JPH0541018A - Disk loader - Google Patents

Abstract

PURPOSE:To securely prevent a lock arm from turning in its unlocking direction by engaging an engaged part provided to the lock arm with an engaging part of a tray supporting plate during movement of a tray. CONSTITUTION:The engaged part 8 is formed at one end part of the lock arm 4 by fitting freely rotatably a rotary roller 82 to a shaft 81. Then, the tray supporting plate 5 supporting movably the cartridge tray is provided with the engaging part 9 for engaging the engaged part 8 during the movement of the cartridge tray and preventing the lock arm 4 from turning in the unlocking direction. When the cartridge tray is started to move, the engaged part 8 is engaged with the engaging part 9, and during the horizontal movement of the tray, a roller 82 is engaged with a horizontally engaging part 91, and when the tray is moved vertically, a vertically engaging part 92 is engaged, thus preventing turning in unlocking directions respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk loading device used in a disk player, and more particularly, to locking (catch) a disk cartridge to a cartridge tray by a lock arm during loading.
This is to ensure that the disengagement can be prevented.

[0002]

2. Description of the Related Art FIG. 8 shows a disk loading device.
The ones shown in are known.

When the disc cartridge 201 is inserted into the cartridge tray 203 from the cartridge insertion port 202, this disc loading device is provided at the far end sides of the left and right sides of the cartridge tray 203 (opposite the cartridge insertion port 202). The lock arm (catch arm) 204 is rotated, and the lock roller (catch roller) 205 of the lock arm 204 is provided with recesses 2 provided on both left and right sides of the upper surface of the disc cartridge 201.
The disc cartridge 201 is locked (caught) in a state in which it is positioned in the cartridge tray 203.

When the disk cartridge 201 is locked in the cartridge tray 203 by the rotation of the lock arm 204, a motor (not shown) for driving the cartridge tray is turned on and the pinion 20.
The rack 2 in which 7 rotates and the pinion 207 meshes with it.
Cartridge tray drive operation plate (cam plate) provided with 08
209 slides and the inclined cam grooves 210, 210 provided on the operation plate 209 are used to move the cartridge tray 20.
The support pins 211 and 211 provided on the side surface of the cartridge 3 are slid along the guide grooves 214 and 214 provided on the pair of left and right cartridge tray support plates 213 and 213 that are erected on the chassis 212.
03 is moved to carry the disc cartridge 201 accommodated in the cartridge tray 203 from the disc unloading position to the disc loading position.

The lock arm 204 is given a turning force by a coil spring 215, and the spring force of the coil spring 215 causes the lock roller 205 to fit into a recess 206 provided on the upper surface of the disk cartridge 203. Is becoming

[0006]

In the conventional disc loading device, as described above, the lock arm 2 is simply driven by the spring force of the coil spring 215.
04 lock roller 205 to disk cartridge 20
Since the disc cartridge 201 is kept locked by being fitted into the concave portion 206 provided on the upper surface of No. 1, there is the following problem.

(1) The lock arm 204 may rotate in the unlocking direction against the spring force of the coil spring 215 due to some reason during loading, and the disc by the lock arm 204 may be rotated during loading. The lock of the cartridge 201 may be released.

(2) When the lock of the disk cartridge 201 by the lock arm 204 is released, the disk cartridge 201 moves within the cartridge tray 203.
In some cases, the position of the hub of the disk in the disk cartridge 201 and the position of the turntable on the chassis are displaced, and the disk cannot be properly placed on the turntable.

According to the present invention, by preventing the lock arm from rotating in the unlocking direction during loading, it is possible to reliably prevent the above-mentioned conventional problems from occurring. ..

[0010]

DISCLOSURE OF THE INVENTION A cartridge tray into which a disc cartridge is inserted, and a disc cartridge which is rotatably provided on the cartridge tray and is fitted into a recess provided in the inserted disc cartridge, A lock arm that locks the cartridge tray in the cartridge tray, a cartridge tray support plate that movably supports the cartridge tray between a disc unloading position and a disc loading position, and a chassis provided with the cartridge tray support plate, In a disk loading device including a cartridge tray drive operation plate that moves the cartridge tray along the cartridge tray support plate, the lock arm includes:
When the cartridge tray is moved from the disc unloading position to the disc loading position, an engaged portion that engages with an engaging portion provided on the cartridge tray supporting plate or the chassis is provided, and the cartridge tray supporting plate or The chassis is provided with an engaging portion that engages with the engaged portion and prevents the lock arm from rotating in the unlocking direction when the cartridge tray moves.

