JP2002157810A - Recording and/or reproducing device of disk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect an elevator and to thin a device in a disk auto-changer. SOLUTION: The disk auto-changer 1 is provided with a disk cartridge 4 having a plurality of trays 11...11 supporting a disk, the elevator 5 arranged at the side of the disk cartridge 4 and an elevating control mechanism 6 raising/ lowering the elevator 5 in a position corresponding to the desired tray of the disk cartridge 4 at the time of recording and/or reproduction and returning the elevator to a stand-by position (home position) after recording and/or reproduction terminate. The stand-by position of the elevator 5 is set upper than a position corresponding to the tray 11 in the lowest stage of the disk cartridge 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording and / or reproducing apparatus for a disk such as a disk autochanger, and more particularly to a lifting / lowering apparatus provided with a recording and / or reproducing unit for a disk such as an optical pickup at a standby position (pome position). An elevator as a body can be protected from impact or the like.

[0002]

2. Description of the Related Art FIG.
3 is known. The disk autochanger 201 includes a disk cartridge (also referred to as a magazine) 203 in which a plurality of disk-shaped recording media (hereinafter, referred to as disks) 202 are stored in a storage unit in a hierarchical manner.
An elevator (hereinafter, referred to as an elevator) 204 disposed opposite to the opening of the disk cartridge 203, and a movement control for moving the elevator 204 up and down to a desired disk 202 housed in the disk cartridge 203. A mechanism 205 is provided. The disk cartridge 203 can be inserted into and removed from the cartridge housing 207 of the mechanical chassis 206.

As shown in FIG. 34, the disc cartridge 203 includes a plurality of trays 211 on which the discs 202 are placed, and a case 212 in which the trays 211.

The tray 211 is provided with a case 212
An operation portion (hereinafter, referred to as a hook portion) 213 for pulling out from the case 212 or returning the same to the inside of the case 212 is provided on one side, and a loading mechanism (not shown) is engaged with the hook portion 213. It has become.

[0005] As shown in FIG.
Is provided with a plurality of disk storage portions 214... 214 for removably storing the tray 211. The disk accommodating portions 214... 214 are formed by providing shelf-shaped projections 215 and 216 at positions facing the inner surfaces of the left and right side plates 212 a and 212 b of the case 212. , 216 support both sides of the tray 211.

As shown in FIGS. 36A and 36B, the elevator 204 includes a lower block section 223 having a disk recording and / or reproducing section including a disk table 221 and an optical pickup 222, and the like. An upper block 226 having a chucking mechanism 224 and a loading mechanism 225 is provided.

As shown in FIGS. 37 and 38, an upper block 226 is mounted on the lower block 223, and the tray is located between the lower block 223 and the upper block 226. 211 and the tray 2
A space S into which the disk 202 placed on the disk 11 can be inserted is set. Reference numeral 227 denotes a chucking plate constituting the chucking mechanism 224.

[0008] As shown in FIG.
4 are supported shafts 228... 22 on one side and the other side, respectively.
8 is provided. The elevator 204 inserts the supported shafts 228... 228 into elongate vertical lifting guide grooves 233 233 provided on the left and right side plates 231 and 232 of the mechanical chassis 206, so that the mechanical chassis 206 The lift control mechanism 205 moves up and down along the lift guide grooves 233... 233.

The elevation control mechanism 205 includes a pair of movable plates 234 and 235 superimposed on the left and right side plates 231 and 232 of the mechanical chassis 206, respectively, and a movable plate drive mechanism (for driving the movable plates 234 and 235). (Not shown).

The moving plates 234 and 235 are provided with operation grooves 236 intersecting with the elevation guide grooves 233 so that the supported shaft 228 is supported at the intersection of the operation grooves 236 and the elevation guide grooves 233. Has become.

