JP3857943B2 - Disc cartridge loading device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disk recording / reproducing apparatus for recording and / or reproducing signals for a disk cartridge containing a disk-shaped recording medium such as a magneto-optical disk, and the disk cartridge is moved from the cartridge ejection position to the recording / reproduction position. The present invention relates to a disk cartridge loading apparatus that moves and moves a magnetic head closer to a disk cartridge at a recording / reproducing position.
[0002]
[Prior art]
Conventionally, in this type of disk cartridge loading apparatus, a disk cartridge inserted in a cartridge holder is first transported in a substantially horizontal direction in the cartridge holder, and then the cartridge holder is lowered in a substantially vertical direction to signal the disk cartridge. Installation at a recording / reproducing position is performed.
In the disk cartridge loading apparatus, a first slide member that reciprocates the disk cartridge in the cartridge holder and a second slide member that moves the cartridge holder or the base chassis up and down and moves the magnetic head up and down are provided. First, the driving force is transmitted to the first slide member, and the disk cartridge in the cartridge holder is moved from the cartridge ejection position to the cartridge retracting position. Then, the driving force of the motor is transmitted to the second slide member, and the disk in the cartridge holder is transferred. The cartridge is moved from the cartridge drawing position to the signal recording / reproducing position, and the magnetic head is brought close to the disk cartridge at the signal recording / reproducing position.
[0003]
[Problems to be solved by the invention]
However, the conventional disk cartridge loading apparatus has a problem in that the mechanism is complicated because it is necessary to switch the power transmission path from driving the first slide member to driving the second slide member.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a disk cartridge loading device capable of moving a disk cartridge from a cartridge discharge position to a recording / reproducing position with a simpler mechanism than before.
[0004]
[Means for solving the problems]
The disk cartridge loading device according to the present invention comprises a pinion (72) rotated by a motor (71), and a slide member (2) formed with a rack (24) meshing with the pinion (72). The rack (24) has a straight portion (25) extending on a straight line and an arc portion (26) extending on an arc line.
The pinion (72) meshes with the linear part (25) of the rack (24) and reciprocates the slide member (2), thereby reciprocating the disk cartridge (10) between the cartridge ejection position and the cartridge retracting position. .
Further, the pinion (72) meshes with the arc portion (26) of the rack (24) and rotates the slide member (2), so that the disk cartridge (10) is moved between the cartridge retracted position and the recording / reproducing position. While reciprocating, the magnetic head (61) is moved closer to and away from the disk cartridge (10) at the recording / reproducing position.
[0005]
In the disk cartridge loading device of the present invention, in the state where the disk cartridge (10) is installed at the cartridge discharge position, the pinion (72) is connected to the arc part (26) of the linear part (25) of the rack (24). Is engaged with the opposite end, and when the motor (71) starts rotating from this state, the pinion (72) drives the rack (24), so that the slide member (2) moves in one direction. To do. By the movement of the slide member (2), the disk cartridge (10) is conveyed from the cartridge discharge position to the cartridge drawing position.
Next, the pinion (72) meshes with the arc part (26) of the rack (24), and the rack (24) drives the arc part (26), whereby the slide member (2) rotates in one direction. As the slide member (2) rotates, the disk cartridge (10) moves from the cartridge retracted position to the recording / reproducing position, and the magnetic head (61) with respect to the disk cartridge (10) at the recording / reproducing position. Approaches.
[0006]
The disk cartridge loading device according to the present invention has a more specific configuration,
A cartridge holder mechanism having a cartridge holder (3) to receive a disk cartridge (10) and reciprocating the disk cartridge (10) between a cartridge retracting position and a recording / reproducing position by reciprocating the cartridge holder (3) When,
A cartridge transport mechanism for reciprocally moving the disk cartridge (10) in the cartridge holder (3) between the cartridge discharge position and the cartridge pull-in position;
A magnetic head mechanism for moving the magnetic head (61) closer to and away from the disk cartridge (10) at the recording / reproducing position;
A pinion (72) rotated by a motor (71) and a slide member (2) formed with a rack (24) meshing with the pinion (72) are provided. The rack (24) is arranged on a straight line. It is comprised from the drive mechanism which has the linear part (25) extended, and the circular arc part (26) extended on a circular arc line.
