energizing means which always energizes the sliding plate 2 to a disk cartridge inserting entrance 5 side, are provided. Also, the title device is equipped with a guide plate 6 possible to rock freely which is arranged at the back of the inserting entrance 5 of the disk cartridge, and makes incline the disk cartridge 3 at an angle to avoid a turntable 4 at least in the inserting time of the disk cartridge 3, and is held off up the loading height of the disk cartridge 3 in a loading time, a rocking end 6a that is a rocking means to block the movement of the sliding plate 2 to the disk cartridge insertion entrance 5 side in the loading time, and a repressing means 7 which represses the disk cartridge 3 in the direction of the turntable 4.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a disc that records and/or reproduces information on a recording medium by rotationally driving a recording medium such as a magnetic recording medium or an optical information recording medium. It relates to a drive device.

(Prior Art) As an example of a disk drive device, there is a recording/reproducing device disclosed in Japanese Utility Model Application Publication No. 59-107792 filed by the present applicant.This is shown in FIGS. 5 to 7. This conventional example will be explained based on the same figure.

The magnetic disk 51 is rotatably housed in a disk car 1 hinge 52 made of hard synthetic resin, and a hub 54 with the magnetic disk 51 sandwiched in the center is exposed through a transparent light 53 provided in the center of the cartridge 52. Car 1~S
A magnetic head insertion opening 55 formed at a predetermined position of the screw 52
A closing member 56 made of a metal plate is rotatably arranged at the lower part of the housing.

On the other hand, a cartridge insertion slot 59 and an eject button 6° are provided in the front frame 61a of the main body 61 of the recording/reproducing apparatus, and the rear part of the cartridge insertion r159 is guided into a key-shaped hole 64 formed in each side wall of the main body 11. roller 65
A cartridge holder 66 is provided with a side portion thereof. This cartridge holder 66 is always urged downward in the direction of the front frame 61a by a tension spring 67 provided between the cartridge holder 66 and the main body 61, and when the disk cartridge 52 is not inserted, as shown in FIG. The tension spring 67 positions the roller 65 at the tip of the horizontal portion 64a of the hole 64.

Further, as shown in FIG. 5, a support portion 71 of a holding portion 7° for pressing the hub 54 of the magnetic disk 51 against the turntable 69 is provided at the front upper part of the cartridge holder 66. Further, at the rear end of the cartridge holder 66, there is a bent portion 75 that is bent downward and comes into contact with the leading end of the cartridge 52.

A slide plate 77 is connected to the eject button 6o, and the slide plate 77 has a pin 77a on its side that is guided into a long hole 76 formed in the side wall of the main body 61. This slide plate 77 has the roller 65 at the vertical portion 64b of the key-shaped hole 64.
An inclined portion 7B that can come into contact with is provided.

Therefore, by inserting the disk cartridge 52 into the cartridge holder 66 through the cartridge insertion opening 59 and pressing the bent portion 75, the roller 65 is inserted into the key-shaped hole 66.
Since the roller 65 is moved to the lower part of the vertical portion 64b by the elastic force of the tension spring 67, the cartridge holder 66 is also pushed down, and the cartridge holder 66 is in a loaded state. Then, the hub 54 of the magnetic disk 51 is pressed against the turntable 69 by the holding part 70 provided in the cartridge holder 66, and the magnetic disk 51 becomes rotatable, and the magnetic disk 51 is moved toward the magnetic head 72. It is pressed and becomes ready for recording and playback.

To return the loaded cartridge holder 66 to its pre-loaded state, the eject button 60 is pushed inward.

Then, the roller 65 located below the vertical part 64b of the key-shaped hole 64 is pushed up by the inclined part 78 of the push-up member 77, and the roller 65 is held between the inclined part 78 and the vertical part 64b. When the roller 65 ascends and reaches the horizontal portion 64a, the contact relationship between the inclined portion 78 and the roller 65 is lost, so that the roller 65 moves to the tip of the horizontal portion 64a by the action of the tension spring 67 of the cartridge holder 66. This roller 6
As the cartridge holder 5 moves, the cartridge holder 66 also rises, further moves toward the cartridge insertion port 59, and returns to the loading state.

[Problem that the invention seeks to solve]

By the way, in the above conventional example, in order to move the cartridge holder 66 toward the turntable 69 and load the magnetic disk 51, a key-shaped hole 64 formed in the side plate of the main body 61 and a key-shaped hole 64 formed in the slide plate 77 are used. inclined part 78
and a roller 65 protruding from the cartridge holder 66.
A tension spring 67 is required to urge the cartridge holder 66 toward the turntable 69, and a slide plate 77 is required.
In the process of reciprocating the disk cartridge 52, the roller 65 is displaced to the horizontal portion 64a and vertical portion 64b of the hole 64, thereby loading and unloading the disk cartridge 52.

Therefore, for loading, the main body 61, slide plate 77, and cartridge holder 66 are required as large members.
was needed. However, when considering cost reduction, although the main body 61 is absolutely essential, there seems to be room for consideration regarding other members.