[0011]

When the disc cartridge is inserted into the cartridge tray, the disc cartridge is locked by the lock arm.

When the cartridge tray starts to move, the engaged portion provided on the lock arm engages with the engaging portion provided on the cartridge tray support plate or the chassis, and the engaging portion causes the lock arm to move. The cartridge tray moves to the disc loading position while being prevented from rotating in the unlocking direction.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to FIGS.

Reference numeral 1 is a disc loading device of the present invention. The disc loading device 1 is a cartridge tray 3 into which a disc cartridge 2 is inserted, and a disc cartridge which is rotatably attached to the cartridge tray 3 and is inserted. The recessed part 2 provided in 2
8 and a pair of left and right lock arms (catch arms) 4 and 4 for locking (catching) the disc cartridge 2 in the cartridge tray 3, and the cartridge tray 3 between the disc unloading position and the loading position. A pair of left and right cartridge tray support plates 5 and 5 movably supported, a chassis 6 provided with the cartridge tray support plates 5 and 5, and the cartridge tray 3 is moved along the cartridge tray support plates 5 and 5. The cartridge tray drive operation plate 7 is provided.

When the cartridge tray 3 is moved from the disc unloading position to the disc loading position, the lock arms 4 and 4 are attached to the cartridge tray supporting plates 5 and 5 or the chassis 6.
The engaged portion 8 that engages with the engaging portion provided in
The cartridge tray support plates 5 and 5 or the chassis 6 are
An engaging portion 9 is provided to prevent the lock arms 4 and 4 from rotating in the unlocking direction by the engagement of the engaged portion 8 when the cartridge tray 3 moves.

As shown in FIG. 2, the disc cartridge 2 is provided with a disc 21 having recording surfaces on the front and back sides, a case 22 that rotatably accommodates the disc 21, and upper and lower surfaces of the case 22. Picked up window 23
And a shutter 25 for opening and closing the spindle and chucking window 24, and shutter opening and closing members 26, 2 provided on both side surfaces of the case 22 to open and close the shutter 25.
6 and a positioning hole 2 penetrating the upper and lower surfaces of the case 22.
7 and 27, and these positioning holes 27, 27
Recesses 28, 28 for fitting a positioning roller, which will be described later, are provided in a state where they are arranged side by side.

When the disk cartridge 2 is inserted into the cartridge tray 3, the shutter opening / closing member 26 is pressed by the shutter opening / closing member operating lever 31 provided on the inner surface of the cartridge tray 3 as shown in FIG. The shutter 25 is automatically opened.

Further, the cartridge tray 3 has a pair of left and right U-shaped rail members 3 as shown in FIGS.
2, 33 and a pair of U-shaped rail members 32, 33
And a connecting plate 34 which is connected in a state where the open end sides thereof are opposed to each other, and one end side is a cartridge insertion port 35.

As shown in FIG. 3, the ends of the outer surfaces of the rail members 32 and 33 on the side of the cartridge insertion port 35 and the ends on the opposite side of the cartridge insertion port 35 (hereinafter referred to as the rear end). The support pins 36, 36 provided on the cartridge tray support plates 5, 5 are slidably attached to the cartridge tray support plates 5, 5.

The lock arms 4 and 4 are rotatably attached to the inner ends of the rail members 32 and 33 by a shaft 41, and are locked to the tips of one ends extending toward the disc insertion port 35. The roller 42 is rotatably attached, and the lock arms 4 and 4 have springs 43.
The rotation force is applied to the lock roller 42 and the lock roller 42 enters the cartridge tray 3.