When the pinion (72) of the driving mechanism meshes with the linear portion (25) of the rack (24) and moves the slide member (2), the cartridge transport mechanism is driven by the slide member (2), and the pinion ( 72) meshes with the circular arc portion (26) of the rack (24) to rotate the slide member (2), whereby the cartridge holder mechanism and the magnetic head mechanism operate in conjunction with the rotation.
[0007]
The cartridge transport mechanism includes a cartridge pull-in lever (8) that engages with the slide member (2) of the driving mechanism and engages with the disk cartridge (10) in the cartridge holder (3). The driving force is transmitted to the disk cartridge (10) through the cartridge pulling lever (8).
As a result, the disk cartridge (10) moves from the cartridge ejection position to the cartridge drawing position.
[0008]
The cartridge holder mechanism includes a spring means for pressing the cartridge holder (3) toward the recording / reproducing position, and slides in a state where the pinion (72) of the driving mechanism is engaged with the linear portion (25) of the rack (24). The member (2) lifts the cartridge holder (3) against the spring means, and the slide member (2) is in the state where the pinion (72) is engaged with the arc portion (26) of the rack (24). Allows the cartridge holder (3) to be pressed.
As a result, the disk cartridge (10) in the cartridge holder (3) is moved from the cartridge retracted position to the recording / reproducing position by the urging force of the spring means, and is pressed and held at the recording / reproducing position.
[0009]
The magnetic head mechanism includes spring means for pressing the magnetic head (61) toward the disk cartridge (10) at the recording / reproducing position, and the pinion (72) of the driving mechanism is connected to the linear portion (25) of the rack (24). In the engaged state, the slide member (2) lifts the magnetic head (61) against the spring means, and the pinion (72) is engaged with the arc portion (26) of the rack (24), 2) allows the magnetic head (61) to be pressed by the spring means. Thus, the magnetic head (61) is urged toward the disk cartridge (10) from a position separated from the disk cartridge (10), and is pressed against the disk surface of the disk cartridge (10).
[0010]
【The invention's effect】
According to the disk cartridge loading device of the present invention, after the disk cartridge (10) is moved from the cartridge discharge position to the cartridge retracted position by the single slide member, the disk cartridge (10) is recorded from the cartridge retracted position. The magnetic head (61) can be moved close to the recording / reproducing position and the disk cartridge (10) at the recording / reproducing position, so that the above operation is realized by two slide members as in the prior art. This simplifies the mechanism.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
Overall configuration A disk cartridge loading apparatus according to the present invention comprises a cartridge holder (3) for housing a disk cartridge (not shown) on a main chassis (1) as shown in FIG. On the upper surface of (3), a holder lifting lever (4) is installed.
Further, as shown in FIG. 1, a pickup device (5) is disposed on the bottom plate portion (12) of the main chassis (1) so as to be reciprocally movable. The pickup device (5) is configured by mounting an optical pickup (51) on a base (52) as shown in FIG.
[0012]
Further, as shown in FIG. 1, a magnetic head device (6) is rotatably disposed on the main body chassis (1), and the magnetic head (61) provided at the tip portion is placed in the cartridge holder (3). It is possible to press the disk surface of a disk cartridge (not shown).
Furthermore, a slide member (2) is installed on the left side plate (11) of the main chassis (1), and the slide member (2) is reciprocated by driving a motor (not shown). The disk cartridge can be loaded.
[0013]
Incidentally, the pickup device (5) and the magnetic head device (6) integrally move back and forth in the radial direction of the disk, and record and reproduce signals on the disk of the disk cartridge.
[0014]
Cartridge holder mechanism As shown in FIG. 1, the main body chassis (1) is constructed by projecting a pair of side plate portions (11) and (11) on both sides of the bottom plate portion (12). A cartridge holder (3) is supported between the side plate portions (11) and (11) of 1) so as to be movable up and down. The cartridge holder (3) is provided with a spring (30) on its upper surface as shown in FIG. 4, and is pressed downward by the urging force of the spring (30).
