JPS63149864A - Disk cartridge driving device - Google Patents

Abstract

PURPOSE:To eliminate damage and abrasion between a cartridge and an arm coupling and to improve the reliability by engaging a notch of the side face and an engaging part of the tip of a turnable lock body at the end time for inserting the cartridge. CONSTITUTION:The tip of a cartridge 100 inserted into a housing comes into contact with a driven part 8, a lock body 2 turns clockwise centering around a pin 11 against a spring 14, an engaging part 13 of its tip is engaged to a notch 100a of the side face of the cartridge, a shutter is also opened, and in this state, even if a hand is set free, the cartridge is not discharged. Simultaneously, by an engagement of a lock body shaft 22 and a lever 5, a sensor 4 detects a complete insertion, the housing 1 descends and a disk becomes an operating state. Accordingly, since its is unnecessary to allow a cartridge discharging arm to has a detaining function, abrasion and damage of an arm coupling part and the cartridge are eliminated and the reliability can be improved.

Description

[Detailed Description of the Invention] [Summary] The present invention is directed to a drive device using a disc cartridge such as an optical disc cartridge, in which the cartridge is manually inserted into a housing when a disc is loaded by a so-called soft loading method driven by a motor. The purpose of this is to solve the problem of the cartridge being pushed back when the hand is released immediately after the initial operation, which inhibits the soft loading operation. The purpose is achieved by automatically holding the cartridge.

[Industrial application field]

The present invention relates to a disk cartridge drive device in which a disk such as an optical disk or a magnetic disk is housed in a cartridge, and more particularly, the present invention relates to a disk cartridge drive device in which a disk such as an optical disk or a magnetic disk is housed in a cartridge. The present invention relates to a soft-loading disk cartridge drive device that can reduce noise.

A type of disk cartridge drive device that uses a motor drive to move the cartridge back and forth within the housing has less pushing resistance and requires less pushing, but a simple type that does not use a motor to move the cartridge in the rear direction If the cartridge is manually pushed in and released before the motor for raising and lowering the housing starts operating, the cartridge will be ejected by the ejecting means using a spring, resulting in malfunction and damage to the cartridge ridge. Therefore, there is a need for a device with high operational reliability that can resolve such malfunctions.

[Conventional technology]

FIG. 10 shows a cartridge ejection means of a conventional disk cartridge drive device. In the figure, 100 is a cartridge that includes a shutter 101 for protecting the disc and contains a disc therein, and 102 is a cartridge ejecting means. The cartridge ejection means 102 includes a pair of arms 103A, 103.
B, and springs 104A and 104B for arm return.

The arms 103A and 103B are rotatably provided in a housing (not shown), and are supported by springs 104A and 103B.
4B has arms 103A and 103B facing the enemy in the directions of arrows C and D.

Now, as shown in FIG. 10(a), when the cartridge 100 is inserted into the housing positioned at the raised position with the shutter 101 closed by the biasing force of the spring 105, the front end surface of the cartridge 100 is The arms 103A, 103B are engaged with the retaining parts 106A, 106B, and the arms 103A, 103B are connected to the springs 104A, 10.
Insertion progresses while being rotated in the directions of arrows C' and D' against the urging force of 4B. When inserting with surface B facing up as shown in this figure, after insertion has progressed to a certain extent, the retaining part 1
06B engages with a retaining hole 107 provided in the shutter 101, and then the shutter 101 is opened in the direction of the arrow E against the biasing force of the spring 105, and the insertion progresses. In this case, each retaining part has the shape shown in the figure, and the engaging part 106B
The shutter opens while it enters the back side of the plate-like tip 108 of the shutter 101. Arm 103A is
It is provided to be shifted downward from the arm 103B, and rotates in the force direction of arrow C' when the distal end surface of the arm 103B engages with the retaining portion 106A when the cartridge is inserted. Cartridge 1
00 is fully inserted, each arm 103A, 103
B is stopped by a stop mechanism (not shown), and the shutter 10
1 is completely opened as shown in FIG. 10(b). In this state, the cartridge 100 is locked in the ejection direction by the retaining portion 106B, so the cartridge 100
Even if you release the hand that inserted the cartridge 100, the cartridge 100 will not be ejected.

