JPH0541015A - Disk loader - Google Patents

Abstract

PURPOSE:To securely position a cartridge even when a positioning pin is hooked in a peripheral part of a positioning hole by providing an arm operating part for imparting turning force in the direction of pressing down the cartridge to a cartridge pressing arm. CONSTITUTION:A cartridge tray is provided with the cartridge pressing arm 7 for pressing the cartridge to the side of the positioning pin 6 on its one end side. Then, a cartridge tray supporting plate 4 is provided with the arm operating part 8 for imparting turning force in the direction of pressing down the cartridge to the cartridge pressing arm 7 at the time of lowering the cartridge tray. Under this constitution, the cartridge tray is moved to a disk loading position, and when a 2nd roller 73 is brought into contact with the arm operating part 8 of the supporting plate 4, the pressing arm 7 is given turning force by the arm operating part, and even if the positioning pin 6 is more or less deviated from the positioning hole of the cartridge, the positioning is performed by their forced engagement.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc loading apparatus used for a disc player, and more particularly, to a disc cartridge pushing arm which pushes the disc cartridge toward the chassis before and after the loading of the disc. The positioning pin on the chassis is inserted into the positioning hole of (1) so that the disk cartridge can be reliably positioned at the disk loading position.

[0002]

2. Description of the Related Art As a disc loading device, as shown in FIG. 8, a cartridge tray 202 into which a disc cartridge 201 is inserted, and a cartridge tray 2
A pair of left and right cartridge tray support plates 203, 203 that movably support 02 between the disc unloading position and the disc loading position, a chassis 204 provided with these cartridge tray support plates 203, 203, and the chassis 204. And a pair of left and right positioning pins 2 fitted in the pair of left and right positioning holes 205 provided in the disc cartridge 201.
06 and 206, and the cartridge tray support plate 203
There is known one provided with a pair of left and right cartridge tray drive operation plates 207, 207 for moving the cartridge tray 202 along.

When the disc cartridge 201 is inserted into the cartridge tray 202, the disc loading device turns on a cartridge tray driving motor (not shown) to slide the cartridge tray driving operation plates 207, 207 to operate them. Board 2
The cartridge tray 202 is moved from the disc unloading position to the disc loading position by the cam grooves 208 and 208 provided on the disc 07 and 207, and the positioning pins 206 and 206 are fitted into the positioning holes 205 and 205 provided on the disc cartridge 201. The disc cartridge 201 is positioned and the disc in the disc cartridge 201 is placed on the turntable 209.

Reference numeral 210 is a disk cartridge 20.
1 is a lock arm for positioning 1 in the cartridge tray 202. The lock arm 210 is given a turning force by the spring force of the coil spring 211, and when the disc cartridge 201 is inserted into the cartridge tray 202, A lock roller 213 provided at the tip of the lock arm 210 is fitted into a recess 212 provided on the upper surface to lock, that is, fix the disc cartridge 201 in position.

[0005]

By the way, in the above-mentioned conventional disc loading apparatus, when the cartridge tray 202 descends toward the disc loading position, as shown in FIG.
The conical surface 206a at the tip of 6 is the disk cartridge 20.
There is a problem that the disk cartridge 201 is lifted in the cartridge tray 202 by being caught on the peripheral edge of the positioning hole 205 of No. 1.

The present invention solves the above-mentioned conventional problems, and even when the tip of the positioning pin is caught in the peripheral portion of the positioning hole, the positioning pin can be forcibly fitted into the positioning hole. The purpose is to provide.

[0007]

A cartridge tray into which a disc cartridge is inserted, a cartridge tray support plate that movably supports the cartridge tray between a disc unloading position and a disc loading position, and the cartridge tray support. A disc loading device comprising: a chassis provided with a plate; and a positioning pin which is provided upright on the chassis and which is fitted into a positioning hole provided in the disc cartridge to position the disc cartridge. Is provided with a disk cartridge pressing arm for pressing the disk cartridge toward the positioning pin at one end side, and the disk tray pressing plate is provided on the cartridge tray support plate or the chassis when the cartridge tray is lowered. It engaged with the other end of the arm, provided with the arm operating portion to impart rotational force to the disk cartridge pressing direction to the disc cartridge pressing arm.

[0008]

When one end of the disk cartridge pressing arm engages with the arm operating portion, the disk cartridge pressing arm rotates in the disk cartridge pressing direction and presses the disk cartridge in the pressing direction. Even if the tip of the pin is caught, the disc cartridge can be forcibly pushed down to insert the positioning pin into the positioning hole.

