JPH07153165A - Loading device - Google Patents

Abstract

PURPOSE:To miniaturize a device without losing the reliability by supporting a guide pin with an elastic means and also pressing the guide pin in the direction opposite to the advancing direction when the guide pin is entered into a 2nd groove of guide grooves. CONSTITUTION:A guide holding member 11, an elastic member 10 consisting of a twist spring 12, and a stopper 13 are provided in a transporting mechanism of the loading device. The holding member 11 consists of, e.g. a planar spring, and the one end is fitted to a guide plate 3 by a locking pin 11 a and the another end is arranged along the horizontal part 3b beyond a terminal wall 3d of the horizontal part 3b, at the lower side of the horizontal part 3b of the guide groove 3a. In the loading device, the guide pin 1a which is engaged with an inclined slot provided on a moving plate by the movement of the moving side plate to the direction X, is moved along the horizontal part 3b of the guide groove 3a. The pin 1a is pressed in the direction of the vertical part 3c by the inclined surface of the slot 2a and advanced into the vertical part 3c while pressing the member 11 and the spring downward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loading device for mounting a disc containing an information recording medium at a predetermined recording operation position.

[0002]

2. Description of the Related Art FIG. 3A is a schematic perspective view of a transfer mechanism provided in a conventional general loading device, and FIG. 3B is a schematic exploded perspective view of the transfer mechanism. Figure 3
As shown in (A) and (B), the transport mechanism of the conventional loading device is mainly composed of a disc holder 1, a moving side plate 2, and a guide plate 3, and a guide pin provided on the disc holder 1 Reference numeral 1 is engaged with an inclined long hole 2a provided in the moving side plate 2 and a guide groove 3a provided in the guide plate 3.

The disc holder 1 holds, in the disc holder 1, a disc cartridge (not shown) having an information recording medium housed therein which is inserted in the direction of arrow X shown in the figure.

The moving side plate 2 is provided with a rack (not shown), and meshes with a pinion connected to a drive mechanism such as a motor to insert the disc cartridge (in the direction of arrow X). It is possible to move to.

The guide plate 3 is fixed to a housing (not shown) of the loading device, and the guide groove 3a of the guide plate 3 extends in the horizontal direction (direction of arrow X). Horizontal portion 3b (first groove) and end wall 3d of the horizontal portion 3b
Is a groove integrally formed with a vertical portion 3c (second groove) extending in the vertical direction.

In the conventional transporting mechanism of the loading device constructed as described above, the moving side plate 2 is moved in the direction of arrow X by the driving of the driving mechanism including the above-mentioned motor, and the moving side plate is accompanied by this. The guide pin 1a of the disc holder 1 engaged with the two elongated holes 2a moves along the guide groove 3a (horizontal portion 3b, vertical 3c) of the guide plate 3. As a result, the disc holder 1 carries the disc cartridge containing the information recording medium to a predetermined recording / reproducing operation position.

FIG. 4 is a schematic sectional view showing an internal state of a conventional general loading device, and FIG. 4A is an explanatory view showing a state before the inserted disk cartridge is mounted in the recording / reproducing mechanism. Yes, (B) is an explanatory view showing a state after the disk cartridge is mounted in the recording / reproducing mechanism. The transport mechanism shown in FIGS. 3A and 3B is omitted. Further, the arrow X shown in the drawing is the insertion direction of the disc cartridge 6.

As shown in FIGS. 4A and 4B, the conventional loading device is mainly composed of a spindle motor 4 and an alignment pin 5. An information recording medium 7 and a hub 7a are housed in the disc cartridge 6 inserted into the conventional loading device. An alignment hole 6a that engages with the alignment pin 5 is formed at the front end of the disc cartridge 6 in the insertion direction. That is, the alignment pin 5
Positions the inserted disk cartridge 6 in the loading device.

Above the spindle motor 4,
A hub 7a housed in the disk cartridge 6 is provided with a boss 4a that fits into a hole 7b. There is. Further, the tip end of the alignment pin 5 is also chamfered so as to easily engage with the alignment hole 6a formed in the disc cartridge 6.

In the conventional loading device configured as described above, the disc cartridge 6 is mounted at a predetermined recording / reproducing operation position by driving the transport mechanism described in FIGS. 3 (A) and 3 (B). . That is, FIG.
As shown in (B), the alignment pin 5 is engaged with the alignment hole 6 a of the disc cartridge 6, and the hub 7 housed in the disc cartridge 6 is engaged.
The hole 7b of the a is formed in the boss 4a of the spindle motor 4.
Is attached to.

In the conventional loading device described above, in order to mount the disc cartridge 6 on the spindle motor 4, as shown in FIG. 4 (A), the disc cartridge 6 is inserted into the loading device. Margin (amount of play) L (the disc cartridge 6 is manually inserted, so if there is no margin, it becomes difficult to insert).
Vertical amount M for positioning the disc cartridge 6 with respect to the alignment pin 5 and vertical amount N for positioning the information recording medium 7 housed in the disc cartridge 6 with respect to the spindle motor 4, respectively. The quantity is required by design. (Without each vertical amount, the reliability of the loading device would be significantly reduced.)

