JPH0476197B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a carrier configured to be able to reciprocate between a cartridge insertion position and a cartridge mounting position, and a disk cartridge inserted from a cartridge insertion opening. The disc cartridge is configured to be drawn from the cartridge insertion position to the cartridge installation position by the forward movement of the carrier and to be installed therein, and the disk cartridge is ejected from the cartridge installation position to the cartridge insertion position by the backward movement of the carrier. This relates to disk players.

[Conventional technology]

This type of disk player has an opening/closing lid for the cartridge insertion slot provided on the front panel.
Before the disk cartridge is inserted into the cartridge insertion port and after it is completely drawn into the cartridge insertion port, the cartridge insertion port is closed by the opening/closing lid. Conventionally, this opening/closing lid is composed of a single piece of lid material that is rotated upward or downward by a support shaft provided on the upper or lower side along the longitudinal direction of the cartridge insertion opening.
The dedicated opening/closing lid opening/closing mechanism is configured to open/close the opening/closing lid when the detection means detects the start of the retracting operation, the completion of the retracting operation, the ejecting operation, etc. of the disk cartridge.

[Problem that the invention seeks to solve]

However, the conventional disc player described above has the following problems.

That is, when the opening/closing lid that opens and closes the cartridge insertion opening is opened, the lid member having a large width that can at least close the cartridge insertion opening is rotated. In order to open and close the opening/closing lid on the inside, a very large extra stroke must be taken. Therefore, this large stroke becomes a hindrance, making it impossible to bring the carrier for drawing in and ejecting the disk cartridge sufficiently close to the cartridge insertion opening. Therefore, it has been difficult to insert and remove the disk cartridge into and out of the carrier reliably and smoothly.

In addition, since the opening/closing lid is opened and closed by detecting the start of the retracting operation of the disk cartridge, the completion of the retracting operation, the ejection operation, etc. by the detection means, malfunctions are likely to occur in the opening/closing operation and the timing of the opening/closing operation of the opening/closing lid. However, there were disadvantages such as the opening/closing lid being closed during the retracting and ejecting operations of the disk cartridge.

Therefore, the present invention makes it possible to bring the carrier sufficiently close to the cartridge insertion opening by reducing the margin stroke for opening and closing the opening/closing cover inside the cartridge insertion opening, and also reduces the amount of movement of the carrier to draw the disc cartridge. The purpose is to reliably open and close the opening/closing lid in conjunction with the discharge operation and the like.

[Means for solving problems]

The present invention provides the above-mentioned disk player with a pair of opening/closing lids configured to be pushed open in a double-door shape by the disk cartridge inserted into the cartridge insertion slot, and after the disk cartridge is inserted into the cartridge insertion slot. In conjunction with the start of the pulling operation of the disk cartridge by the carrier, the pair of opening/closing lids are forcibly opened, and in conjunction with the completion of the pulling operation of the disk cartridge into the cartridge insertion slot. The pair of opening/closing lids are forcibly closed, and the pair of opening/closing lids are forcibly opened in conjunction with the ejecting operation of the disk cartridge from the cartridge mounting position to the cartridge insertion position by the carrier. This disc player is characterized by being provided with an opening/closing lid opening/closing mechanism configured as follows.

[Effect]

According to the above-mentioned technical means, the pair of opening/closing lids are opened and closed inside the cartridge insertion slot with a very small stroke. Further, the opening/closing lid opening/closing mechanism forcibly opens and closes the pair of opening/closing lids in conjunction with the start of the disk cartridge retraction operation by the carrier, the completion of the retraction operation, and the ejection operation.

〔Example〕

An embodiment of a disc player to which the present invention is applied will be described below with reference to the drawings.

First, the configuration and operation of the disk player 1 will be outlined with reference to FIGS. 3A and 3B.

The disk player 1 has a front-loading structure, and a cartridge insertion slot 3 is provided in the front panel 2, and inside the disk player 1 there are a carrier 4, a turntable 5, a clamper 6, a writing (recording) /or a reading (reproduction) head 7, etc. are provided. The carrier 4 has a tray 8 arranged horizontally, and a pair of left and right rack plates 9 arranged vertically and parallel to each other on the left and right sides of the tray 8.

