JPH10143966A - Loading mechanism for both disk and caddy - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a loading mechanism to load both a disk unit body and a caddy. SOLUTION: In this loading mechanism equipped with a base unit 1, a tray 3 capable of inserting into and drawing out of this unit 1 and a chucking pulley 18 for holding a disk in the tray on a table of a pickup unit when the tray is inserted into the base unit, the tray even under the state of housing the caddy 4 is formed to be capable of inserting into and drawing out of the base unit. That is, means 7 and 13 for coping with the caddy is disposed in the base unit, and when the tray mounted with the caddy is inserted into the base unit, the means for coping with the caddy are engaged with the caddy, and they are moved from an advancing position to a retreating position to open a shutter 19 of the caddy so that the disk in the caddy is drivable. When the tray mounted with the disk unit body is further inserted into the base unit, the means for coping with the caddy are operated to hold the chucking pulley supported by these means in the advancing position to become coaxial with the disk unit body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk loading mechanism for a disk drive, and more particularly, to a dual-purpose mechanism capable of loading both a single disk and a caddy.

[0002]

2. Description of the Related Art In a known caddy loading mechanism, a caddy containing a disc is mounted on a tray, and the caddy is pulled in and loaded into a recording / reproducing position. In this method, the disc stored in the disc table and the caddy clamper of the pickup unit are lowered and driven to drive and record and reproduce.

On the other hand, a loading mechanism for a single disk is provided with a chucking pulley. When a tray on which a single disk is loaded is loaded to a recording / reproducing position, the pickup unit is raised and the table disk holds the disk together with the chucking pulley. It was a driving system.

[0004]

In the conventional caddy loading mechanism, a horizontal movement operation for pulling in and ejecting the caddy to and from the base unit and a mechanism for vertically moving the caddy to grip a disk are different. Therefore, there is a problem that the mechanism is complicated, the number of parts is large, and the manufacturing cost is high. Also, the disc itself could not be loaded.

The present invention has been made to solve these problems, and an object of the present invention is to provide a mechanism capable of loading both a caddy and a disk alone, and to reduce the manufacturing cost. Is to provide things.

[0006]

In order to achieve the above object, a means adopted by the present invention is that a tray can be inserted into and pulled out of a base unit in a front-rear direction regardless of whether a tray is mounted on a caddy or a disk alone. When the tray containing the caddy is inserted into the base unit in the front-rear direction, the caddy corresponding means carrying the chucking pulley is engaged with the caddy. The caddy shutter is opened while the caddy is moved from the forward position to the retracted position, and then the pickup unit is lifted up so as to grip and drive the disk with the disk table and the caddy clamper. However, when a single disk is mounted on the tray,
The caddy supporting means holds the forward position, and drives the disk by holding the disk with the chucking pulley and the disk table of the pickup unit, similarly to the conventional disk single-piece loading mechanism. This makes it possible to load both the disc and the caddy.

It is preferable that the tray is provided with means for positioning the caddy, preventing reverse loading and guiding the loading. The caddy support means includes a pulley plate that supports the chucking pulley in the base unit and reciprocates between a forward position and a backward position in a front-rear direction, a swing arm rotatably attached to the pulley plate, A spring for rotating the front end of the arm forward.

The pulley plate and the swing arm are arranged at a height which engages with the caddy but does not engage with the disc alone when the tray is inserted and pulled out. The tray is provided with a hitch pin, and the pulley plate is provided with a pin receiver for engaging the hitch pin. When the tray is pulled out, the pulley plate at the retracted position is driven by the hitch pin to the forward position.

