JPH07287912A - Medium carrying device - Google Patents

Abstract

PURPOSE:To prevent a failure due to impact upon a carriage supporting shaft at the time of inserting a cartridge by elastically energizing carriage, which is moved into a reproducing position by a moving plate, in the direction opposite to the inserting direction at the time of inserting the cartridge. CONSTITUTION:When the cartridge 1 is inserted into the carriage 2 beyond its limitation at the time of inserting the cartridge, an arm 14 on a side panel 8 is pressed and oscillated by a roller 12 borne by a supporting shaft 11 of the carriage 2, and the carriage 2 is energized in the opposite direction by elastic force of a spring 16. Consequently, the occurrence of a failure due to impact upon the carriage supporting shaft 11 at the time of inserting the cartridge 1 is prevented. Moreover, by electrically moving a moving plate 2 equipped with a following cam groove, the cartridge 1 is moved via a roller 3 into a reproducing position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medium (eg, magneto-optical disk) conveying mechanism of an information recording / reproducing apparatus (eg, magneto-optical disk device).

[0002]

2. Description of the Related Art As an example of a conventional device of this type, a magneto-optical disk transport mechanism of a magneto-optical disk device will be described. FIG. 4 is a diagram showing a magneto-optical disk transport mechanism of a conventional magneto-optical disk device. This carrying mechanism is, for example, a carrying mechanism of a magneto-optical disk device used for an autochanger, and has a function of carrying the magneto-optical disk only in a direction perpendicular to the recording surface. The magneto-optical disk is contained in the cartridge 1. FIG. 4 is a perspective view in which the carriage 2 is at a position where the cartridge 1 is inserted. The right side from the cartridge insertion side is disassembled to make the structure easier to see.

First, the structure of FIG. 4 will be described. Motor 3
The worm 4 is fixed to the rotating shaft of the. The worm 4 meshes with a worm wheel 6 fixed to the pinion shaft 5. Pinion gears 7 are fixed to both ends of the pinion shaft 5. The pinion shaft 5 is rotatably held by a pair of left and right side plates 108 by bearings (not shown). Inside the pair of left and right side plates 108, a pair of left and right moving side plates 109 are movably held by the side plates 108 in the arrow direction (= insertion direction) and the opposite direction by a holding member (not shown). Left and right moving side plates 1
The rack 10 is fixed to the position 09 so as to mesh with the pinion gear 7. A roller shaft 11 is fixed to a carriage 2 that receives the cartridge 1 at a total of four positions on the left, right, front, and rear. A roller 12 and a roller 13 are rotatably attached to the roller shaft 11. Side plate 10
8 is provided with a cam hole in the direction in which the carriage 2 is conveyed in a portion where the roller 12 is engaged. Moving side plate 10
As shown in FIG. 4, an oblique cam hole is formed in a portion of the roller 9 in which the roller 13 is engaged. The left and right side plates 108
Is fixed to the apparatus main body by means not shown.

Next, the operation of the apparatus shown in FIG. 4 will be described. When the motor 3 is driven to rotate the pinion shaft 5 in the clockwise direction as viewed from the right side surface, the moving side plate 109 is moved by the rack 10 in the direction of the arrow in FIG. 4 (insertion direction). Since the moving side plate 109 is provided with an oblique cam hole in the direction shown in the figure, the movement of the moving side plate 109 causes the roller shaft 11 to move downward. When the roller shaft 11 reaches the lower end of the cam hole of the side plate 108 (that is, the recording / reproducing position), the driving is stopped by a limit detector (not shown).

[0005]

However, in such a conventional medium carrying mechanism, when the cartridge 1 is inserted above the limit 2a of the carriage 2, the roller shaft 11 of the carriage 2 and the cam of the side plate 108 are inserted. Since the hole hits, the impact is received by the roller shaft 11 of the carriage 2, which causes a failure.

[0006]

[Means for Solving the Problems] In order to solve the above problems,
According to the present invention, a carriage into which a medium is inserted, a support shaft fixed to the carriage, a moving side plate that moves the carriage to move the medium from an insertable position to a recordable / reproducible position, and the support shaft A side plate having a cam hole or a cam groove formed so that the support shaft is movable in the medium insertion direction when the carriage is in the insertion position, and the movable side plate. Is configured to include a drive unit that moves in a direction opposite to the medium insertion direction, and an elastic member that biases the support shaft in a direction opposite to the medium insertion direction.

[0007]

According to the present invention, when the medium is inserted beyond the limit of the carriage when the medium is inserted, the support shaft of the carriage is
Since it is elastically received in the insertion direction and does not generate a large impact, it does not break down.

[0008]

Embodiments of the present invention will be described with reference to FIGS. 1, 2 and 3. FIG. 1 is a diagram showing a magneto-optical disk transport mechanism of a magneto-optical disk device according to an embodiment of the present invention. This carrying mechanism is, for example, a carrying mechanism of a magneto-optical disk device used for an autochanger, and has a function of carrying the magneto-optical disk only in a direction perpendicular to the recording surface. The magneto-optical disk is contained in the cartridge 1. FIG. 1 is a perspective view of the carriage 2 at a position where the cartridge 1 is inserted. The right side from the cartridge insertion side is disassembled to make the structure easier to see.