[0009]

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

Reference numeral 1 denotes a disc loading device of the present invention. The disc loading device 1 is capable of moving a cartridge tray 3 into which a disc cartridge 2 is inserted and the cartridge tray 3 between a disc unloading position and a disc loading position. A pair of left and right cartridge tray support plates 4 and 4 supported on the chassis, and a chassis 5 provided with these cartridge tray support plates 4 and 4.
And a pair of left and right positioning pins 6 and 6 which are erected on the chassis 5 and are fitted into a pair of left and right positioning holes 27, 27 provided in the disk cartridge 2 to position the disk cartridge 2. I have it.

Then, in the cartridge tray 3,
A disk cartridge pressing arm 7 for pressing the disk cartridge 2 toward the positioning pins 6 and 6 is provided, and the disk cartridge pressing arm 7 is pressed on the cartridge tray support plates 4 and 4 or the chassis 5 when the cartridge tray 3 is lowered. An arm operating portion 8 is provided which engages with the other end of the arm 7 and applies a turning force in the disc cartridge pressing direction to the disc cartridge pressing arm 7.

Reference numeral 9 is a cartridge tray drive operation plate for moving the cartridge tray 3 along the cartridge tray support plates 4 and 4.

As shown in FIG. 2, the disc cartridge 2 has a disc 21 having recording surfaces on the front and back sides, a case 22 for rotatably accommodating 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, positioning holes 27, 27 penetrating the upper and lower surfaces of the case 22, and a pair of left and right recesses 28, 28 for fitting positioning rollers described later in a state of being aligned with the positioning holes 27, 27. ..

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

As shown in FIGS. 1 and 3, the cartridge tray 3 has a pair of left and right U-shaped rail members 3 provided with the shutter opening / closing member operating lever 31 on the inner surface thereof.
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 of the disk are opposed to each other, and one end side thereof is a disc insertion opening 35.
It has become.

A support pin 36 is provided at the end of the outer surface of each of the rail members 32 and 33 on the side of the disk insertion port 35 and at the end on the opposite side of the disk insertion port 35 (hereinafter referred to as the rear end). , 36 so as to be slidably attached to the cartridge tray support plates 4, 4.

The pair of left and right cartridge tray support plates 4 and 4 are arranged outside the rail members 32 and 33 of the cartridge tray 3, and the cartridge tray support plates 4 and 4 are provided with the cartridge. Tray guide holes 41, 42 into which support pins 36, 36 provided on the outer surfaces of the rail members 32, 33 of the tray 3 are inserted
And a pair of front and rear operation plate guide holes 43 and 44 for guiding the slide of the cartridge tray drive operation plate 9.

The tray guide holes 41, 42 are composed of horizontal hole portions 41a, 42a and vertical hole portions 41b, 42b connected to the horizontal hole portions 41a, 42a. Support pins 36, 36 at one end
Is positioned, the cartridge tray 3 is supported at the disc unloading position, and the vertical hole portions 41b, 4b.
When the support pins 36, 36 are located at the lower end of 2b, the cartridge tray 3 is supported at the disc unloading position.

The chassis 5 is made of an aluminum alloy or the like in a flat plate shape, and the cartridge tray support plates 4 and 4 are erected on both right and left sides of the chassis 5. A turntable 51 and a spindle motor 52 for driving the turntable are arranged on the upper surface of the central portion between them.

Positioning pins 6 and 6 for the disk cartridge are provided upright in the vicinity of the cartridge tray support plates 4 and 4 on both left and right sides of the upper surface of the chassis 5.

When the disc tray 3 moves from the disc unloading position to the disc loading position, the positioning pins 27, 27 provided in the disc cartridge 2 are fitted with the positioning pins 6, 6 provided in the chassis 5. Then, the disc cartridge 2 is positioned and the disc 21 in the disc cartridge 2 is rotatably mounted on the turntable 51.

The cartridge tray drive operation plate 9 is a metal plate having a predetermined thickness and is formed in a rectangular shape elongated in the lateral direction. A rack 91 is formed on the upper end surface of the plate and the vicinity of the upper end surface. Is provided with a pair of front and rear support pins 92, 93 protruding to one side surface side.

A pair of front and rear cam holes 94 and 95 for moving the cartridge tray 3 are formed below the pair of support pins 92 and 93.