The front end of the swing arm contacts the rear surface of the caddy, and as the tray is inserted, the swing arm is rotated rearward against the spring, and the front end of the swing arm slides on the rear surface of the caddy and opens the shutter. It is formed as follows. A stopper is provided on the pulley plate to move in and out in the left and right direction.Cam means is interposed between the swing arm and the stopper, and when the swing arm rotates forward, the stopper projects left and right from the pulley plate to the inner surface of the base unit. It is preferable that the pulley plate is stopped at the forward position by contact, and when the swing arm is rotated backward, the stopper is retracted into the pulley plate so that the pulley plate can be moved.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A caddy loading will be described as an embodiment of the present invention. As shown in FIGS. 1 and 2, the tray 3 is disposed on the base unit 1 so as to be able to be inserted and withdrawn in the front-rear direction. The caddy 4 is mounted on the tray 3 pulled out from the base unit 1. As shown in FIG. 5, the tray 3 is provided with the positioning pins 30 for positioning the caddy and the protrusions 31 for preventing the caddy from being reversely loaded, so that the caddy can be mounted on the tray 3 accurately. . Further, the ridges 32 for guiding and holding the caddy are provided on the inner surfaces on both the left and right sides of the tray 3, so that the caddy does not come off the tray 3 even when the apparatus is raised vertically.

As shown in FIGS. 1 and 2, the caddy 4 holds a disk 5 inside and a clamper 6 at the center of the upper surface. In the base unit 1, a caddy correspondence means is provided. The caddy-corresponding means includes a pulley plate 13 that can slide back and forth in the base unit 1 between a forward position and a backward position in a front-rear direction, a T-shaped swing arm 7 having a rear end pivotally mounted on the pulley plate, It comprises a spring 20 for rotating the swing arm forward, a cam means 8 and a stopper 11 similarly arranged on the pulley plate 13. The stopper 11 is composed of two right and left rods.

A chucking pulley 18 for holding a single disc on the table 9 of the pickup unit 2 is carried on a pulley plate 13. The cam means 8 has a slider 10 that slides back and forth on the pulley plate 13.
The slider 10 is provided with a cam groove 23 having a long hole shape in the front-rear direction and two cam grooves 16 having a long hole shape opening diagonally rearward in the left-right direction. The cam pins 15 of the pulley plate 13 fit into the cam grooves 23 in the front-rear direction, and the right and left cam pins 12 of the stopper 11 fit into the cam grooves 16 in the left-right oblique direction. Slider 10
Is the cam surface 21 of the swing arm 7 via the cam pin 14
And the slider 10 slides back and forth according to the rotation of the swing arm 7. The left and right cam pins 12 are fixed to the left and right rods of the stopper 11, and the stopper 11 enters and exits from the left and right side surfaces of the pulley plate 13 in accordance with the sliding of the slider 10 back and forth. When the swing arm 7 rotates forward by the spring 20, the hook 29 at the tip of the cam surface 21 advances the slider 10 via the cam pin 14, and when the swing arm 7 rotates rearward, the cam surface 21
Pushes the cam pin 14 to move the slider 10 backward.

A shutter 19 is provided on the rear surface 24 of the caddy 4, and when the shutter 19 is opened, the internal disk 5 can be driven. The front end 22 of the swing arm 7 is a roller, which rolls along the rear surface 24 of the caddy 5 and can open the shutter 19. When the pulley plate 13 is in the illustrated forward position, the swing arm 7
The front end 22 is pivoted forward by a spring 20, whereby the slider 10 also moves forward. As the slider 10 advances, the stopper 11 opens right and left, and the roller 26 attached to the tip thereof fits into the fitting recess 25 provided on the inner surface of the base unit 1, so that the pulley plate 13 stably stops at the advance position.

As shown in FIG. 2, the pulley plate 13 and the swing arm 7 in the base unit 1 are located at the same height as the upper half of the caddy 5. Pickup unit 2
And a table 9 thereon are provided in the base unit 1 so as to be able to move up and down. 3 and 4, when the tray 3 is inserted into the base unit 1, the caddy rear surface 24 comes into contact with the roller 22 at the front end of the swing arm 7, and the swing arm 7 is narrowed against the spring 20. Rotate backward as indicated by the arrow. The swing arm 7 that rotates backward moves the slider 10 backward through the cam pin 14, whereby the stopper 11 is pulled into the pulley plate 13, and the pulley plate 13 becomes movable.