When the disc cartridge 2 is inserted into the cartridge tray 3, the lock roller 42
Is pushed by the upper surface of the disc cartridge 2 and escapes and rotates against the spring force of the spring 43, the disc cartridge 2 is completely inserted into the cartridge tray 3, and Recesses 28, 28
When the lock roller 42 comes to the position of the lock roller 42,
2 is a concave portion 2 due to the spring force of the spring 43 as shown in FIG.
The disk cartridge 2 is adapted to be fitted inside the disk 8 and 28 so as to lock the disk cartridge 2.

Further, the cartridge tray support plate 5,
5 is the rail members 32, 3 of the cartridge tray 3
3, and the cartridge tray support plates 5 and 5 are arranged on the outside of the cartridge tray 3 respectively.
Support pins 3 provided on the outer surfaces of the rail members 32, 33 of
Tray guide holes 51, 52 for inserting 6, 36 and a pair of front and rear operation plate guide holes 53, 54 for guiding the slide of the cartridge tray drive operation plate 7 described below are provided.

The tray guide holes 51 and 52 include horizontal hole portions 51a and 52a and horizontal hole members 51a and 52a.
Vertical hole portions 51b and 52b connected to each other, and one end portion of the horizontal hole members 51a and 52a has support pins 36,
36, the cartridge tray 3 is supported at the disc unloading position, and the vertical hole 51
When the support pins 36, 36 are located at the lower ends of the b, 52b, the cartridge tray 3 is supported at the disc unloading position.

The chassis 6 is made of aluminum alloy or the like in a flat plate shape, and the cartridge tray support plates 5 and 5 are erected on both sides thereof, and the space between the cartridge tray support plates 5 and 5 is increased. A turntable 61 and a spindle motor 62 for driving the turntable are arranged on the upper surface of the central portion of the.

Further, disk cartridge positioning pins 63, 63 are provided upright on both sides of the upper surface of the chassis 6 near the cartridge tray support plates 5, 5. Then, when the cartridge tray 3 moves from the disc unloading position to the disc loading position, the positioning hole 2 provided in the disc cartridge 2
Positioning pins 63, 63 provided on the chassis 5 on the 7, 27
Are fitted to position the disc cartridge 2, and the disc 21 in the disc cartridge 2 is rotatably mounted on the turntable 61.

The cartridge tray drive operation plate 7 is a metal plate having a predetermined thickness and is formed in a rectangular shape elongated in the lateral direction. A rack 71 is formed on the upper end surface of the plate 7 and the vicinity of the upper end surface. Is provided with a pair of front and rear support pins 72, 73 projecting to one side surface side.

A pair of front and rear cam holes 74, 75 for moving the cartridge tray 3 are formed below the pair of support pins 72, 73.

The cartridge tray drive operation plate 7 is constructed by inserting the pair of front and rear support pins 72, 73 into the pair of front and rear operation plate guide holes 53, 54 provided in the cartridge tray support plates 5, 5. Support pins 3 are attached to the outer surfaces of the cartridge tray support plates 5 and 5 so as to be slidable in the front-rear direction, and are provided on the outer surfaces of the rail members 32 and 33 of the cartridge tray 3.
The tips of 6, 36 are the cartridge tray support plates 5, 5
Through the tray guide holes 51 and 52 provided at the front and rear.

The cam holes 74 and 75 are slanted long holes 7
4a, 75a and these slanted long hole members 74a, 75
a first horizontal hole portion 74b continuously provided at the upper end of a,
75b and second horizontal hole portions 74c and 75c continuously provided at the lower ends of the long hole portions 74a and 75a.

The first horizontal holes 74b and 75b are the tray guide holes 5 of the cartridge tray support plates 5 and 5.
The first and second horizontal hole portions 51a and 52a are formed at substantially the same height, while the second horizontal hole portions 74c and 75 are formed.
c is formed at the height position of the lower ends of the vertical hole portions 51b and 52b of the tray guide holes 51 and 52 of the cartridge tray support plates 5 and 5, respectively.

