JPH0576108B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to an information recording/reproducing apparatus equipped with an automatic cartridge loading mechanism for information recording media, such as optical discs or magneto-optical discs, and a system for transporting a cartridge to a predetermined position. The present invention relates to an information recording/reproducing device that is capable of retaining information in a good manner.

Prior Art Conventionally, in an information recording/reproducing device that uses a cartridge containing an information recording medium, the cartridge inserted into the device is held by a frame (referred to as a cartridge transporter) that holds the cartridge, and is transported to the position of the turntable. be done. As the cartridge transport body moves, the clamp mechanism that clamps the information recording medium in the cartridge moves, but the timing at which the cartridge transport body reaches the turntable and the timing at which the clamp mechanism clamps the medium are different. It is configured to be synchronized.

However, since the cartridge transport body moving mechanism and the clamp moving mechanism are basically independent mechanisms, a complicated mechanism is required to time the movement of both.

OBJECTS OF THE INVENTION It is an object of the present invention to enable synchronized movement of a cartridge transport body and a clamp mechanism with a simple configuration.

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an information recording and reproducing apparatus that performs recording and reproducing by placing and holding an information recording medium on a turntable. a conveyance body driving means for conveying the information recording medium in two directions, a first direction parallel to the medium surface and a second direction perpendicular to the medium surface, with the body facing the turntable, drawing an L-shaped trajectory; a clamp support arm having a rotation fulcrum and rotatably supported by the carrier; and a clamp support arm supported at one end of the rotation fulcrum for clamping the information recording medium to the turntable. a clamp head, and a guide member arranged at the other end of the clamp support arm with respect to the rotation fulcrum and fixed to the base.
and a clamp actuator that moves in the second direction, and the clamp support arm rotates to clamp the information recording medium to the turntable only when the carrier moves in the second direction. be.

Examples Hereinafter, the present invention will be specifically explained using examples.

As shown in FIGS. 1 to 6, the information recording and reproducing apparatus according to the present invention includes a main body frame 1, a cartridge transport body 2 that holds a cartridge, and a transport body drive mechanism 3 that operates this cartridge transport body 2.
and a disk clamp mechanism 5 for clamping the cartridge 4.

The main body frame 1 is made up of side plates 102, 102 screwed onto a base 101 and connected by a plurality of reinforcing members 103, and the front end (right end in the figure) includes:
An insertion port 104 for receiving the cartridge 4 is provided. A lid 105 is installed in this insertion port 104, and this lid 105 is always closed by the biasing force of a spring 106 (see FIG. 4), and a predetermined force is applied to the lid 105 by a pin 108 that is biased upward by a spring 107. Locks are now being applied. Furthermore, a conveyance guide groove 109 is formed in the side plate 102 .

The cartridge transport body 2 is a frame-shaped body provided within the main body frame 1, and holds the cartridge 4 inserted through the insertion opening 104 and transports it to a predetermined position. In particular, Figures 7 to 9
As shown in the figure, the disk clamp mechanism 5 is installed on the upper plate 202 of the cartridge transport body 2, and a transport body support frame 205 is provided at the lower part. This carrier support frame 205 includes
Guide roller 20 for inserting multiple cartridges
3,..., 203 is supported. In particular, as shown in FIG. 9, an angular leg portion 206 formed by bending the upper plate 202
It is integrally screwed to the Cartridge 4
is supported by rollers 203 of a roller frame 204. Further, the conveyance support body 205 is provided with a conveyance guide roller 207 .
This conveyance guide roller 207 is fixed to the cartridge conveyor 2 by an interlocking shaft 208.
Conveyance guide groove 109 formed in the side plate 102
fitted inside. This conveyance guide groove 109
are a horizontal conveyance section 110 and a vertical downward conveyance section 111.
It has In addition, the conveyance guide roller 207
As will be described later, the interlocking shaft 208 that supports the
It is engaged with link levers 304 and 305 of the transport drive mechanism 3.

Note that reference numeral 210 is a cartridge presser attached to the upper plate 202 of the cartridge transport body 2, and a roller 212 provided at the tip of an elastic arm 211 presses a recess 1010 for positioning and fixing provided on the upper surface of the cartridge 1. I'm starting to do that.

The conveyor drive mechanism 3 includes a drive motor 301, a drive shaft 302 rotated by the drive motor 301, and a link lever 304 fitted to the tip of the shaft 302.