[0012]

However, in the above-mentioned conventional loading device, as shown in FIGS.
In the guide groove 3a of the guide plate 3, the center point of the guide pin 1a shown in FIG.

That is, as shown in FIG. 5, the center point Q of the guide pin 1a engaged with the elongated hole 2a of the moving side plate 2 is the same as the center point Q of the guide groove 3a when moving from the horizontal portion 3b to the vertical portion 3c. In the corner portion K between the horizontal portion 3b and the vertical portion 3b, the corner portion K
Draw a locus of the radius r of the guide pin 1a centered at

That is, since the guide pin 1a passes over the corner K when shifting from the horizontal movement in the horizontal portion 3b to the vertical movement in the vertical portion 3c, the center point Q of the guide pin 1a is passed. The locus is this guide pin 1
Draw a trajectory of radius a of a.

As a result, when designing the loading device, in addition to the vertical amounts of L, M, and N described in FIG. 5A, the trajectory amount R of the radius r of the guide pin 1a shown in FIG. 6 is obtained. In addition, it has to be designed, which has been a problem that hinders the miniaturization of the device.

It is also conceivable to reduce the diameter of the guide pin 1a and the locus amount R of the radius r, but this cannot be infinitely reduced, and the problem of obstructing the miniaturization of the device is solved. I couldn't.

The present invention has been made in view of the above problems, and an object of the present invention is to obtain a compact loading device without losing the reliability of the device.

[0018]

In order to achieve the above object, a loading device according to the present invention includes a disk holder with a guide pin for holding an information recording disk inserted into an insertion opening of a housing, and the guide pin. A movable side plate having an engaging long hole and moving in the disc insertion direction, a first groove extending in the disc insertion direction, and a predetermined recording / reproducing operation position direction from the end of the first groove A guide plate having a guide groove consisting of a second groove extending to the guide groove, the guide pin being supported until the guide pin comes into contact with an end wall of the first groove of the guide groove. In addition, when the guide pin enters the second groove of the guide groove, an elastic means for urging the guide pin in a direction opposite to the entering direction of the guide pin is provided. It is.

[0019]

The loading device according to the present invention mainly comprises a disk holder with guide pins, a moving side plate, a guide plate, and elastic means.

The disk holder with guide pins holds the information recording disk inserted in the insertion opening of the housing.
The moving side plate has an elongated hole that engages with the guide pin, and moves in the disc insertion direction. The guide plate has a guide groove formed of a first groove extending in the disc insertion direction and a second groove extending from the end of the first groove in a predetermined recording / reproducing operation position direction. Have.

Further, the elastic means supports the guide pin until the guide pin comes into contact with the end wall of the first groove of the guide groove, and the guide pin has the second groove of the guide groove. The guide pin is urged in the direction opposite to the guide pin entering direction.

That is, by guiding the guide pin along the guide groove of the guide plate by the movement of the movable side plate, when the disc holder is conveyed to a predetermined recording / reproducing operation position, the guide pin is By the elastic means, the guide groove is supported until it comes into contact with the end wall of the first groove, and when the guide pin enters the second groove of the guide groove, The guide pin is biased in the direction opposite to the approaching direction of the guide pin.

Therefore, when the guide pin moves from the first groove to the second groove, the locus of the guide pin becomes a substantially linear locus, so that the reliability of the apparatus is not lost. The size of the device can be reduced.

[0024]

FIG. 1 is a schematic side view showing a part of a carrying mechanism of a loading device according to an embodiment of the present invention. Figure 1
As shown in FIG. 3, the transport mechanism of the loading device according to the present embodiment is provided with the guide pin holding member 11, the elastic member 10 including the torsion spring 12, and the stopper 13. The same parts as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted.

The guide pin holding member 11 is composed of, for example, a plate-shaped spring, one end of which is locked to the guide plate 3 by the locking pin 11a and the other end of which is horizontal below the horizontal portion 3b of the guide groove 3a. It is provided along the horizontal portion 3b beyond the end wall 3d of the portion 3b.

Further, the torsion spring 12 has the locking pin 11a inside the guide pin holding member 11.
Is locked to the guide plate 3 by one end and abuts on the guide pin holding member 11 to urge the guide pin holding member 11 upward. Therefore, the other end of the guide pin holding member 11 is restricted by the stopper 13. The other end of the torsion spring 12 is regulated by another stopper 13 provided on the guide plate 3.

The loading device according to the present embodiment having the above-described structure is, as described in the conventional example, moved by the moving side plate (not shown) (moved in the arrow X direction).
The guide pin 1a engaged with the slanted long hole 2a provided in the moving side plate moves along the horizontal portion 3b of the guide groove 3a.