In this disk player 1, first, the disk cartridge 11 is horizontally inserted into the cartridge insertion opening 3 from the front end 11a side in the direction of arrow a, as shown by the two-dot chain line in FIG. 3A. Then, as shown by the solid line, disk cartridge 1
1 is completely inserted into the carrier 4 from the direction of arrow a, placed horizontally on the tray 8, and stopped.
Here, the rear end 11b side of the disk cartridge 11 horizontally inserted into the carrier 4 is in a state of protruding from the cartridge insertion opening 3 to the outside of the front panel 2. This state is the cartridge insertion position.

Next, after the disk cartridge 11 is horizontally inserted into the carrier 4 as described above, the pinion 14 is started to rotate by a motor (not shown).
Disk cartridge 1 due to forward movement of carrier 4
A loading operation of No. 1 is started. That is, when the pinion 14 is rotated by a motor (not shown) to drive the rack 15 of the rack plate 9, a pair of front and rear guide rollers 16 pivotally attached to both front and rear ends of the rack plate 9 are moved horizontally toward the chassis side. The rack plate 9 is rolled within a guide rail 17 which is fixed in a shape, thereby horizontally driving the rack plate 9 in the direction of arrow a. At this time, the tray 8 is also horizontally transferred together with the rack plate 9 in the direction of the arrow a, and the tray 8 is automatically moved in the direction of the arrow a from the cartridge insertion position shown by the solid line to the cartridge retraction position shown by the dashed line. I'm drawn into it. As a result, carrier 4
As a result, the disk cartridge 11 is completely drawn into the disk player 1 from the cartridge insertion opening 3, and the disk cartridge 11 is horizontally transferred to a position directly above the turntable 5.
In this state, the tray 8 is stopped.

On the other hand, the arrow a on the rack plate 9 by the pinion 14
The horizontal drive in the direction continues even after the tray 8 is stopped at the cartridge retraction position. As shown in FIG. 3B, when the rack plate 9 continues to be horizontally driven in the direction of the arrow a, the tray 8 is moved up and down by the lifting mechanism (not shown) between the rack plate 9 and the tray 8. is lowered perpendicular to the direction. By vertically lowering the tray 8, the disk cartridge 11 is vertically lowered, and the disks 12 in the disk cartridge 11 are mounted horizontally on the turntable 5. Furthermore, this disk 12
For example, there is a disk called a draw disk (DRAW/DISC) that is capable of both writing (recording) and reading (playback) using an optical or magneto-optical method, and has recording surfaces formed on both the top and bottom sides. It is used. And disk 12 is turntable 5
When mounted horizontally on the turntable 5, the disk 12 is pressed onto the turntable 5 by the clamper 6, and the head 7 is brought close to the lower recording surface of the disk 12.

As described above, the operation of retracting the disk cartridge 11 to the cartridge mounting position by the forward movement of the carrier 4 is completed.

Further, the ejection (unloading) operation of the disk cartridge 11 to the cartridge insertion position by the backward movement of the carrier 4 is performed by an operation completely opposite to the above-described retraction operation.

Next, as shown in FIGS. 1A to 2, a pair of opening/closing lids 20 and 21 provided on the disk player 1 will be described.
And these opening/closing lid opening/closing mechanisms 22 will be explained.

First, a pair of upper and lower opening/closing lids 2 are installed inside the cartridge insertion slot 3 of the front panel 2 of the disk player 1.
0 and 21 are provided. These pair of opening/closing lids 20 and 21 are molded from synthetic resin, extend along the left and right longitudinal direction of the cartridge insertion opening 3, and have a substantially L-shaped cross section. The pair of opening/closing lids 20, 21 are opened/closed by rotating up and down from the center by shafts 23, 24 integrally formed at both left and right ends 20a, 21a. It is composed of Gears 25 and 26 are integrally formed on the shafts 23 and 24 of the left and right ends 20a and 21a of the pair of opening/closing lids 20 and 21, respectively, and these gears 25 and 26 are connected to a pair of intermediate gears 27 and 26 that engage with each other. 28, respectively. Therefore,
The pair of opening/closing lids 20 and 21 are configured to be opened and closed simultaneously in conjunction with each other. Furthermore, gear 2
5, 26 and intermediate gears 27, 28 are pivotally supported by a bracket 29 made of synthetic resin. Further, the bracket 29 is fixed to the chassis side by a mounting member 30.