The drive shaft 302 is rotatably supported between the two side plates 102 by a bearing 306. The drive motor 301 and drive shaft 302 are
They are connected via reduction gears 307 and 308, and a pulley 309 is attached to the drive shaft 302.
On the other hand, for the driven shaft 303. A pulley 310 is attached, and both pulleys 309 and 310 are crossed by a wire 311, and both shafts 302 and 30 are connected to each other by a wire 311.
3 rotates at the same time.

Further, the link levers 304 and 305 have long grooves 312 and 313 at the operating end portions, and the long grooves 31
2,313 is the cartridge conveying roller 20
7 is engaged with the interlocking shaft 208. Through this engagement, driving force is transmitted to the cartridge transport body 2.

The drive mechanism using this link lever may be a set of left and right mechanisms if it is only for transporting, but when transporting a wide cartridge transport body back and forth as in the present invention, it is necessary to By providing a plurality of pairs of link levers 304 and 305 in parallel, it is possible to improve the stability of the cartridge transport body and distribute the driving force.

Furthermore, the link levers installed in parallel are synchronized,
Multiple pairs (in this example, two
The link lever of the set) is connected by the connecting rod 314.
They are connected by pivot connection pins 315 and 316.

Further, a manual knob 317 is fitted to the outwardly extending portion of the drive shaft 302.
By turning 17, the drive shaft 302 can be rotated manually. Further, a switch piece 318 is attached to the lower end of the link levers 304, 305, and this switch piece 318 can be received by the photoelectric switch bodies 319-1, 319-2 fixed to the base 101 side. ing. That is, as shown in FIG.
It has a switch function by blocking it by moving. This allows a switch to end the cartridge transport operation to be turned on.

The disk clamp mechanism 5 is pivotally attached to a pivot shaft 503 of a clamp support plate 502 of a clamp stand 501 provided on the upper plate 202 of the cartridge transport body 2 . At the tip of the clamp support arm 504, a clamp head 505 is loosely fitted and supported by a clamp holder 506. Also,
The other end of the clamp support arm 504 is provided with a cylindrical clamp actuation end 507 . This clamp operating end portion slides on the lower surface of a clamp guide plate 508 fixed to the upper part of the main body frame 1.

The clamp guide plate 508 moves the clamp operating end 50 of the disk clamp 5 while the cartridge transport body 2 is in the horizontal transport section 110 of the transport guide groove 109 from the position before cartridge insertion shown in FIG.
7 is restrained, the clamp support arm 504 is held in a left-rotated state, and the clamp head 505 is held in an inoperative position.

Further, reference numeral 701 is a cartridge positioning pin implanted in the base (fixed part) of the device, and the positioning holes 404, 405, 406 of the cartridge 4 are
(FIG. 10), and a vertical positioning member 702 for the cartridge 4 is provided at a portion of each pin. This vertical positioning member may be a step integrally formed on the positioning pin 701 itself. Thus, the horizontal and vertical positions of the cartridge 4 are regulated by these pins. The positioning height of the vertical positioning member 702, which regulates the vertical position, is set so that the positioning height of the vertical positioning member 702 is set so that it is closer to the gap between the recording medium 9 and the bottom surface of the cartridge than to the mounting surface of the disk-shaped recording medium 9 on the turntable 703 (FIG. 8) of the apparatus. By designing the cartridge to be lower by a distance equal to the thickness of the bottom plate of the cartridge, it is possible to set the disk so that it does not come into contact with the cartridge during rotation.

In FIG. 5, the micro SW 1002 is turned on when a cartridge is loaded into the cartridge transport body.

Micro SW1003 is cartridge A.
In FIG. 5, the switch for detecting the surface and the B side is turned OFF due to the notch 1004 in the cartridge, indicating that it is the A side. When this cartridge is turned over and inserted, there is no notch this time and SW1003 is turned on, so it is detected that it is on the B side.

The micro SW 1005 determines whether or not a loaded cartridge is capable of recording, and is determined based on the presence or absence of a notch. The cutout may be a tongue piece that can be easily removed, or a tongue piece that can be moved through a guide groove, such as a so-called window.

As shown in FIG. 10, the cartridge 4 has an insertion opening 401 for a recording/reproducing head, an insertion opening 402 for a turntable for driving a disk in the device, and through holes 404 for positioning provided at the four corners of the bottom of the cartridge. 406, and notches 407 formed on both sides of the cartridge. These are used for positioning with respect to the cartridge transport body 2 when transporting the cartridge, as will be described later. Further, the distal end of the cartridge is cut out at a predetermined angle θ, as shown in FIG. This facilitates insertion of the cartridge into the cartridge transport body, and θ≈α, where α is the angle of the insertion opening of the transport body. Incidentally, both sides of the cartridge 4 are provided with recesses 1010 for positioning and fixing, which fit into the cartridge presser 210 during transportation.