First, the structure of FIG. 1 will be described. The worm 4 is fixed to the rotation shaft of the motor 3. The worm 4 is a worm wheel 6 fixed to the pinion shaft 5.
Is meshing with. Pinion gears 7 are fixed to both ends of the pinion shaft 5. The pinion shaft 5 is rotatably held by a pair of left and right side plates 8 by bearings (not shown). Inside the pair of left and right side plates 8, a pair of left and right moving side plates 9 are held by the side plates 8 by a holding member (not shown) so as to be movable in the arrow direction (= insertion direction) and the opposite direction. The rack 1 is provided on the pair of left and right moving side plates 9.
0 is fixed at a position where it meshes with the pinion gear 7.
A roller shaft 11 is fixed to a carriage 2 that receives the cartridge 1 at a total of four positions on the left, right, front, and rear. A roller 12 and a roller 13 are rotatably attached to the roller shaft 11. A cam hole is formed in a portion of the side plate 8 where the roller 12 is engaged so that the roller can be moved in the insertion direction at the carriage carrying direction and the cartridge insertable position (upper end) so that the L shape is turned upside down. There is. As shown in FIG. 1, an oblique cam hole is formed in a portion of the moving side plate 9 with which the roller 13 is engaged. The left and right side plates 8 are fixed to the apparatus body by means not shown.

Next, the operation of the embodiment (FIG. 1) will be described.
When the motor 3 is driven and the pinion shaft 5 is rotated counterclockwise when viewed from the right side, the rack 10 causes
The moving side plate 9 moves in the direction opposite to the direction of the arrow in FIG. 1 (direction opposite to the inserting direction). Since the moving side plate 9 is provided with an oblique cam hole in the direction as shown in the figure, the movement of the moving side plate 9 causes the roller shaft 11 to be pushed back in the direction opposite to the insertion direction and then downward. Can be moved. When the roller shaft 11 reaches the lower end of the cam hole of the side plate 8 (that is, the recording / reproducing position), the driving is stopped by a limit detector (not shown).

FIG. 2 is a view of the apparatus shown in FIG. 1 as viewed from the right side plate 8 side. The lever 14 is attached rotatably around a lever shaft 15. A tension coil spring 16 is attached to the tip of the lever 14. The tension coil spring 16 is at a position where the tension coil spring 16 is in a slightly extended state, and the other end of the tension coil spring 16 is fixed to the side plate 8.
It is attached to 7. The limiting pin 18 is fixed to the side plate 8 and limits the rotation of the lever 14.

FIG. 2 shows a state in which the carriage 2 is at a position where the cartridge 1 can be inserted. In this state, if the cartridge 1 is put into the carriage 2 beyond the limit 2a, the roller 12 pushes the lever 14 in the insertion direction (to the right in FIG. 2) and the tension spring 16 extends, so that the roller 12 receives it elastically. be able to. Therefore, the roller shaft 11 does not break down.

FIG. 3 is a view showing a state immediately after the cartridge 1 is put into the carriage 2 at the limit 2a or more.
As shown in FIG. 3, the roller 12 is inserted in the insertion direction (in FIG. 3,
Moving to the right). From this state, the carriage 2 is conveyed downward (recordable / reproducible position).
In the present embodiment, the moving side plate 9 is provided with a cam hole having an inclination as shown in the figure, and the moving side plate 9 is moved by moving it in the direction opposite to the insertion direction for conveyance. This way,
At the hypotenuse of the cam hole, first roll the roller 1 in the direction opposite to the insertion direction.
After pushing back 2, it will move downward. what if,
When the moving side plate 9 is moved in the inserting direction with the cam hole of the moving side plate 9 having a hypotenuse in the direction opposite to that of FIG. It creates new problems.

In FIG. 1, the lever mechanism as shown in FIG. 2 is provided on the roller shaft 11 on the far side with respect to the insertion direction, but it goes without saying that the same effect can be obtained even if it is provided on the front side. Yes. It may be provided on both the front side and the back side. Further, although the lever mechanism is provided outside the side plate 8 in FIG. 1, the same effect can be obtained by providing the lever mechanism inside the side plate 8.

The shape of the cam hole and the lever 14 is not limited to the shape shown in the embodiment, and the same effect can be obtained if the roller 12 is elastically movable in the inserting direction.

[0016]

As described above, according to the present invention, the support shaft of the carriage is elastically received in the inserting direction even when the medium is inserted beyond the limit of the carriage when the medium is inserted.
Since it does not generate a large shock, it never fails.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a medium carrying device according to an embodiment of the present invention.

FIG. 2 is a side view of the lever mechanism portion of FIG. 1 of the medium carrying device according to the embodiment of the present invention.

FIG. 3 is a side view of the lever mechanism portion of FIG. 1 of the medium carrying device according to the embodiment of the present invention.

FIG. 4 is a diagram showing a configuration of a conventional medium transport device.

[Explanation of symbols]

 1 Cartridge 2 Carriage 3 Motor 4 Worm 5 Pinion Shaft 6 Worm Wheel 7 Pinion Gear 8 Side Plate 9 Moving Side Plate 10 Rack 11 Roller Shaft 12, 13 Roller 14 Lever 15 Lever Shaft 16 Coil Spring

Claims (1)

[Claims] 1. A carriage into which a medium is inserted, a support shaft fixed to the carriage, a moving side plate for moving the carriage to move the medium from an insertable position to a recordable / reproducible position, and the support. A side plate having a cam hole or a cam groove formed so as to limit the movement direction of the shaft so that the support shaft can move in the insertion direction of the medium when the carriage is at the insertable position; A medium transporting device, comprising: a drive unit that moves the side plate in a direction opposite to the medium insertion direction; and an elastic member that biases the support shaft in a direction opposite to the medium insertion direction. apparatus.