Thereafter, the housing is lowered by motor drive and positioned at the lowered position, and the cartridge 100 is installed in an operating state. In this state, since the shutter 101 is open, read and write processing to the disk is possible.

When the cartridge 100 is to be ejected after the processing is completed, the housing is raised by motor drive and positioned at the raised position, and then the arm locking by the arm stop mechanism is released. As a result, the force trichine 100 becomes the spring 104
It is discharged by the urging forces of A and 104B, and the shutter 101 is closed at the same time.

When the cartridge 100 is inserted with the surface A facing up, contrary to the above, the arm 103A replaces the arm 103B and plays the role of opening the shutter and locking the cartridge.

[Problem that the invention seeks to solve]

In the conventional structure as described above, the shutter is opened with the retaining part of the arm inserted into the back side of the plate-shaped tip of the shutter.
The retaining part is where the locking takes place.

There is a problem in that the plate-like tip of the shirt shirt is worn out and damaged, which reduces the locking function and impairs operational reliability.

[Means for solving problems]

The present invention provides a disk cartridge drive device that can solve the above-mentioned problems, and as a means for that purpose, the present invention provides a disk cartridge drive device that stores a disk and has a notch on the side that can be inserted and removed. The housing is equipped with a housing that can be moved up and down and has a roller, and a diagonal cam groove that is connected to the roller through a slot.
a sliding body positioned in a raised position where a cartridge can be inserted and removed and a lowered position where a disk can be loaded; an arm that is energized by a first energizing means; an arm rotatably supported by the housing and energized in one rotational direction by a second energizing means; a locking body that moves together against the urging force of the second urging means, and a locking means that is provided on the housing and locks the locking body when the cartridge insertion is completed;
a release means for releasing the locking of the locking body by the locking means when the housing is raised and positioned at the raised position; A structure is adopted in which a retaining portion is provided to hold the cartridge when insertion is completed.

[Effect]

The present invention is constructed as described above, and includes the insertion of a cartridge,
Loading and discharging are performed as follows.

First, the cartridge is inserted into the housing in the raised position to a predetermined position. By this insertion, the arm rotates against the biasing force of the first biasing means, and the lock body also rotates against the biasing force of the first biasing means.
move against the force of the force of force. When the cartridge is completely inserted, the engaging part of the lock body engages with the notch of the cartridge, and the lock body is locked by the locking means, so that the cartridge is held in the fully inserted state and the cartridge is prevented from being ejected. The state is maintained.

After that, when the sliding body is moved to position the housing in the lowered position, the cartridge is installed, and reading and writing to the storage disk becomes possible.

When ejecting the cartridge, the sliding body is moved in the opposite direction to that described above. As a result, the housing is positioned at the raised position, and the release means releases the locking member from the locking member. Then, the engaging portion of the lock body disengages from the notch, and the cartridge is ejected by the arm.

〔Example〕

The present invention will now be described in detail with reference to FIGS. 1 to 9.

A first embodiment is shown in FIGS. 1 to 5.

FIG. 1 is a front view showing the main part configuration of a disk cartridge drive device according to the present invention, FIG. 1(a) shows an initial state of cartridge insertion, and FIG. 1(b) shows a state of completed cartridge insertion. There is.

In FIG. 1, 100 is a cartridge similar to the conventional one;
1 is a housing, 2 is a lock body, 3 is a lock groove (locking means), 4 is a sensor, and 5 is a sensor lever. As shown in detail in FIG. 2, the cartridge 100 includes a shutter 101 that can be opened and closed, and has concave cutouts 100a on both sides.

The housing 1 is provided in a chassis 6 of the device so as to be movable up and down in a direction perpendicular to the paper plane of FIG.
is provided on the side. The rollers 7 engage in dotted line slots 18 formed in the chassis 6, thereby guiding the raising and lowering of the housing 1.

The locking body 2 integrally includes a locked portion 8, a locking portion 9, and a spring plate 10, and is rotatable by being engaged with a pin 11 provided in the housing 1 through an elongated hole 12. An engaging portion 13 is provided at the tip of the spring plate 10. This lock plate 2 is biased clockwise in FIG. 1 by a spring 14.