Hereinafter, the operation of the cartridge transport mechanism of the present invention will be explained with reference to the drawings.

First, as shown in FIG. 1, when the cartridge 4 containing a disk-shaped recording medium is inserted from the cartridge insertion slot 104 by flipping up the lid 105 in the direction of the arrow, the cartridge 4 is inserted into the cartridge insertion slot provided on the roller frame 204. Guide roller 20
3 and is inserted into the cartridge transport body 2.

At this time, the roller 212 of the cartridge presser 210 is pressed against its elastic arm 21 on the upper surface of the cartridge.
It can be pushed up against the elasticity of step 1 and inserted without play. Eventually, when the cartridge is completely pushed into the cartridge transport body 2, the cartridge presser roller 212 on the top surface of the cartridge falls into the positioning recess provided on the top surface of the cartridge and locks the cartridge. At the same time, the elastic locking member 705 provided on the side of the cartridge transport body engages with the notch 407 on the side surface of the cartridge, so that the cartridge is completely fixed in position within the transport body.

When the insertion and fixation of the cartridge is completed, the micro SW 1002 is pushed and turned ON, the drive motor 301 which is the power source is turned on, and the drive mechanism consisting of the link lever starts operating.

When the drive mechanism operates, two sets of link levers 3
04 and 305 swing to the left around the shafts 302 and 303. Therefore, the link levers 304, 305
The cartridge conveying body 2 is moved along the horizontal conveying section 110 of the conveying guide groove 109 via the interlocking shaft 208 of the cartridge conveying support frame 205 and the guide roller 207 that are engaged with the long grooves 312 and 313 at the tip of the cartridge conveying body 2 . 1 Move to the left on the diagram.

At this time, if there is only one set of link levers, the transport body 2 is mechanically unstable and may tilt or play, but two sets of link levers 304, 3
Since the load is distributed by 05, it runs stably.

As shown in FIG.
When the cartridge transport body 2 reaches position 1,
It begins to descend along the vertically descending conveyance section 111 of the guide groove.

First, the cartridge 4 has positioning holes 404 to 407 aligned with the positioning pins 7.
01 and moves down together with the cartridge transport body 2 while positioning in the horizontal direction. At the same time, the clamp support arm 504 of the clamp 5 begins to rotate to the right as the cartridge carrier 2 descends.

As shown in FIG. 3, the conveyance guide roller 207
When the cartridge transport member 2 descends to near the lower end of the vertically descending transport section 111, the cartridge 4 guided by the positioning pin 701 is moved downward by the lowering of the cartridge transport body 2.
The lowering position of the pin 701 is regulated by the stepped portion of the vertical positioning member 702, and the drive mechanism stops its operation in response to a signal from the switch 319-2 for ending the conveyance movement.

At this time, as described above, the disc-shaped recording medium 9 in the cartridge 4 has a predetermined relationship between the height of the disc mounting surface of the turntable 703 and the vertical positioning member 702 of the positioning pin 701. As shown in Figure 8, the cartridge is supported by a turntable with a gap in the center thereof. At the same time, the clamp head 505 supported by the clamp holder 506 at the tip of the clamp support arm of the disk clamp 5, which has rotated to the right as the cartridge transport body 2 descends, moves onto the turntable 70.
3. Clamp the disk 9 fitted in the central spindle guide 704 by pressing it from above.

Note that numerals 508 and 509 are a disk holder and a magnet, respectively, provided on the clamp head.

After the transport and positioning of the cartridge 4 has been completed and the necessary recording and reproducing operations have been performed on the recording medium, the drive mechanism 3 consisting of a link lever starts operating again by operating the eject button (not shown). By swinging the link lever in the opposite direction (rotating to the right), the cartridge transport body 2 is reversibly moved and returned to the state shown in FIG. When the conveyance guide roller 207 reaches the right end (initial position) of the horizontal conveyance section, the switch piece 318 blocks the photoelectric switch body 319-1, and after a predetermined delay time,
The motor drive is turned off.