During this time, the roller 22 at the front end of the swing arm 7 rolls along the rear surface 24 of the caddy 4, opens the shutter 19, and allows the internal disk 5 to be driven.
The posture of the caddy 4 is regulated by the caddy presser 17 provided on the base unit 1 on the upper surface. When the swing arm 7 rotates backward, the movable pulley plate 13 is pushed by the caddy 4 via the swing arm 7 and moves to the retracted position in FIGS. At this time, the chucking pulley 18 for the disk alone also moves to the back together with the pulley plate 13 and is separated from the caddy 4. Then, the pickup unit 2 goes up,
The disk in the caddy 4 is placed on the table 9.

Thereafter, when the tray 3 is pulled out from the base unit 1, the hitch pin 27 attached to the tray 3 pulls the pin receiver 28 of the pulley plate 13 to return the pulley plate 13 from the retracted position to the first forward position. At this time, since the spring 20 rotates the swing arm 7 forward to move the slider 10 forward, the roller 26 of the stopper 11 fits into the fitting recess 25. Then, the pulley plate maintains the forward position again. As described above, since the loading mechanism of the present invention only moves the caddy 4 in the horizontal direction, the structure is simple and the manufacturing is easy.

The method of isolating the chucking pulley can be achieved by sliding the pulley plate as shown in FIG.
Alternatively, a method of rotating the chucking pulley with an arm may be used.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As an embodiment of the present invention, loading of a single disk will be described. As shown in FIGS. 5 and 6, a single disk 5 is fitted into the tray 3 from which it has been pulled out. The upper surface of the single disk 5 is located lower than the pulley plate 13 and the roller 22 at the front end of the swing arm 7.

Next, the tray 3 is inserted into the base unit 1 as shown by a thick arrow in FIGS. At this time, since neither the tray 3 nor the disk unit 5 comes into contact with the roller 27 of the swing arm 7 and the pulley plate 13, the pulley plate 13 remains stopped at the retracted position. The tray 3 and the disk unit 5 pass under the pulley plate 13 and go to the back of the base unit 1. When the tray 3 is completely filled, the disk 5 and the chucking pulley 1
8 is coaxial. Then, when the pickup unit 2 is raised, the chucking pulley 18 moves the disk 5.
Are stored in the table 9.

When the tray 3 is pulled out, the pulley plate 13 remains stopped at the forward position, and the disk 5 is pulled out together with the tray 3 without contacting the pulley plate 13.

[0021]

The caddy loading mechanism of the present invention is different from the conventional caddy moving method in which the caddy is moved in two directions of horizontal and vertical, and the caddy is moved only with the tray only in the horizontal direction, and the disk table is raised and lowered. In addition, since the disk in the caddy is also held in the same manner as the disk alone, the number of parts is reduced, and an excellent effect that the manufacturing cost can be greatly reduced is exhibited. Also,
The mechanism of the present invention has an effect which can be loaded on any caddy of a single disk, which is not available in the related art. Further, in the case of mounting a caddy, a special effect that the height of the entire loading mechanism is reduced due to the elimination of the vertical movement of the tray, and the height of the entire apparatus is also reduced because the pulley plate is moved.

[Brief description of the drawings]

FIG. 1 is a plan view of a loading mechanism of the present invention equipped with a caddy, and shows a state where a tray is pulled out.

FIG. 2 is a sectional view of the loading mechanism of FIG. 1,

FIG. 3 is a plan view of the loading mechanism of FIG. 1, showing a state where a tray is inserted.

4 is a sectional view of FIG. 3,

FIG. 5 is a plan view of the loading mechanism of the present invention on which a single disk is mounted, and shows a state where a tray is pulled out.

6 is a sectional view of FIG. 5,

FIG. 7 is a plan view of the loading mechanism of FIG. 5, showing a state where a tray is inserted.