[0015]
As shown in FIG. 6, the holder elevating lever (4) has support shafts (43) and (43) projecting from both front sides of the lever body (41), and the support shafts (43) and (43) are shown in FIG. As shown in FIG. 1, it is pivotally supported on both side plate portions (11) and (11) of the main chassis (1). In addition, as shown in FIG. 6, a pair of support shafts (45) and (45) project from the holder elevating lever (4) behind the lever body (41), and the support shafts (45) and (45) As shown in FIG. 9, it is pivotally supported by a pair of bearing portions (31) (31) provided on the upper surface of the cartridge holder (3). Further, the holder elevating lever (4) is formed with an L-shaped protrusion (42) as shown in FIG. The tip of the projecting portion (42) faces the upper end surface (21) of the slide member (2) as shown in FIG.
[0016]
In the cartridge holder mechanism, when the holder elevating lever (4) rotates about the support shaft (43) (43), the cartridge holder (3) moves up and down along with the rotation, and the cartridge holder (3) The disc cartridge inside moves back and forth between the cartridge retracted position and the recording / reproducing position.
[0017]
Cartridge transport mechanism A cartridge pull-in lever (8) shown in FIGS. 8 (a), (b) and (c) is attached to the side surface of the cartridge holder (3). The cartridge pull-in lever (8) has a pivot (85) as a rotation center at the rear end of the base (80), and the tip of the elastic piece (83) protruding from the base (80) is connected to the cartridge holder ( By making sliding contact with the end of 3), a clockwise rotational biasing force is applied to the base (80).
The cartridge pull-in lever (8) includes a protrusion (84) to be pressed by the front end surface of the disk cartridge, a claw piece (82) to be engaged with a recess formed on the side surface of the disk cartridge, An arm (81) to be engaged with the slide member (2) is projected.
Furthermore, a cam follower (86) is provided on the cartridge pull-in lever (8) so as to be engaged with a cam groove (not shown) to control the posture of the base (80).
[0018]
In the cartridge transport mechanism, when a disc cartridge is inserted into the cartridge holder (3), the front end surface of the disc cartridge comes into contact with the protruding piece (84) of the cartridge pull-in lever (8) and the side surface of the disc cartridge is The claw piece (82) is engaged with the recess. In this state, when the cartridge pull-in lever (8) is moved back and forth, the disk cartridge in the cartridge holder (3) is reciprocated between the cartridge discharge position and the cartridge pull-in position.
[0019]
Magnetic head mechanism As shown in FIG. 1, a magnetic head elevating lever (9) is installed on both side plates (11) and (11) at the rear of the main body chassis (1). As shown in FIG. 5, the magnetic head elevating lever (9) includes an L-shaped lever portion (92), a shaft portion (91) protruding from the base end portion of the lever portion (92), and the shaft. An arm portion (93) projecting from one end of the portion (91). The magnetic head elevating lever (9) is urged to rotate clockwise by a first spring (not shown).
[0020]
As shown in FIG. 1, the magnetic head device (6) has an arm (62) projecting at the base end portion and a magnetic head (61) projecting at the distal end portion. Is urged to rotate.
The tip of the lever portion (92) of the magnetic head lifting lever (9) is opposed to the tip of the arm (62) of the magnetic head device (6), and the magnetic head lifting lever (9) is attached to the first spring. By rotating clockwise by the force, the magnetic head device (6) can be rotated counterclockwise against the bias of the second spring.
[0021]
In the magnetic head mechanism, when the magnetic head elevating lever (9) is rotated clockwise by the bias of the first spring, the magnetic head device (6) is counterclockwise against the bias of the second spring. Accordingly, the magnetic head (61) is separated from the disk cartridge. When the magnetic head elevating lever (9) rotates counterclockwise against the bias of the first spring, the magnetic head device (6) rotates clockwise by the bias of the second spring. As a result, the magnetic head (61) approaches the disk cartridge and comes into pressure contact with the disk surface.
[0022]
Driving mechanism The slide member (2) is formed in a long strip shape in the front-rear direction as shown in FIGS. 7 (a) and 7 (b), and a rack (24) is formed along the longitudinal direction thereof. . The rack (24) includes a straight line portion (25) extending along a horizontal straight line, and an arc portion (26) extending obliquely upward along a circular arc line from the front end of the straight line portion (25). .