Then, the disc tray drive operation plate 9 is provided.
By inserting the pair of front and rear support pins 92 and 93 into the pair of front and rear operation plate guide holes 43 and 44 provided in the cartridge tray support plates 4 and 4, the front and rear surfaces of the cartridge tray support plates 4 and 4 are moved forward and backward. Support pins 36, 3 mounted on the outer surfaces of the rail members 32, 33 of the cartridge tray 3 while being slidably mounted in the same direction.
The tip of 6 is inserted into the pair of front and rear cam holes 94, 95 through the tray guide holes 41, 42 provided in the cartridge tray support plates 4, 4.

The cam holes 94 and 95 are slanted long holes 9
4a and 95a and these slanted long holes 94a and 95a
First horizontal holes 94b, 9 provided continuously at the upper end of the
5b and second horizontal holes 94c, 95c continuously provided at the lower ends of the long holes 94a, 95a.

The first horizontal holes 94b and 95b are the tray guide holes 4 of the cartridge tray support plates 4 and 4.
The second horizontal hole portions 94c and 95 are formed at substantially the same height as the horizontal hole portions 41a and 42a of the first and the second horizontal holes 42, respectively.
c is formed at the height position of the lower ends of the vertical hole portions 41b, 42b of the tray guide holes 41, 42 of the cartridge tray support plates 4, 4.

As shown in FIG. 4, when the cartridge tray drive operation plate 9 is slid to the direction of the cartridge insertion port 35 of the cartridge tray 3, the first horizontal hole portions 94b and 95b receive the cartridge. The support pins 36, 36 of the tray 3 are positioned, and the cartridge tray 3 is held at the disc unloading position. From this state, the cartridge tray drive operation plate 9 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 94a, 95a are formed.
The vertical wall surfaces 94d and 95d provided at the upper end of the cartridge abut on the support pins 36 and 36 of the cartridge tray 2, and the horizontal holes of the tray guide holes 41 and 42 provided in the disc tray support plates 4 and 4 of the cartridge tray 3. Slide along the portions 41a and 42a toward the vertical hole portions 41b and 42b.

When the support pins 36, 36 come to the positions of the vertical holes 41b, 42b, the support pins 36, 36
Is the vertical holes 41b and 42b of the cartridge tray support plates 4 and 4 due to the inclined long holes 94a and 95a.
When the cartridge tray 3 is pushed down along the line and reaches the disc unloading position, the support pins 36, 36 are fitted into the second horizontal holes 94c, 95c, and the cartridge tray 3 is held at the disc loading position. It will be in the state where it was.

Next, when the disk cartridge pressing arm 7 and the cartridge tray 3 which are the gist of the present invention are lowered, they are engaged with the disk cartridge pressing arm 7 and the disk cartridge pressing arm 7 is rotated in the disk cartridge pressing direction. The configuration of the arm operation unit 8 that applies power will be described.

As shown in FIG. 3, the disk cartridge pressing arm 7 is rotatably supported at the center by a shaft 71 on the inner ends of the rail members 32 and 33.
A first roller 72 is rotatably attached to the tip of one end extending toward the disk insertion port 35, and a first roller 72 is attached to the tip of the other end extending toward the opposite side of the cartridge insertion port 35. Two rollers 73 are rotatably attached.

The disc cartridge pressing arm 7
Is given a turning force by a spring 74 so that the first roller 72 is inserted into the cartridge tray 3 and the second roller 73 is attached to the cartridge tray support plates 4, 4
It is in a state of being lifted from the arm rotation permitting surface 45 provided on the.

When the disc cartridge 2 is inserted into the cartridge tray 3, the first roller 72 is pushed by the upper surface of the disc cartridge 2 and the spring 7
The disk cartridge 2 is completely inserted into the cartridge tray 3 by rotating away from the spring force of the disk cartridge 4, and the roller fitting recess 2 provided in the disk cartridge 2 is provided.
When the rollers 8 and 28 come to the position of the first roller 72, the first roller 72 is fitted into the recesses 28 and 28 by the spring force of the spring 74 to lock the disc cartridge 2.

When the cartridge tray 3 starts to move from the disc unloading position toward the disc loading position, the second roller 73 moves the cartridge tray supporting plates 4 and 4 continuous with the arm rotation permitting surface 45. It contacts the arm rotation blocking surface 46 and moves along the arm rotation blocking surface 46.

Then, the cartridge tray 3 descends,
When the positioning holes 27, 27 of the disk cartridge 2 housed in the cartridge tray 3 are lowered to the positions of the tips of the positioning pins 6, 6, the second
The roller 73 contacts the arm operation portion 8 provided on the cartridge tray support plates 4 and 4 continuously with the arm rotation preventing surface 46, and the disc cartridge pressing arm 7 rotates to push down the disc cartridge 3. Even if the peripheral edges of the positioning holes 27, 27 of the disc cartridge 2 are caught at the tips of the positioning pins 6, 6, the positioning pins 6, 6 are forcibly inserted into the positioning holes 27, 27.