Next, the opening/closing lid opening/closing mechanism 22 is composed of an interlocking rod 32 and a guide block 33. That is, a support shaft 3 is provided on the chassis side of the disk player 1.
4, an interlocking rod 32 is rotatably attached. A toothed portion 35 is formed at one end of the interlocking rod 32, and this toothed portion 35 is engaged with the gear 28 mentioned above. Further, a roller 36 is rotatably pivotally attached to the other end of the interlocking rod 32. The interlocking rod 32 is urged to rotate in the direction of arrow c by a spring 37, and its rotation in the direction of arrow c is restricted by a stopper 38.

On the other hand, a guide block 33 is fixed to the outer surface of the rack plate 9. This guide block 33
has an almost inverted trapezoidal shape, and has a pair of front and rear slopes 33a,
33b and a horizontal surface 33c intermediate therebetween. The roller 36 of the interlocking rod 32 is located within the movement locus of the guide block 33 due to the movement of the rack plate 9, and the interlocking rod 32 is regulated by the pair of slopes 33a, 33b and the horizontal surface 33c of the guide block 33. It is configured to be rotated.

Next, a pair of opening/closing lids 2 configured as described above will be described.
0, 21 and the operation of these opening/closing drive mechanisms 22 will be explained.

First, in FIG. 1A, before the disk cartridge 11 is inserted into the cartridge insertion slot 3, the interlocking rod 32 is moved by the arrow C by the spring force of the spring 37.
The gear 26 is rotated by the teeth 35 of the interlocking rod 32 via the intermediate gear 28, and the opening/closing lid 21 is closed. At the same time, the gear 25 is also rotated via the intermediate gear 27, and the opening/closing lid 20 is also closed. Therefore, the pair of opening/closing lids 20 and 21 are completely closed to close the cartridge insertion opening 3.

Next, when the disk cartridge 11 is inserted from the front end 11a side into the cartridge insertion slot 3 in the direction of arrow a, the disk cartridge 11
A pair of opening/closing lids 20, 21 by the tip 11a of the
is pushed open up and down. At this time, as shown in FIG. 1B, the disk cartridge 11 is sandwiched between the pair of opening/closing lids 20 and 21 from above and below, and in this state, the disk cartridge 11 is inserted into the carrier 4, and the above-mentioned cartridge It is inserted to the insertion position and then stopped. In addition, a pair of opening/closing lids 20,
21 is pushed open, the intermediate gear 28
The interlocking rod 32 is rotated in the direction of arrow c' against the spring 37 through the interlocking rod 37, but the roller 36 of the interlocking rod 32 is located within the movement locus of the guide block 33.

Next, from the state shown in FIG. 1B, the rack plate 9 is
When the carrier 4 starts pulling in the disk cartridge 11, the slope 33a of the guide block 33 of the rack plate 9 comes into contact with the roller 36 of the interlocking rod 32, and the slope 33a
The roller 36 sinks under the horizontal surface 33c of the guide block 33 due to the guiding action of the guide block 33. As a result, the interlocking rod 32 is moved by the spring 37 as shown in FIG.
The interlocking rod 32 is rotated in the direction of arrow c' against the
The tooth portion 35 rotates the gear 26 via the intermediate gear 28, and the opening/closing lid 21 is forcibly opened. At the same time, the gear 25 is also rotated via the intermediate gear 27, and the opening/closing lid 20 is forcibly opened. In this way, in conjunction with the start of the retracting operation of the disk cartridge 11 by the carrier 4, the pair of opening/closing lids 2
0 and 21 are forcibly opened completely, and the disk cartridge 11 is drawn in between the pair of opening/closing lids 20 and 21 in the direction of arrow a.

When the disk cartridge 11 is completely pulled into the cartridge insertion slot 3 up to the rear end 11b, the roller 36 of the interlocking rod 32 slides 33b onto the slope of the guide block 33, as shown in FIG. 1D.
The interlocking rod 32 is rotated in the direction of arrow c by the spring force of the spring 37.
As a result, contrary to the above, the opening/closing lid 21 is forcibly closed, and at the same time, the opening/closing lid 20 is also forcibly closed. That is, immediately after the disk cartridge 11 is completely pulled into the cartridge insertion port 3, the pair of opening/closing lids 20, 21 are forcibly closed completely, and the cartridge insertion port 3 is closed again.