As shown in FIG. 4, when the cartridge tray drive operation plate 7 is slid most toward the cartridge insertion port 35 of the cartridge tray 2, the cartridge tray is inserted into the first horizontal holes 74b and 75b. 3, the support pins 36, 36 of the cartridge 3 are positioned, and the cartridge tray 3 is held at the disc unloading position. From this state, the cartridge tray drive operation plate 7 is directed in the direction opposite to the cartridge insertion port 35 (direction of arrow A in FIG. 4).
When slid on, the slanted long holes 74a, 75a are formed.
Vertical wall surfaces 74d and 75d provided at the upper end of the cartridge abut on the support pins 36 and 36 of the cartridge tray 3 and the horizontal holes of the tray guide holes 51 and 52 provided in the cartridge tray support plates 5 and 5 for the cartridge tray 2. Parts 51a, 52
Slide along the a toward the vertical hole portions 51b, 52b.

When the support pins 36, 36 come to the positions of the vertical holes 51b, 52b, the support pins 36, 36
Is pushed down along the vertical holes 51b, 52b of the cartridge tray support plate 4 by the inclined elongated holes 74a, 75a, and when the cartridge tray 3 reaches the disc unloading position, the second horizontal holes are formed. 74
The support pins 36, 36 are fitted into the c, 75c,
The cartridge tray 3 is held in the disc unloading position.

Next, the engaged portion 8 and the engaging portion 9 which prevent the lock arms 4 and 4 from rotating in the unlocking direction during the movement of the cartridge tray 3 which is the gist of the present invention will be described.

As shown in FIG. 3, the engaged portion 8 is formed by rotatably attaching a rotating roller 82 with a shaft 81 to one end of each of the lock arms 4 and 4.

The engaging portion 9 prevents the lock arms 4 and 4 from rotating in the unlocking direction due to the engaged portion 8 engaging during the movement of the cartridge tray 3 as described above. The engagement portion 9 is provided with the lock arm 4, when the cartridge tray 3 is moving in the horizontal direction.
4 for preventing the rotation of the lock arms 4 and 4 in the unlocking direction, and a vertical engagement portion for preventing the lock arms 4 and 4 from rotating in the unlocking direction when the cartridge tray 3 is moving in the vertical direction. And a direction engaging portion 92.

In the illustrated embodiment, the engaging portion 9 is
Is formed by utilizing the end surfaces of the cartridge tray support plates 5 and 5, and a part of the upper end surface of the cartridge tray support plates 5 and 5 is a horizontal engaging portion 91 and is continuous with this. Part of the side end surfaces of the cartridge tray support plates 5 and 5 is a vertical engaging portion 92.

Then, the disc cartridge 2 is inserted into the cartridge tray 3, the disc cartridge 2 is locked by the lock arms 4 and 4, and the cartridge tray 3 is inserted into the horizontal hole portions 51a of the tray guide holes 51 and 52.
When it starts to move in the horizontal direction along 52a, as shown in FIG. 5, the rotating roller 82 as the engaged portion 8 engages with the horizontal engaging portion 91 to unlock the lock arms 4 and 4. The rotation roller 82 while preventing rotation in the direction.
Moves to the upper end of the vertical engaging portion 92, and when the cartridge tray 3 starts to move vertically along the vertical hole portions 51b and 52b of the tray guide holes 51 and 52, the rotating roller 82 engages in the vertical direction. The cartridge tray 3 is moved to the disc loading position as shown in FIG. 6 in a state where it is engaged with the joint portion 92 and the rotation of the lock arms 4 and 4 in the unlocking direction is blocked. ..

In FIG. 3, 101 is a pinion meshing with the rack 71.
Is rotated by a motor (not shown) for driving the cartridge tray.

Further, in FIG. 7, reference numeral 102 denotes a top plate provided on the upper ends of the cartridge tray support plates 5 and 5, and a chucking plate 103 made of a magnet is attached to the central portion of the top plate 102. The chucking plate 103 is supported by a link mechanism 104 so as to be able to move up and down (movable up and down), and can be moved up and down by a link operating lever 105. Reference numeral 106 denotes a lever operating portion for operating the link operating lever 105. The lever operating portion 106 is provided at one end of the cartridge tray drive operating plate 7, and the cartridge tray drive operating plate 7 is used for disc loading. When it slides in the direction, the inclined lever pressing surface 107 of the lever operating portion 106 presses the link operating lever 105 against the spring force of the return spring 108, and the link mechanism 1
04 is operated to lower the chucking plate 103.