A lock groove 3 is provided in the housing 1, and the lock portion 9 of the lock body 2 is engaged with this lock groove 3.

The sensor 4 and the sensor lever 5 are provided within the housing 1.

The above-mentioned chassis 6 is provided with a sliding body 15 shown in FIGS. 3 and 4 so as to be movable in the left-right direction (forward and backward direction). (Release means) 17.

The diagonal cam groove 16 is slot-connected to the roller 7 of the housing 1. The sliding body 15 is driven by a drive source (not shown) at a predetermined time to be positioned at a retracted position shown by a solid line and an advanced position shown by a chain line in FIG. 3, respectively.

The operation of the disk cartridge drive device having such a configuration is as follows.

When the sliding body 15 is located in the retracted position, the housing 1 is positioned in the raised position, and in this state, the housing l
Cartridge insertion begins.

When the cartridge 100 is inserted to some extent, the distal end surface of the cartridge 100 engages with the rotatable arms 1.9A, 19B provided in the housing 1, as shown in FIG. (First boosting means) 20
Insertion proceeds while rotating in the direction of the arrow against the urging forces of A and 20B.

In this case, the retaining portion 21B of the arm 19B is connected to the shutter 101.
The arm 19A engages with the engagement hole 107 to open the shutter 101, and the engagement portion 21A of the arm 19A engages with the distal end surface of the shutter 101. In the present invention, since the cartridge locking means is separately provided as described later, the engaging portions 21A and 21B only need to engage with the engaging hole 107, and the plate-shaped tip of the shutter 101 is It does not get into the back side of the parts, which prevents wear and damage that was a problem in the past.

At the end of cartridge insertion, the cartridge 10
The tip of the lock body 2 engages with the driven portion 8, and insertion proceeds while the lock body 2 is moved to the left in FIG. 1 against the biasing force of the spring 14. When the cartridge 100 is completely inserted, the retaining portion 13 is inserted into the notch 1 as shown in FIG. 1(b).
00a, the lock portion 9 engages with the wide portion 3a of the lock groove 3, and the shutter 101 is also completely opened. In this state, the cartridge 100 is held by the engagement described above and locked in the ejection direction (first right direction), so it will not be ejected even if you release your hand. That is,
The cartridge ejection prevention state is maintained. When this insertion is completed, the lock body shaft 22 of the lock body 2 engages with the sensor lever 5, and the sensor lever 5 is moved counterclockwise as shown in FIG. 1(b).
Rotate it until it reaches the position. As a result, the sensor lever 5 is disengaged from the sensor 4, and the sensor 4 detects that the cartridge 100 is completely inserted.

This detection signal activates the drive source of the sliding body 15, and the sliding body 15 moves forward by a predetermined amount (moves to the right in the figure) from the retreated position indicated by the solid line in FIG. 3 to the advanced position indicated by the chain line. This results in
Housing 1 engages with oblique cam groove 16 via roller 7
is lowered to the lowered position, and during this lowering the roller 7 is guided into the slot 18.

When the housing 1 is positioned in the lowered position, the cartridge 100 is installed in the operating position, and reading and writing operations on the storage disk are possible.

When the cartridge 100 is to be ejected upon completion of the process, the drive source is activated by a button operation or the like to retract the sliding body 15 to its original retracted position. As a result, housing 1
is raised and positioned at the raised position following the reverse course to that described above. At the latter stage of this operation, as shown in FIG. 4, the release cam 17 attached to the sliding body 15 engages with the lock body shaft 22 to rotate the lock body 2 in the counterclockwise direction in FIG. Figure 5 shows this bonding situation, and shows the sliding body 1
When the release cam 17 moves to the position shown by the solid line in the latter stage of the backward movement in step 5, the release cam 17 starts to engage with the lock body shaft 22 and rotates the lock body 2 in the direction of the arrow. As a result, the lock part 9 is disengaged from the wide part 3a of the lock groove 3 and is released from locking in the ejection direction, and the retaining part 13
is removed from the notch 100a. Therefore, the cartridge 100 is ejected via the arms 19A and 19B due to the energy stored in the springs 20A and 20B, and the locking body 2 is urged by the spring 14 and returns to its original position as shown in FIG. 1(a). do. When the sliding body 15 reaches the retreat position,
The release cam 17 is located at the position indicated by the chain line in FIG. Note that the release cam 17 is provided so that it can rotate clockwise from the state shown in FIG.
2, it rotates clockwise and does not interfere with cartridge insertion. After the lock shaft 22 has passed, it is energized by a spring (not shown) and returns to the position shown in FIG. 5.