Thereafter, as described above, the disk cartridge 11 is drawn in by the carrier 4 in the direction of the arrow a, and is drawn into the cartridge mounting position via the cartridge drawing position.

Next, the opening and closing of the pair of opening/closing lids 20 and 21 during the ejection operation of the disk cartridge 11 is performed by a completely opposite operation to the above-described retraction operation.

That is, as shown in FIG. 1D, the carrier 4
When the disk cartridge 11 in the carrier 4 is moved back in the direction a' and the rear end 11b side of the disk cartridge 11 approaches the cartridge insertion opening 3 side, the slope 33b of the guide block 33 comes into contact with the roller 36 of the interlocking rod 32. Due to the guiding action of this slope 33b, the roller 36 sinks under the horizontal surface 33c of the guide block 33. As a result, the interlocking rod is rotated in the direction of arrow c' against the spring 37, as shown in FIG. 1C, and the pair of opening/closing lids 20, 21 are forcibly opened completely. And these pair of opening/closing lids 20, 21
The disk cartridge 11 passes between the rear end 1
It is discharged from the 1b side in the direction of arrow a'.

Next, when the discharge operation of the disk cartridge 11 approaches the completion stage, the rollers 36 of the interlocking rod 32 are guided by the slope 33a of the guide block 33, so that the interlocking rod 3 is moved as shown in FIG. 1B.
2 is rotated in the direction of arrow c by the spring force of spring 37. As a result, the pair of opening/closing lids 20, 21 are closed, and the disk cartridge 11 is sandwiched between the pair of opening/closing lids 20, 21 from above and below. Immediately after this, the backward movement of the carrier 4 in the direction of arrow a' is stopped, and the disk cartridge 11 is stopped at the cartridge insertion position.

When the disk cartridge 11 is pulled out from the cartridge insertion slot 3 in the direction of arrow a', the interlocking rod 32 is further rotated in the direction of arrow c by the spring force of the spring 37, as shown in FIG. 1A. Therefore, the pair of opening/closing lids 20 and 21 are forcibly closed completely, and the cartridge insertion slot 3 is completely closed again.

By the way, since the pair of opening and closing lids 20 and 21 that open and close the cartridge insertion opening 3 are opened and closed in a double-door shape, the margin stroke S ₁ required to open and close the pair of opening and closing lids 20 and 21 inside the cartridge insertion opening 3 is (Fig. 1A) is extremely small.
Therefore, when the disk cartridge 11 is inserted into the cartridge insertion opening 3 and removed from the cartridge insertion opening 3, the distal end 4 of the carrier 4
a position P (Fig. 1A) into the cartridge insertion slot 3.
The stroke S ₂ (FIG. 1A) can be brought close enough to the side. As a result, the disk cartridge 11 is inserted into the carrier 4 and the carrier 4
It is now possible to extract the material very reliably and smoothly.

In addition, the opening/closing lid opening/closing mechanism 22 forcibly opens and closes the pair of opening/closing lids 20 and 21 in conjunction with the start of the retracting operation of the disk cartridge 11 by the carrier 4, the completion of the retracting operation, and the ejection operation, respectively. Therefore, these pair of opening/closing lids 2
The opening/closing operations of 0 and 21 and their timing are extremely reliable.

Moreover, especially in this embodiment, the pair of opening/closing lids 20 and 21 are opened and closed by the guide block 33 that moves with the reciprocating motion of the carrier 4 and the interlocking rod 32 that is regulated by and interlocks with this guide block 33. The lid opening/closing mechanism 2
2 can be made extremely simple.

Next, the carrier locking mechanism 40 for locking the carrier 4 at the cartridge insertion position will be explained.