In addition, a first pin (22) and a second pin (23) protrude from the side surface of the main body chassis (1) side of the slide member (2) at different height positions on the front and rear sides, and an upper end on the front side. A pair of projecting pieces (27) and (27) facing each other is formed on the part.
The tip of the arm (81) of the cartridge pull-in lever (8) enters between the pair of projecting pieces (27), (27) of the slide member (2) as shown in FIG. As a result, the slide member (2) and the cartridge pull-in lever (8) move together in the front-rear direction.
[0023]
On the other hand, the left side plate portion (11) of the main chassis (1) is provided with a first guide groove (13) and a second guide groove (16) having a front and rear step as shown in FIG. Yes. The first guide groove (13) includes a straight line portion (14) extending along a horizontal straight line and an arc portion (15) extending obliquely downward from the rear end of the straight line portion (14). The second guide groove (16) includes a straight portion (17) extending along a horizontal straight line, an arc portion (19) extending obliquely downward from the rear end of the straight portion (17), and a straight portion (17). And a connecting part (18) for smoothly connecting the arc part (19). Here, the arc part (19) of the second guide groove (16) extends along an arc line centering on the terminal end of the arc part (15) of the first guide groove (13).
The first pin (22) and the second pin (23) of the slide member (2) are engaged with the first guide groove (13) and the second guide groove (16) of the main body chassis (1), respectively. This guides the reciprocating movement (horizontal movement and rotation) of the slide member (2).
[0024]
A motor (71) is attached to the left side plate (11) of the main body chassis (1) as shown in FIG. 9, and the motor (71) is connected to the motor shown in FIG. In this way, it is connected to a pinion (72) attached to the side plate (11). The pinion (72) meshes with the rack (24) of the holder elevating lever (4).
Accordingly, the motor (71) is started from the state where the pinion (72) is engaged with the linear portion (25) of the rack (24) of the slide member (2) at the rear end, and the pinion (72) is rotated clockwise. When rotating, the slide member (2) is driven backward. Thereafter, the pinion (72) meshes with the arc portion (26) of the rack (24) of the slide member (2), and when the pinion (72) further rotates clockwise in this state, the slide member (2) Is rotated in the clockwise direction.
[0025]
Cartridge loading operation In the cartridge ejecting state shown in FIG. 10 (a), the first pin (22) of the slide member (2) is a straight portion (14) of the first guide groove (13) of the main body chassis (1). ) And the second pin (23) is engaged with the second guide groove (16). The protrusion (42) of the holder lifting lever (4) is in sliding contact with the upper end surface (21) of the slide member (2), and the cartridge holder (3) is held at the rising end.
The magnetic head elevating lever (9) is rotated clockwise by the bias of the first spring, and the tip (92a) of the lever portion of the magnetic head elevating lever (9) is the magnetic head device (6). The arm (62) is under pressure. Accordingly, the magnetic head device (6) rotates counterclockwise against the bias of the second spring, and the magnetic head (61) is held at the rising end.
[0026]
When the disc cartridge (10) is inserted into the cartridge holder (3) in this state, the switch (not shown) is turned on, the motor (71) is activated, and the pinion (72) starts rotating clockwise. Then, the linear portion (25) of the rack (24) of the slide member (2) is driven. As a result, the slide member (2) moves to the rear end as shown in FIG.
When the cartridge pull-in lever (8) is driven by the movement of the slide member (2), the disk cartridge (10) in the cartridge holder (3) is moved from the cartridge discharge position along with the movement of the cartridge pull-in lever (8). It is transported horizontally to the cartridge retracting position.
[0027]
In the cartridge retracted state shown in FIG. 10 (b), the pinion (72) meshes with the boundary position (24a) between the linear portion (25) of the rack (24) and the arc portion (26) of the slide member (2). . The first pin (22) of the slide member (2) is located at the end of the straight portion (14) of the first guide groove (13) of the main chassis (1), and the second pin (23) is the second guide. It is located at the end of the straight portion (17) of the groove (16).