The present invention has been made from the above viewpoint, and its purpose is to provide a low-cost disk drive device with a small number of parts.

[Means for solving problems]

In order to achieve the above object and solve the problems inherent in the conventional example, the present invention introduces a disk cartridge containing an information recording medium formed in a disk shape, and loads the information recording medium onto a turntable. In a disk drive device that performs recording and/or playback, there is a slide plate that can reciprocate along with the disk cartridge in a direction parallel to the insertion direction of the disk cartridge, and an enemy force that constantly moves this slide plate toward the disk cartridge insertion slot. means, a swingable guide plate disposed behind the disk cartridge insertion opening, which tilts the disk cartridge at an angle that avoids at least the turntable when the disk cartridge is inserted, and retracts to at least the loading height of the disk cartridge when loading; It has a structure that includes a locking means for preventing the slide plate from moving toward the disk cartridge insertion opening during loading, and a pressing means for pressing the disk cartridge toward the turntable.

[Effect]

According to the above means, even if there is no cartridge bolt, the information recording medium can be
The disc (hereinafter referred to as a disc) is loaded onto the turntable.

That is, when a cartridge is inserted through the disk cartridge insertion slot (hereinafter referred to as Car 1 to Rizji insertion slot), the cartridge enters the cartridge in a tilted direction away from the head along the guide plate arranged behind the cartridge insertion slot. It comes into contact with a part of the slide plate and reaches the deepest part of the drive device together with the slide plate. When the guide plate reaches a preset position, the guide plate tilts parallel to the rotating surface of the turntable, making the disk cartridge parallel to the rotating surface. At this time, since the disc cartridge is pressed toward the turntable, the disc is just loaded onto the turntable.

〔Example〕

An example of implementing the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of the main parts of a disk drive device according to an embodiment of the invention, and FIGS. 2 to 10 are side views of the main parts for explaining the operation.

In FIG. 1, the disk drive device includes a frame 1, a slide plate 2 that reciprocates on the bottom plate 1a of the frame 1, a turntable 4 that rotationally drives the disk in the cartridge 3, and a cartridge insertion slot 5. Guide plate 6 placed behind
and a temporary spring 7 as a pressure means shown in FIG.

A positioning pin 8 is provided from the bottom surface 1a of the frame 1 to regulate the sliding position of the slide plate 2, and also comes into contact with the bottom surface of the cartridge 3 to define the height from the magnetic head (not shown).
is erected, and a slit-shaped cartridge insertion opening 5 is formed on the negative side. In addition, the bottom plate 1a includes
A turntable 4 having a flywheel 4a formed on its outer periphery is rotatably attached, and is driven by a motor (not shown) via a belt.

A contact portion 9 is formed on the slide plate 2 so as to rise on the side opposite to the disk cartridge insertion side, and a protrusion 10 for changing the inclination of the guide plate 6 is formed on the end on the cartridge insertion opening 5 side. . This slide plate 2 is capable of reciprocating along a guide groove 11 into which the positioning pin 8 is inserted. A tension spring 12 is tensioned between the end of the slide plate 2 on the side where the protrusion 10 is formed and the front plate 1b of the frame body 1 where the cartridge insertion port 5 is formed, so that the slide plate 2 is always pushed toward the cartridge insertion port 5 side. It is strong.

The guide plate 6 is rotatably supported by a support shaft 13 provided on the side plate IC of the frame l behind the cartridge insertion slot 5, and has an ejector on the negative side that rotates integrally with the guide plate 6. A lever 14 is provided. As shown in FIG. 2, the upper surface of the guide plate 6 is a sloped surface such that the turntable side is slightly higher than the cartridge insertion port side, and a tension spring 15 is applied so that the lower surface side contacts the protrusion 10. Figure 2 shows enemy forces moving counterclockwise.

The leaf spring 7 is attached to the upper plate 1d of the frame 1 and comes into contact with the upper surface of the inserted cartridge 3, so that the cartridge 3
The disk in the cartridge 3 is loaded onto the turntable 4 by pressing in the direction of the turntable 4.

Although not particularly shown, a magnetic head is provided on the side of the cartridge insertion slot 5 opposite to the turntable 4, and this magnetic head performs recording and/or reproduction.

Other parts that are not particularly explained are constructed in accordance with the conventional example.

Subsequently, the loading and ejecting operations of the disk drive device having the configuration described in -F will be explained.

First, as shown in FIG. 2, when the cartridge 3 is inserted through the cartridge insertion opening 5, the cartridge 3 is inserted into the frame 1 along the slope of the upper surface of the guide plate 6. The center of inclination J may be formed at an angle sufficient to allow the case portion of the cartridge 3 to pass over the turntable 4.

As the cartridge 3 continues to be inserted, it passes over the turntable 4, and the leading end of the cartridge 3 comes into contact with the contact portion 9 of the slide plate 2, as shown in FIG.