In FIG. 3, 101 is a pinion meshing with the rack 91.
Is rotated by a motor (not shown) for driving the disc tray.

Further, in FIG. 7, reference numeral 102 denotes a top plate provided on the upper ends of the cartridge tray support plates 4 and 4.
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 9, and the disc tray drive operating plate 9 is used for loading the disc. When slid 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 104.
Is operated to lower the chucking plate 103.

Next, the operation of the disk 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
The shutter opening / closing member 26 is pressed by 1 to automatically open the shutter 25, and the first roller 72 of the disk cartridge pressing arm 7 is fitted into the recesses 28, 28 provided in the disk cartridge 2 to open the disk cartridge 2 To lock. When the disc cartridge 2 is locked by the disc cartridge pressing arm 7, the motor for driving the cartridge tray is turned on and the pinion 101 is rotated to move the cartridge tray drive operation plate 9 in the disc loading direction.

When the cartridge tray drive operation plate 9 moves, the first roller 7 of the disk cartridge pushing arm 7 is moved.
2 contacts an arm rotation preventing surface 46 formed by utilizing the end surfaces of the cartridge tray support plates 4 and 4, and the disk cartridge pressing arm 7 is moved while the cartridge tray 3 is moving.
To prevent it from rotating in the unlocking direction.

Then, when the disc cartridge 2 accommodated in the cartridge tray 3 descends together with the cartridge tray 3 and the positioning holes 27, 27 come to the positions of the tips of the positioning pins 6, 6, the disc cartridge pressing arm 7 is pressed. Second roller 73 engages with the arm operation portion 8 provided on the cartridge tray support plate 4 to rotate the disk cartridge pressing arm 7, and the conical surface at the tip of the positioning pins 6 and 6 causes the positioning holes 27 and 27. Even if the disk cartridge 2 is caught on the peripheral edge of the disk cartridge 2, the disk cartridge 2 is positioned by pushing it into the outer circumferences of the positioning holes 27, 27, and the disk 21 in the disk cartridge 2 is placed on the turntable 51. ..

At about the same time as the disc is placed on the turntable 51, the chucking plate 103 descends, and the disc 21 is chucked on the turntable 51 for recording and reproduction.

After the end of recording / reproduction, when the pinion 101 is rotated in the reverse direction by the motor for driving the cartridge tray, the cartridge tray drive operation plate 9 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.

In the embodiment shown in the drawings, the disk cartridge pressing arm 7 is provided with a function as a lock arm for positioning and fixing the disk cartridge 2 in the cartridge tray 3. However, the disk cartridge pressing arm 7 and the disk cartridge pressing arm 7 are locked. The arm may be formed separately.

Further, in the embodiment, the case where the arm operating portion 8 is provided on the disc cartridge tray support plates 4 and 4 is shown, but the arm operating portion 8 may be provided on the chassis 5.

[0045]

The disk loading apparatus of the present invention has the above-described structure, and the disk cartridge pressing arm can be used by the disk cartridge pressing arm even when the peripheral edge of the positioning hole of the disk cartridge is caught at the tip of the positioning pin. There is an effect that the positioning pin can be surely inserted into the positioning hole by pushing down.

[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.

FIG. 9 is an explanatory diagram showing a problem of the conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Disk loading device, 2 ... Disk cartridge, 3 ... Cartridge tray, 4 ... Cartridge tray support plate, 5 ... Chassis, 6 ... Positioning pin, 7 ... Disk cartridge pressing arm, 8 ... Arm operation part, 27
… Positioning holes.

Claims (1)

[Claims] 1. A cartridge tray into which a disc cartridge is inserted, a cartridge tray support plate movably supporting the cartridge tray between a disc unloading position and a disc loading position, and the cartridge tray support plate. The chassis includes a chassis and a positioning pin that is provided upright on the chassis and that is fitted into a positioning hole provided in the disc cartridge to position the disc cartridge. Is provided with a disc cartridge pressing arm for pushing the disc cartridge pressing arm toward the positioning pin side, and the cartridge tray supporting plate or the chassis is engaged with the other end side of the disc cartridge pressing arm at the time of lowering the cartridge tray. Disc loading apparatus is characterized by providing an arm operating portion which imparts rotational force to the disk cartridge pressing direction di pressing arm.