Further, the rear end portion (2a) of the slide member (2) is in sliding contact with the arm portion (93) of the magnetic head lifting lever (9).
[0028]
When the pinion (72) further rotates clockwise from this state, the pinion (72) meshes with the arc portion (26) of the rack (24) of the slide member (2) as shown in FIG. The first pin (22) of the slide member (2) is engaged with the arc portion (15) of the first guide groove (13) of the main body chassis (1), and the second pin (23) is the second guide. The slide member (2) engages with the arc portion (19) of the groove (16) and rotates clockwise about the first pin (22).
Even if the slide member (2) is rotated, the engagement between the projecting pieces (27) and (27) of the slide member (2) and the arm (81) of the cartridge pull-in lever (8) is not released.
[0029]
The holder elevating lever (4) in which the projecting portion (42) is in sliding contact with the upper end surface (21) of the slide member (2) is lowered by the clockwise rotation of the slide member (2). Along with this, the counterclockwise rotation is started. As the holder lifting lever (4) rotates counterclockwise, the cartridge holder (3) is lowered by the bias of the spring (30). Thereafter, the upper end surface (21) of the slide member (2) is separated from the protrusion (42) of the holder elevating lever (4). As a result, the disk cartridge (10) in the cartridge holder (3) is pressed and held at the recording / reproducing position on the main chassis (1) under the urging force of the spring (30).
As a result, the signal can be reproduced from the disk of the disk cartridge (10) by the optical pickup (51).
[0030]
Further, the rear end portion (2a) of the slide member (2) pushes up the arm portion (93) of the magnetic head elevating lever (9) to rotate the magnetic head elevating lever (9) counterclockwise. As the lever portion (92) of the magnetic head raising / lowering lever (9) is raised, the magnetic head device (6) is rotated clockwise, and the magnetic head (61) is a disk cartridge (10) in the cartridge holder (3). )
[0031]
Finally, as shown in FIG. 11 (b), the pinion (72) meshes with the end of the arc part (26) of the rack (24) of the slide member (2), and the second pin (23 of the slide member (2) (23) ) Reaches the end of the arc portion (19) of the second guide groove (16) of the main chassis (1), the magnetic head device (6) further rotates clockwise, and the magnetic head (61) The disk surface of the disk cartridge (10) at the recording / reproducing position is pressed against the disk surface.
As a result, a signal can be recorded on the disk of the disk cartridge (10) by the magnetic head (61).
[0032]
Thereafter, when the disk cartridge (10) is ejected, the motor (71) rotates reversely and the pinion (72) rotates counterclockwise. As a result, the state shown in FIG. 11 (b) is passed through the states shown in FIGS. 11 (a) and 10 (b), finally returning to the cartridge ejection state shown in FIG. 10 (a), and the disk cartridge (10) is removed. Is possible.
[0033]
As described above, according to the disk cartridge loading device of the present invention, the disk cartridge (10) is moved by driving the linear portion (25) of the rack (24) formed on the slide member (2) by the pinion (72). The disc cartridge (10) can be recorded / reproduced from the cartridge retracted position by moving from the cartridge ejection position to the cartridge retracted position, and subsequently driving the arc (26) of the rack (24) by the pinion (72). The magnetic head (61) can be moved closer to the disk cartridge (10) at the recording / reproducing position.
Therefore, compared with the case where the above operation is realized by two slide members as in the prior art, the number of parts is reduced and the switching of the power transmission path is not required, and the mechanism is simplified.
[Brief description of the drawings]
FIG. 1 is a perspective view of a disk cartridge loading apparatus according to the present invention.
FIG. 2 is a perspective view of a pickup device.
FIG. 3 is a perspective view of a main chassis.
FIG. 4 is a perspective view of a cartridge holder.
FIG. 5 is a perspective view of a magnetic head lifting lever.
FIG. 6 is a perspective view of a holder lifting lever.
FIG. 7 is a perspective view of a slide member.
FIG. 8 is a perspective view of a cartridge pull-in lever.
FIG. 9 is a perspective plan view showing a disk cartridge loading device according to the present invention.