That is, a locking member 42 is rotatably attached to the mounting member 30 by means of a support shaft 41. A toothed portion 43 is formed at one end of the locking member 42, and this toothed portion 43 is engaged with the intermediate gear 27. Therefore, the lock member 42 is configured to be rotated in conjunction with the opening and closing of the pair of opening/closing lids 20 and 21. Further, a lock portion 44 consisting of a substantially U-shaped notch is formed at the other end of the lock member 42. Note that a slope 46 is formed at the tip of the other end of the lock member 42 on the lock portion 44 side.
On the other hand, at the upper part of the front end portion 4a of the carrier 4, a locked portion 45 consisting of a pin is provided. By rotating the locking member 42, the locking portion 44 can engage and disengage from the locked portion 45 of the carrier 4. Note that the support shaft 4 of the lock member 42
1 and the locked portion 45 of the carrier 4 are arranged on a straight line Q (FIG. 1A) parallel to the moving direction of the carrier 4.

Next, the operation of the carrier lock mechanism 40 constructed as described above will be explained.

First, as shown in FIG. 1A, before the disk cartridge 11 is inserted into the cartridge insertion slot 3, the pair of opening/closing lids 20 and 21 are completely closed as described above. intermediate gear 2
7, the locking member 42 is rotated in the direction of arrow d, and its locking portion 44 is engaged with a locked portion 45 of the carrier 4. That is, the carrier 4 is securely locked at the cartridge insertion position.
Therefore, even if vibrations, shocks, etc. are applied to the carrier 4, the carrier 4 will never move unexpectedly in the cartridge retraction direction (arrow a direction), and the carrier 4 will never move unexpectedly. Accidents in which the vehicle is damaged by impact loads in its rest position are also completely prevented. Note that since the support shaft 41 of the locking member 42 and the locked portion 45 of the carrier 4 are arranged on a straight line Q parallel to the moving direction of the carrier 4, the impact load applied to the carrier 4 is absorbed by the locking member. It will definitely be accepted.

Next, when the disk cartridge 11 is inserted into the cartridge insertion slot 3 from the front end 11a side, the pair of opening/closing lids 2 are opened as described above in FIG. 1B.
0 and 21 are pushed open, the locking member 42 is rotated in the direction of arrow d' via the intermediate gear 27, and the locking portion 44 is separated from the locked portion 45 of the carrier 4. As a result, the carrier 4 is released from the lock at the cartridge insertion position, and the carrier 4 is inserted into the disk cartridge 11.
The retracting operation becomes possible. Therefore, the carrier 4 is reliably unlocked in conjunction with the opening of the pair of opening/closing lids 20 and 21 when the disk cartridge 11 is inserted into the cartridge insertion slot 3.
There is no malfunction such as the carrier 4 remaining locked even when the disk cartridge 11 is inserted.

Note that when the disk cartridge 1 is inserted into the cartridge insertion slot 3, the carrier 4 is securely locked at the cartridge insertion position, so the disk cartridge 11 is inserted into the carrier 4.
This ensures that the cartridge is held at the insertion position. Therefore, there is no malfunction such as the disc cartridge 11 being pulled in while the carrier 4 is incompletely holding the disc cartridge 11, and the disc cartridge 11 not being correctly mounted at the cartridge mounting position.

Next, after carrier 4 is unlocked,
A pair of lids 2 that can be opened and closed by the retracting action of the carrier 4
In conjunction with the complete opening of the lid 0 and 21 and the subsequent complete closing of the lid, the locking member 42 is rotated in the direction of the arrow d' as shown in FIG. 1C, and then in the direction of the arrow d as shown in FIG. rotated in the direction.

Next, when the carrier 4 is moved back in the direction of arrow a' during the ejection operation of the disk cartridge 11, the first
When the pair of opening/closing lids 20 and 21 are opened as explained in FIG. C, the locking member 42 is rotated in the direction of arrow d' via the intermediate gear 27. When the ejection operation of the disk cartridge 11 approaches the completion stage, the locking member 42 is rotated in the direction of arrow d by closing the pair of opening/closing lids 20 and 21 as shown in FIG. 1B. . Thereafter, when the backward movement of the carrier 4 is stopped and the disk cartridge 11 is removed from the cartridge insertion slot 3, a pair of opening/closing lids 20, 2 are opened as shown in FIG. 1A.
1 is completely closed, the lock member 4
2 is completely rotated in the direction of arrow d, and its locking portion 44 is again engaged with the locked portion 45 of the carrier 4. That is, the carrier 4 is reliably locked at the cartridge insertion position.