In this way, when the lock body 2 returns due to the rise of the housing 1, the sensor lever 5 is disengaged from the lock body shaft 22.
It is energized by a return spring (not shown) and returns to its original position as shown in FIG. 1(a).

A second embodiment is shown in FIGS. 6 to 8.

6 is a plan view showing the configuration of the main parts of the disk cartridge drive device, and FIG. 7 is a side view of the main parts of FIG.
32 is a locking body, 32 is a convex portion (locking means), and 33 is a release cam (releasing means).

The lock body 31 is made of rigid resin, and includes a retaining part 34,
It includes a spring section 35, a driven section 36, a finger 37, and a sensor section 38. This lock body 31 is
The spring portion 35 is supported by the housing 1 via the housing 1, and the spring portion 35 is held between the housing 1 and the spring portion 35.

The convex portion 32 is fixed to the housing 1, and the release cam 33 is supported by the sliding body 15.

When the cartridge 100 is not inserted into the housing 1, the lock body 31 is in the state shown by the chain line in FIG. When the cartridge 100 is inserted into the housing 1 in this state, the insertion progresses while rotating the arm as in the previous example, and in the latter stage of insertion, the tip of the cartridge 100 engages with the driven part 36 and the lock body 31 is moved as shown in the solid line. Rotate it until it reaches the position. In this state, the engaging portion 34 of the lock body 31
is engaged with the notch 100a of the cartridge, and the lock portion 40 at the tip of the finger 37 is engaged with the convex portion 32, so that the lock body 31 is held in the solid line state.

That is, the cartridge ejection prevention state is maintained. This engagement is performed by elastically deforming the cantilevered finger 37 in a direction perpendicular to the plane of the paper of FIG. Due to this rotation of the lock body 31, the sensor section 38 enters into the sensor, and the sensor 4 detects the completion of cartridge insertion, and as a result,
As in the previous example, the sliding body 15 advances to the forward position and the housing 1 is positioned at the lowered position.

When the cartridge is ejected, the housing 1 is raised by retracting the sliding body 15 to the retracted position as in the previous example. When the housing 1 is positioned at the raised position, the protrusion 3
The release cam 33 releases the locking of the lock body 31 by the release cam 33. Next, the release procedure will be explained with reference to FIG.

FIG. 8(a) shows a state in which the sliding body is positioned at the forward position and the housing 1 is positioned at the lowered position. It is energized and locked to the stopper 41. From this state, when the sliding body begins to retreat to the left in FIG. 8 toward the retreated position, the release cam 33 also moves together with it, and the housing 1 begins to rise. At the end of this upward movement of the housing 1, the release cam 33 releases the lock portion 4.
0 is pushed up to separate from the convex portion 32 as shown in FIG. 8(b). Therefore, the lock body 31 is rotated back to its original position by the energy stored in the spring portion 35 when the cartridge is inserted, and this rotation causes the lock body 31 to rotate toward the original position.
The cartridge 100 released from the locking mechanism 4 is ejected by the biasing force of the spring biasing the arm. Figure 8 (c
) indicates the state in which the sliding body has completed retraction.

In the case of this example as well, it is possible to achieve the same effects as in the previous example.

FIG. 9 shows a third embodiment.

FIG. 9 is a plan view showing the main parts of the disk cartridge drive device. In the figure, 51 is a locking body, and 52 is a release type solenoid (locking and releasing means) equipped with a permanent magnet.

The lock body 51 includes an engaging portion 53 and a driven portion 54,
It is biased counterclockwise by a spring 55.

The solenoid 52 is attached to the housing 1 together with the sensor 4.