8 is a sectional view of FIG. 7,

[Explanation of symbols]

1: Base unit, 2: Pickup unit, 3:
Tray: 4: caddy, 5: disk, 6: clamper, 7: swing arm, 8: cam means, 9: disk table, 10: slider, 11: stopper, 1
2: cam pin, 13: pulley plate, 14: cam pin, 15: cam pin, 16: cam groove, 17: caddy holder, 18: chucking pulley, 19: shutter, 2
0: spring 21: cam surface, 22: front end (roller),
23: cam groove, 24: rear surface, 25: fitting recess, 26: roller, 27: hitch pin, 28: pin receiver, 29: hook, 30: positioning pin, 31: projection, 32: ridge

Claims (8)

[Claims] 1. A base unit (1), a tray (3) that can be inserted into and pulled out of the base unit in a front-rear direction with a single disk (5) housed therein, and the tray is inserted into the base unit. A chucking pulley (18) for holding the disc alone in the tray on the table (9) of the pickup unit (2)
Wherein the tray (3) is formed so as to be able to be inserted into and pulled out from the base unit even in a state in which the caddy (4) is housed therein, and supports the chucking pulley in the base unit; And caddy handling means (7, 13) that can reciprocate between forward and backward positions in the front-rear direction, and when the tray containing the caddy is inserted into the base unit, the caddy handling means. Is moved by the caddy from the forward position to the retracted position together with the chucking pulley (18), and opens the shutter (19) of the caddy to drive the disk in the caddy, Means for moving the tray from the retracted position to the advanced position when the tray is withdrawn; Entrained, when the tray containing the disc itself inside is inserted into the base unit, the caddy corresponding means disk caddy dual loading mechanism, characterized in that to hold the forward position. 2. A caddy supporting means, comprising: a pulley plate (13) disposed reciprocally movable between an advanced position and a retracted position in the base unit (1); Swing arm (7)
A spring (20) for rotating the front end (22) of the swing arm (7) forward, a stopper (11) for holding the forward position of the pulley plate, and a cam means (8) for driving the stopper. When the tray (3) containing the caddy (4) is inserted, the front end (22) of the swing arm is pushed by the caddy, and the pulley plate moves from the advanced position to the retracted position. At the same time, the swing arm pivots against the spring, and its front end (22) slides along the rear surface of the caddy to open a shutter (19) on the rear surface of the caddy. Item 2. A disk and caddy loading mechanism according to Item 1. 3. The stopper (11) is a right and left rod provided on the pulley plate (13) and extending in and out of the left and right direction to be attached to and detached from the inner surface of the base unit (1). (13) A slider (10) slidably provided in the front-rear direction, and the slider is provided with a swing arm (7) and a stopper (11).
3. A disc and caddy loading mechanism according to claim 2, further comprising a cam member which is engaged with said cam so that said stopper moves right and left from said pulley plate by rotation of said swing arm. . 4. A cam pin (14) implanted on a slider (10) and engaging with a cam surface (21) and a hook (29) of a swing arm (7), and a slider (1).
4. A disk according to claim 3, further comprising: a cam groove (16) provided on the left and right, which opens obliquely rearward, and a cam pin (12) implanted in a stopper (11) and fitted in said cam groove. Caddy dual use loading mechanism. 5. A roller (2) is attached to the outer end of the stopper (11).
6), wherein a fitting recess (25) into which the roller (26) fits when the tray (3) is pulled out is provided on the inner surface of the base unit (1). Item 6. A disk and caddy loading mechanism according to Item 4. 6. A tray (3) is provided with a hitch pin (27), and a pulley plate (13) is formed with a pin receiver (28) for engaging with the hitch pin. When the tray is pulled out, the hitch pin and the pin are formed. 3. The loading mechanism according to claim 2, wherein a catch engages to drive the pulley plate from the retracted position to the advanced position. 7. The disk as claimed in claim 1, wherein the tray has a positioning pin for determining the position of the caddy and a projection for preventing reverse loading. Caddy dual use loading mechanism. 8. The disc and caddy loading mechanism according to claim 1, wherein the tray (3) is formed with a ridge (32) for guiding the caddy (4) on both left and right inner surfaces.