The pulleys 309 and 310 provided on the link levers 304 and 305 are unnecessary for performing a mere conveying function, and the pulleys 309 and 310 provided on the link levers 304 and 305 are
If it is possible just to synchronize with the connecting rod 31
However, since this drive mechanism is actually a drive mechanism consisting of a link lever, when the cartridge transport body 2 returns, the horizontal transport section 110 and the vertical downward transport section 111 of the guide groove 109 mentioned above are used. It is useful when it is near the displacement point of .
That is, as shown in FIGS. 3 and 8, the cartridge transport body 2 finishes transporting the cartridge 4, completes the positioning action, completes the predetermined recording or reproducing action on the recording medium, and then moves the guide groove 109 by a reversible action. When starting to ascend from the vertically descending conveyance section of the link levers 304 and 305,
12, 313, the interlocking shaft 208 is
As the lever rotates, an upward component force and a rightward component force act in the drawing, but when the vertical descending conveyance section 111 and the horizontal conveyance section of the guide groove reach the displacement point, the interlocking shaft 208 of the lever acts. The horizontal force is larger, and the force in the direction of lifting the carrier is smaller (for example, if the lever 304 or 305 stands up vertically, the force due to the rotation of the lever will be , all acting in the horizontal direction). Therefore, unless the force applied to the lever at this time is increased (the rotational torque is increased), the cartridge transport body will not be able to rise smoothly, so the load on the motor (not shown) that is the drive source will be becomes very large.

On the other hand, when the inclination angle of the link lever is large, the upward component force is larger and the horizontal component force of the cartridge conveyor is smaller, and the load on the motor increases in this case as well.

In such a case, link levers 304 and 305
By connecting these with pulleys 309, 310 and wire 311 as shown in the figure, strong rotational force is transmitted smoothly and equally to both link levers.

Effects of the Invention In the present invention, the clamp mechanism is directly attached to the disk transport body, and the clamp mechanism moves in direct association with the movement of the disk transport body, so that reliable disk clamping is possible with a simple configuration. Provides recording and reproducing devices.

[Brief explanation of the drawing]

1, 2, and 3 are longitudinal cross-sectional views showing the operation of an information recording/reproducing apparatus according to an embodiment of the present invention; FIG. 4 and FIG. 5 are cross-sectional views and plan views thereof; and FIG. is a plan sectional view. 7 and 8 are partial vertical sectional views showing the main parts of the cartridge transport mechanism, FIG. 9 is a front sectional view thereof, and FIG. 10 is a bottom view of the cartridge. 1... Body frame, 2... Cartridge transport body, 3
...Carrier drive mechanism, 4...Cartridge, 5...
...Disc clamp mechanism, 9...Recording medium, 10
DESCRIPTION OF SYMBOLS 1... Base, 102... Side plate, 103... Reinforcement member, 104... Insertion port, 105... Lid, 10
6,107...Spring, 108...Pin, 109...
...Conveyance guide groove, 110...Horizontal conveyance section, 111
... Vertical descending conveyance section, 202 ... Upper plate, 203 ...
...Guide roller, 204...Roller frame, 205...
... Conveyance body support frame, 206 ... Leg section, 207 ... Conveyance guide roller, 208 ... Interlocking shaft, 210 ...
Cartridge holder, 211...Elastic arm, 21
2...Roller, 301...Drive motor, 302...
... Drive shaft, 303 ... Driven shaft, 304, 305 ...
... Link lever, 306 ... Bearing, 307, 30
8...Reduction gear, 309,310...Pulley, 3
12, 313...Long groove, 314...Connection rod,
315, 316... Connection pin, 317... Manual knob, 318, 319... Switch, 501... Clamp base, 502... Clamp support plate, 503...
... Pivot, 504 ... Clamp support arm, 505
... Clamp head, 506 ... Clamp holder, 507 ... Clamp operating end, 508 ... Clamp guide plate, 701 ... Cartridge positioning pin, 702 ... Vertical positioning member, 703 ...
...Turntable, 705...Elastic lock member.

Claims (1)

[Claims] 1. In an information recording and reproducing device that performs recording and reproduction by placing and holding an information recording medium on a turntable, there is provided a carrier for holding the information recording medium, and a carrier for holding the information recording medium, and a carrier for holding the information recording medium on the turntable. a conveyor driving means for conveying the medium while drawing an L-shaped trajectory in two directions, a first direction parallel to the medium surface and a second direction perpendicular to the medium surface; a clamp support arm rotatably supported; a clamp head supported at one end of the clamp support arm with respect to a rotation fulcrum for clamping the information recording medium to the turntable; and a clamp head for clamping the information recording medium to the turntable; a clamp actuating section that moves in the first direction along a guide member that is disposed at the other end of the fulcrum and fixed to the base, and the clamp actuating section moves in the first direction only when the carrier moves in the second direction. An information recording/reproducing device characterized in that a clamp support arm rotates to clamp an information recording medium to a turntable.