FIG. 10 is a transparent side view showing the first half of the loading operation in the disk cartridge loading apparatus.
FIG. 11 is a perspective side view showing the latter half of the loading operation in the disk cartridge loading apparatus.
[Explanation of symbols]
(1) Main chassis
(2) Slide member
(24) Rack
(25) Straight section
(26) Arc part
(3) Cartridge holder
(4) Holder lifting lever
(5) Pickup device
(6) Magnetic head device
(7) Gear mechanism
(72) Pinion

Claims (5)

In the disk cartridge loading apparatus in which the disk cartridge (10) is moved from the cartridge ejection position to the recording / reproducing position and the magnetic head (61) is moved closer to the disk cartridge (10) at the recording / reproducing position, the motor (71) And a slide member (2) on which a rack (24) meshing with the pinion (72) is formed, and the rack (24) is a straight portion extending on a straight line ( 25) and an arc portion (26) extending on the arc line, and the pinion (72) meshes with the linear portion (25) of the rack (24) to reciprocate the slide member (2), thereby By reciprocating the cartridge (10) between the cartridge discharging position and the cartridge retracting position, the pinion (72) meshes with the arc portion (26) of the rack (24) and rotates the slide member (2). Disc cartridge The disc cartridge is characterized in that the magnetic head (61) is moved close to and away from the disc cartridge (10) at the recording / reproducing position. Loading device. After the disk cartridge (10) is moved from the cartridge ejection position to the cartridge retracted position, the disk cartridge (10) is moved from the cartridge retracted position to the recording / reproducing position, and the disk cartridge (10) at the recording / reproducing position is moved to In the disk cartridge loading device for bringing the magnetic head (61) closer to the
A cartridge holder mechanism having a cartridge holder (3) to receive a disk cartridge (10) and reciprocating the disk cartridge (10) between a cartridge retracting position and a recording / reproducing position by reciprocating the cartridge holder (3) When,
A cartridge transport mechanism for reciprocally moving the disk cartridge (10) in the cartridge holder (3) between the cartridge discharge position and the cartridge pull-in position;
A magnetic head mechanism for moving the magnetic head (61) closer to and away from the disk cartridge (10) at the recording / reproducing position;
A pinion (72) rotated by a motor (71) and a slide member (2) formed with a rack (24) meshing with the pinion (72) are provided. The rack (24) is arranged on a straight line. A driving mechanism having a linear portion (25) extending and a circular arc portion (26) extending on an arc line, and the pinion (72) of the driving mechanism meshes with the linear portion (25) of the rack (24) and slides. By moving the member (2), the cartridge transport mechanism is driven by the slide member (2), and the pinion (72) meshes with the arc portion (26) of the rack (24) to rotate the slide member (2). A disk cartridge loading device in which a cartridge holder mechanism and a magnetic head mechanism operate in conjunction with the rotation by moving the cartridge holder mechanism. The cartridge transport mechanism includes a cartridge pull-in lever (8) that engages with the slide member (2) of the driving mechanism and engages with the disk cartridge (10) in the cartridge holder (3). 3. A disk cartridge loading device according to claim 2, wherein the driving force is transmitted to the disk cartridge via the cartridge pull-in lever. The cartridge holder mechanism includes a spring means that presses the cartridge holder (3) toward the recording / reproducing position, and slides in a state where the pinion (72) of the driving mechanism is engaged with the linear portion (25) of the rack (24). The member (2) lifts the cartridge holder (3) against the spring means, and the slide member (2) is in the state where the pinion (72) is engaged with the arc portion (26) of the rack (24). 4. The disk cartridge loading device according to claim 2, wherein the cartridge holder (3) is allowed to be pressed by the disk cartridge. The magnetic head mechanism includes spring means for pressing the magnetic head (61) toward the disk cartridge (10) at the recording / reproducing position, and the pinion (72) of the driving mechanism is connected to the linear portion (25) of the rack (24). In the engaged state, the slide member (2) lifts the magnetic head (61) against the spring means, and the pinion (72) is engaged with the arc part (26) of the rack (24), 5. The disk cartridge loading device according to claim 2, wherein 2) allows the magnetic head (61) to be pressed by the spring means.

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