Here, the guide pin support member 11 is
The guide pin 1a moving along the horizontal portion 3b of the guide groove 3a is connected to the end wall 3d of the horizontal portion 3b of the guide groove 3a.
Support until it touches. The support force F of the guide pin support member 11 is preset so as to have a holding force that is about the same as or greater than the weight of the combined weight of the disc cartridge and the disc holder (not shown). .

Thereafter, the moving side plate (not shown) further moves in the direction of the arrow X, whereby the guide pin 1a
Is urged toward the vertical portion 3c of the guide groove 3a by the inclined surface of the long hole 2a provided in the moving side plate, and while urging the guide pin support member 11 and the torsion spring 12 downward, Enter into 3c.

Therefore, the locus of the center point Q of the guide pin 1a becomes a substantially linear locus, and the locus amount R (see FIG. 6) of the radius r of the guide pin 1a which has been generated conventionally disappears.
It makes it possible to design and manufacture small devices.

In this embodiment, the elastic member 1 is used.
0 is configured by a combination of the guide pin support member 11 and the torsion spring 12, but it is suitable by a combination of the guide pin support member 11 and a compression coil spring, a combination of the guide pin support member 11 and a tension coil spring, or the like. You can make a statement.

FIG. 2 is a schematic side view showing a part of the transport mechanism of the loading device according to the second embodiment of the present invention. The difference from the above-described first embodiment is that the elastic member 10 shown in the first embodiment is combined to a single elastic member 10a, and one end thereof is used as a guide plate (not shown) by a screw 14. It is at the locked point. Other than this, since it is similar to the first embodiment,
The same parts are designated by the same reference numerals and the description thereof will be omitted.

As described above, by using the elastic member 10a alone, the cost can be reduced and the mounting on the loading device becomes easy.

In the first and second embodiments described above, the insertion direction of the disc cartridge is described as the horizontal direction (direction of arrow X), but the present invention is also applicable to a loading device for inserting the disc cartridge in the vertical direction, for example. Can be similarly applied.

Further, when a disk cartridge (not shown) conveyed to a predetermined recording / reproducing operation position is taken out from the apparatus, conventionally, the gravity of the disk cartridge and the disk holder, etc. bears on a driving mechanism such as a motor. However, in both the first and second embodiments, even when the guide pin 1a comes into contact with the end wall 3e of the vertical portion 3c of the guide groove 3a, the elastic member 1
Since 0 and 10a urge the guide pin 1a upward, it is possible to reduce the load applied to the drive mechanism and to smoothly take out the disc cartridge.

[0036]

As described above, according to the present invention, since the guide pin provided on the disk holder moves from the first groove to the second groove, the elastic means is provided.
Since the trajectory of the guide pin is a substantially linear trajectory,
There is an effect that the device can be easily downsized without losing the reliability of the device.

Further, since the elastic means always urges the guide pin in a direction opposite to the guide pin entering direction when the guide pin is entering the second groove, There is also an effect that the gravity of the information recording disk or the like reduces the load on the drive mechanism composed of, for example, a motor, so that the operation of taking out the information recording disk from the apparatus can be made smooth.

[Brief description of drawings]

FIG. 1 is a schematic side view showing a part of a carrying mechanism of a loading device according to an embodiment of the present invention.

FIG. 2 is a schematic side view showing a part of a carrying mechanism of a loading device according to a second embodiment of the present invention.

FIG. 3A is a schematic perspective view of a transfer mechanism provided in a conventional general loading device, and FIG. 3B is a schematic exploded perspective view of the transfer mechanism.

FIG. 4 is a schematic cross-sectional view showing an internal state of a conventional general loading device, FIG. 4A is an explanatory view showing a state before the inserted disk cartridge is mounted in a recording / reproducing mechanism, and FIG. FIG. 6 is an explanatory view showing a state after the disc cartridge is mounted on the recording / reproducing mechanism.

FIG. 5 is an explanatory diagram showing a conventional problem.

FIG. 6 is an explanatory diagram showing a conventional problem.

[Explanation of symbols]

 1: Disc holder 1a: Guide pin 2: Moving side plate 2a: Long hole 3: Guide plate 3a: Guide groove 3b: Horizontal part 3c: Vertical part 3d: Horizontal end wall 3e: Vertical end wall 4: Spindle motor 4a: Boss 5: Alignment pin 6: Disc cartridge 6a: Alignment hole 7: Information recording medium 7a: Hub 7b: Hub hole 10, 10a: Elastic member 11: Guide pin support member 11a: Locking pin 12: Torsion spring 13: Screw

Claims (1)

[Claims] 1. A disc holder with a guide pin for holding an information recording disc inserted in an insertion opening of a housing, and a movable side plate having an elongated hole for engaging with the guide pin and moving in the disc insertion direction. A guide plate having a guide groove including a first groove extending in the disc insertion direction and a second groove extending from the end of the first groove in a predetermined recording / reproducing operation position direction. In the loading device, the guide pin is supported until the guide pin comes into contact with the end wall of the first groove of the guide groove, and when the guide pin enters the second groove of the guide groove. Is a loading device comprising elastic means for urging the guide pin in a direction opposite to the direction in which the guide pin enters.