Next, the operation of the disc loading device of the embodiment will be described.

When the disc cartridge 2 is inserted into the cartridge tray 3, the shutter opening / closing member operating lever 3
1, the shutter opening / closing member 26 is pressed to automatically open the shutter 25, and the lock rollers 4 of the lock arms 4 and 4 are inserted into the recesses 28 and 28 provided in the disc cartridge 2.
2, 42 are fitted to lock the disc cartridge 2.

When the lock arms 4, 4 and the disk cartridge 2 are locked, the motor for driving the cartridge tray is turned on, and the pinion 101 rotates to move the cartridge tray drive operation plate 7 in the disk loading direction.

When the cartridge tray drive operation plate 7 moves, the rotation rollers 42, 42 of the lock arms 4, 4 engage the engaging portion 9 utilizing the end faces of the cartridge tray support plates 5, 5.
To prevent the lock arms 4 and 4 from rotating in the unlocking direction while the cartridge tray 3 is moving.

When the cartridge tray 3 is lowered to the disc loading position, the chassis 6 is inserted into the positioning holes 27, 27 provided in the disc cartridge 2.
The positioning pins 63 and 63 provided on the disk cartridge 2 are fitted to position the disk cartridge 2, and the disk 21 in the disk cartridge 2 is mounted on the turntable 61.
The chucking plate 10 is almost simultaneously placed on the chucking plate 10.
3 descends and the disk 21 is turned on the turntable 61.
Chuck up and record / play back.

After the end of recording / reproducing, when the pinion 101 is rotated in the reverse direction by the motor for driving the cartridge tray, the cartridge tray drive operation plate 7 moves in the disc unloading direction, and the chucking plate 103 and the cartridge tray 3 are raised. After that, the cartridge tray 3 is moved horizontally to return the cartridge tray 3 to the disc unloading position.

Although the engaging portion 9 is formed by utilizing the end faces of the cartridge tray supporting plates 5 and 5 in the illustrated embodiment, the end faces may not necessarily be utilized. The engaging portion 9 may be provided on the chassis 6.

[0047]

Since the disk loading device of the present invention has the structure as described above, the lock arm is unlocked when the cartridge tray is moved between the disk unloading position and the disk loading position. Rotation to prevent the lock cartridge from unlocking the disc cartridge by the lock arm, and prevent the disc from deviating from the turntable when loading the disc due to unlocking. The effect is that it can be placed accurately on top.

[Brief description of drawings]

FIG. 1 is a plan view of a disc loading device according to the present invention.

FIG. 2 is a plan view of a disc cartridge.

FIG. 3 is an exploded perspective view of a main part.

FIG. 4 is a side view showing a state in which a disc cartridge is inserted.

FIG. 5 is a side view showing a state where the cartridge tray is moved in the horizontal direction.

FIG. 6 is a side view showing a state in which the cartridge tray is moved in the vertical direction.

FIG. 7 is a perspective view of a chucking plate portion.

FIG. 8 is an exploded perspective view of a conventional example.

[Explanation of symbols]

1 ... Disc loading device, 2 ... Disc cartridge, 3 ... Cartridge tray, 4 ... Lock arm, 5
... cartridge tray support plate, 8 ... engaged portion, 9 ... engaging portion.

Claims (1)

[Claims] 1. A cartridge tray into which a disc cartridge is inserted, and a disc tray inside the cartridge tray, which is rotatably provided in the cartridge tray and is fitted into a recess provided in the inserted disc cartridge. A lock tray for locking the cartridge tray to a disk, and a cartridge tray support plate for movably supporting the cartridge tray between a disc unloading position and a disc loading position. When the cartridge tray supporting plate or the chassis is moved between the unloading position and the disc loading position, an engaged portion that engages with an engaging portion provided on the cartridge tray supporting plate or the chassis is provided. Tray transfer Sometimes, the engaged portion are engaged, the disk loading device, characterized in that the locking arm is provided with engaging portions for preventing the pivoting in the unlocking direction.