When the cartridge 3 is further pushed in against the elastic force of the tension spring 12, the slide plate 2 slides along the guide groove 1 to the position shown in FIG. At that position, the end of the protrusion 10 forming portion of the slide plate 2 on the side of the cartridge insertion port 5 comes off from the swinging end 6a (locking means) of the guide plate 6. Then, since the guide plate 6 is pushed counterclockwise in the drawing, it rotates counterclockwise about the support shaft 13 as shown in FIG. If the pressing force on the cartridge 3 is released in this state, the slide plate 2 will try to return to the cartridge insertion slot 5 side, or the protrusion 1
0 comes into contact with the swinging end 6a, preventing movement in the same direction, and the slide plate 2 is in a locked state.

As a result, the upper surface of the guide plate 6 becomes parallel to the rotating surface of the turntable 4, and the cartridge 3 rotates counterclockwise in the figure due to the action of the leaf spring 7, so that the upper surface of the guide plate 6 becomes parallel to the rotating surface of the turntable 4, as shown in FIG. will be loaded into. At this time,
The car I ridge 3 is placed on a positioning pin 8, and is set so that the disk comes into sliding contact with a magnetic head (not shown).

Once loaded as above and recording or playback is finished,
The eject lever 14 is pulled up in a direction perpendicular to the plane of the drawing in FIG. 1, and the guide plate 6 is rotated in the seventh [9A direction (clockwise direction in the figure). Then, the cartridge 3 rotates slightly in the counterclockwise direction in the drawing and comes into contact with the upper edge of the curl/ridge insertion opening 5. When the guide plate 6 is further rotated, the cartridge 3 is rotated clockwise as shown in FIG. It will be canceled. When the lock is released, the slide plate 2 returns to the cartridge insertion slot 5 side due to the elastic force of the tension spring 12 as shown in FIG. It is ejected from the insertion port 5. At this time, the guide plate 6 has returned to the initial position shown in FIGS. 2 and 3, so that the cartridge 3 may come into contact with the magnetic head (not shown) and the turntable 4, obstructing the ejecting operation, or causing the magnetic head to It will not cause any damage.

In this embodiment, the guide plate 6 is used to lock the slide plate 2, but a similar lock can also be achieved by providing a locking member or the like that operates depending on the insertion position of the slide plate. It's okay. In addition, a protrusion 10 is formed at one end of the slide plate 2 in consideration of the inclination of the guide plate 6, the movement of the slide plate 2, the locking area at the time of locking, etc., but the operation is sufficient even without the provision of the protrusion 10. do. It goes without saying that various modifications can be made to these.

As described above, according to the above embodiment, (1) the number of parts can be reduced because a cartridge holder is not required, and (2) the disk drive device can be ■ By considering the placement position of the guide plate, the depth dimension can be kept small.■ By providing the guide plate with a slide plate locking function, the cartridge can be made thinner. The correlation between the insertion and ejection operations and the locking of the slide plate can be properly specified, ensuring reliable operation. ■ For the same reason as ■, no member is required for the locking means, which suppresses the increase in the number of parts. It has the following effects:

〔Effect of the invention〕

As described above, according to the present invention, which is configured to load and eject a cartridge using a guide plate, a slide plate, and a loading leaf spring, the number of parts can be reduced because a cartridge holder is not required. Therefore, it is possible to provide a low-cost disk drive device.

[Brief explanation of drawings]

1 to 10 are for explaining the present invention in detail, and FIG. 1 is a plan view of the main parts of a disk drive device according to this embodiment, FIG. 2, FIG. 3, FIG. Figures 5 and 6
7, 8, 9 and 10 are partial cross-sectional side views of main parts showing the operation of the disk drive device, and FIGS. 11 to 13 are for explaining the conventional example. FIG. 11 is a perspective view of a disk drive device according to a conventional example.
FIGS. 12 and 13 are partially sectional side views showing the operation. I... Frame body, 2... Slide plate, 3.
...(disc) cartridge, 4...
Turntable, 5... (disc) cartridge insertion slot, 6... Guide plate, 6a...
・Swinging end (locking means), 7...Temporary spring, 9.
...Contact portion, 12.15...Tension spring, 14...Eject lever. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 1 (J lb I, j gm Figure 9 Figure 10 Figure 11 Figure 12 Figure 13

Claims (1)

[Scope of Claims] A disc cartridge containing a disc-shaped information recording medium is introduced, and the information recording medium is loaded onto a turntable to record or reproduce information, or to record and reproduce information. , a slide plate that can freely reciprocate in a direction parallel to the disk cartridge insertion direction together with the disk cartridge; a biasing means that constantly biases the slide plate toward the disk cartridge insertion slot; The disc cartridge is tilted at an angle that at least avoids the turntable when the disc cartridge is inserted, and there is a swingable guide plate that retracts to at least the loading height of the disc cartridge during loading, and a slide plate that moves toward the disc cartridge insertion slot side during loading. A disk drive device comprising: a locking means for preventing movement; and a pressing means for pressing a disk cartridge toward a turntable.