As described above, the opening/closing lid opening/closing mechanism 22 allows the pair of opening/closing lids 20,
21 is opened and closed, and these pair of opening/closing lids 2
The carrier lock mechanism 4 is linked to the opening and closing of 0 and 21.
Since the locking member 42 of No. 0 is rotated, the locking member 42 when opening and closing the pair of opening/closing lids 20 and 21
The locking and unlocking operations of the carrier 4 are extremely reliable.

Note that when the carrier 4 returns to the cartridge insertion position, the locked portion 45 of the carrier 4 is brought into contact with the slope 46 of the locking member 42, and the slope 46
It is also possible to rotate the locking member 42 in the direction of the arrow d' in FIG. 1B by the guiding action of the locking member 42, thereby engaging the locking portion 44 of the locking member 42 with the locked pin 45 as shown in FIG. 1A. It is.

Although one embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and various effective changes can be made based on the technical idea of the present invention.

For example, in the embodiment, the opening/closing lid opening/closing mechanism was constructed with a guide block provided on the rack plate of the carrier and an interlocking rod that is regulated by the guide block and interlocks with the other. Can be changed to a valid configuration.

Furthermore, the present invention is not limited to a disk player using a disk cartridge that stores a draw disk, but can be applied to a disk player that uses a disk cartridge for various purposes that stores various types of recording and/or playback disks. .

〔Effect of the invention〕

As described above, in the present invention, since the pair of opening/closing lids are opened in a double-door shape, the extra stroke required for opening and closing the pair of opening/closing lids inside the cartridge insertion slot can be made very small. can be brought sufficiently close to the cartridge insertion port side. Therefore, the disk cartridge can be inserted into and removed from the carrier very reliably and smoothly, and is very easy to operate.

Also, the start of the retraction operation of the disk cartridge by the carrier, the completion of the retraction operation,
Since the pair of opening/closing lids are forcibly opened/closed in conjunction with the discharge operation, the opening/closing operations of the pair of opening/closing lids and the timing thereof are extremely reliable, and reliability is significantly improved.

In addition, especially when a pair of opening/closing lids is opened and closed by a guide block that moves with the reciprocating motion of the carrier and an interlocking rod that is regulated by this guide block and interlocks as in the embodiment, the opening/closing lid opening/closing mechanism is The structure of is extremely simple.

[Brief explanation of the drawing]

The drawings show an embodiment of a disk player to which the present invention is applied, and are shown in FIGS. 1A to 1D.
The figure is a side view of the main parts to explain the opening/closing operation of the pair of opening/closing lids and the locking/unlocking operation of the carrier as the carrier draws in and ejects the disk cartridge, and FIG. 2 shows the pair of opening/closing lids. , a perspective view of the opening/closing lid opening/closing mechanism and the carrier lock mechanism, and FIGS. 3A and 3B are schematic cross-sectional views of the disk player for explaining the retracting and ejecting operations of the disk cartridge by the carrier. In addition, in the symbols used in the drawings, 1...disk player, 3...cartridge insertion slot, 4
...Carrier, 11...Disk cartridge,
20, 21... Opening/closing lid, 22... Opening/closing lid opening/closing mechanism, 32... Interlocking rod, 33... Guide block.

Claims (1)

[Claims] 1. A carrier configured to be able to reciprocate between a cartridge insertion position and a cartridge mounting position is provided, and a disk cartridge inserted from a cartridge insertion opening is moved from the cartridge insertion position to the cartridge mounting position by the forward movement of the carrier. In the disk player, the disc player is configured to be drawn in and installed, and to eject the disk cartridge from the cartridge installation position to the cartridge insertion position by the backward movement of the carrier, the disk cartridge being inserted into the cartridge insertion opening. Therefore, a pair of opening/closing lids configured to be pushed open in a double-door shape are provided,
In conjunction with the start of the retracting operation of the disk cartridge by the carrier after the disk cartridge has been inserted, the pair of opening/closing lids are forcibly opened and the disk cartridge is retracted into the cartridge insertion slot. The pair of opening/closing lids are forcibly closed in conjunction with the completion of the operation, and the pair of opening/closing lids are closed in conjunction with the ejecting operation of the disc cartridge from the cartridge mounting position to the cartridge insertion position by the carrier. A disk player characterized by being provided with an opening/closing lid opening/closing mechanism configured to forcibly open the lid.