The lock body 51 is connected to the driven portion 54 at the end of cartridge insertion.
engages with the tip of the cartridge 100 and rotates against the urging force of the spring 55 from the position indicated by the chain line to the position indicated by the solid line (cartridge insertion completion state), and the retaining portion 53 engages with the notch 100a. , the lock portion 56 comes into contact with the solenoid 52 and is attracted and held by a permanent magnet built into the solenoid. In this state, the detection part 5 of the lock body 51
7 is removed from the sensor 4, the sensor 4 detects the cartridge insertion completion state, and as a result, the sliding body is driven to the forward position, the housing 1 is positioned to the lowered position, and the cartridge 100 is installed in the operating position. Ru. Note that when inserting the cartridge, the insertion proceeds while the arm is rotated against the biasing force of the spring, as in the previous example.

When the housing is positioned at the raised position by the retracting movement of the sliding member to the retracted position when the cartridge is ejected, the solenoid 52 is energized and the solenoid 52 releases the locking member 51 .

Therefore, the locking body 51 rotates while moving the cartridge 100 to the right to the position indicated by the chain line by the biasing force of the spring 55, and during this period, the retaining portion 53 separates from the notch 100a. In this state, the cartridge 100 is ejected by the biasing force of the spring that biases the arm.

In the case of this example as well, it is possible to achieve the same effects as in the previous example.

〔Effect of the invention〕

As described above, according to the present invention, the cartridge inserted into the housing is locked by the retaining part of the locking body, and it is necessary to provide the cartridge ejection arm with a cartridge locking function. This reduces the wear and tear of the arm joint and cartridge, which were problems in the past.
Damage can be eliminated and reliability can be ensured.

[Brief explanation of the drawing]

1(a) and 1(b) are plan views showing the configuration of main parts of a disk cartridge drive device according to a first embodiment of the present invention, FIG. 2 is an explanatory view of the operation of the cartridge ejection arm, and FIG. 3 Figure 4 is a front view showing the action of the release cam, Figure 5 is a plan view showing the action of the release cam, and Figure 6 is a diagram showing the action of the release cam. FIG. 7 is a side view of the main parts of a disk cartridge drive device according to a second embodiment of the invention; FIG. 8 is a side view of the main parts of a disk cartridge drive device according to a second embodiment of the invention; FIG. FIG. 9 is a plan view showing the main structure of a disk cartridge drive device according to a third embodiment of the present invention; FIG. 10 is a perspective view showing a cartridge ejecting means of a conventional disk cartridge drive device. In the figure, ■ is the housing, 2.31.51 is the lock body, 3 is the lock groove (locking means), 7 is the roller, 9.40.56 is the lock part, 13.34.53 is the retaining part , 14.55 spring (second condition means), 15 sliding body, 16 oblique cam groove, 17.33 release cam (release means), 18 slot, 19A, 19B arms, 20A, 20B Spring (first sleeping means), 32 is a convex portion (locking means), 35 is a spring portion (second sleeping means), 52 is a release type solenoid (locking and releasing means), 100
is a cartridge, and 100a is a notch.

Claims (1)

[Claims] A cartridge (100) containing a disc and having a notch (100a) on the side can be inserted and removed, and a roller (100) is provided on the side.
7), and a diagonal cam groove (16) that is slot-connected to the roller, and is driven by a drive source to move forward and backward, and this forward and backward movement moves the housing into the cartridge. a sliding body (15) positioned in a raised position where insertion and removal is possible and a lowered position where a disk can be loaded; and a sliding body (15) that is rotatably supported by the housing and is engageable with the tip of a cartridge inserted and configured in a direction for ejecting the cartridge. arms (19A), (19B) which are energized by first energizing means (20A), (20B), and second energizing means (14), (14) rotatably supported by the housing; 35), a locking body (2) that is biased in one rotation direction by (55), engages with the tip of the cartridge inserted into the housing, and moves against the biasing force of the second biasing means; , (31), (51), and locking means (3), (32), (
52), and release means (17), (33), and (52) for releasing the locking of the locking body by the locking means when the housing is raised and positioned at the raised position, The lock body includes an engaging portion (13) that engages with the notch at the end of cartridge insertion to hold the cartridge in a completed insertion state.
34) and (53).