The operation groove 236 is provided in the elevator 20
4 is provided with a slanted elevating groove 237 for elevating and lowering along the elevating guide groove 233, and a horizontal standby groove 238 for elevating the elevator 204 at the lowermost position of the elevating guide groove 233. . The moving plates 234 and 235 are provided with a moving guide groove 239, and the moving guide groove 239 is provided in the mechanical chassis 2.
By inserting the guide pins 240 provided on the left and right side plates 231 and 232 of the
4, 235 are movable within the range of the length of the moving guide groove 239.

[0012]

In the conventional disk autochanger 201, the groove 238 for standby of the moving plates 234 and 235 is connected to the lower end of the groove 237 for lifting and lowering.
Since they are formed in parallel with the movement direction of 34, 235, there are the following problems.

(1) In a state where the elevator 204 is waiting at a standby position (home position), as shown in FIG. 40, a lower end portion 204a of the elevator 204 is provided.
Is projected from the lower ends 231a and 232a of the left and right side plates 231 and 232 of the mechanical chassis 206, the lower end 204a of the elevator 204 is more susceptible to external impact.

(2) In order to make it hard to receive an external impact, as shown in FIG. 41, the width W in the height direction of the left and right side plates 231 and 232 of the mechanical chassis 206 is increased.
Lower ends 231a, 231 of these left and right side plates 231, 232
Although it is conceivable to design the lower end 204a of the elevator 204 to be located above the upper end 32a, if the width W in the height direction of the left and right side plates 231 and 232 is increased, the entire disk autochanger 201 will The height of the disk autochanger 201
This is an obstacle to reducing the thickness of the device.

The present invention solves the above-mentioned conventional problems, and lowers the lower end of the elevator at the standby position from the lower end of the side plate of the mechanical chassis without increasing the width of the side plate of the mechanical chassis in the height direction. By being positioned above, the protection of the elevator and the reduction in thickness of the disk autochanger can be achieved.

[0016]

SUMMARY OF THE INVENTION The present invention relates to a disk cartridge having a plurality of disk storage sections for storing disks, and a recording and / or reproducing section for a disk disposed opposite to an opening of the disk cartridge. Raising and lowering the recording and / or reproducing unit to a position corresponding to a desired disk storage unit of the disk cartridge during recording or reproducing of the disk, and waiting for the recording and / or reproducing unit of the disk after the recording and / or reproducing is completed In a disk recording and / or reproducing apparatus provided with an elevation control mechanism for returning the disk to a position, the standby position of the recording and / or reproducing section of the disk is set to be lower than the position corresponding to the lowermost disk storage section of the disk cartridge. By setting it upward,
The lower end of the recording and / or reproducing section of the disk at the standby position is raised above the position corresponding to the lowermost disk storage section and accommodated in the mechanical chassis, thereby making the apparatus thinner and recording and / or reproducing the disk. Can be protected.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A disc recording and / or reproducing apparatus according to the present invention will be described by taking a disc changer as an example.
(1) Outline of disk changer, (2) Description of disk cartridge, (3) Elevator (elevator)
, (4) description of the lifting control mechanism, (5) description of the loading mechanism, (6) description of the disk chucking mechanism, (7) description of the operation of the entire disk changer,
(8) Description of another embodiment of the lifting / lowering control mechanism.

(1) Outline of Disc Changer FIG. 1 is a perspective view of a disc changer 1. The disc changer 1 includes a disc cartridge 4 having a plurality of disc mounting trays 11... 11 to be loaded in a cartridge accommodating section 3 of a mechanical chassis 2, and an elevating and lowering mechanism disposed beside the cartridge accommodating section 3. A body (hereinafter, referred to as an elevator) 5, a lifting control mechanism 6 for raising and lowering the elevator 5 along an opening 36 of the disk cartridge 4 loaded in the cartridge housing section 3,
Loading mechanism 7 for transferring trays between the disk cartridge 4 and the elevator 5 (see FIG. 23)
And a disk chucking mechanism 8 (see FIG. 14) for chucking the disk on the tray conveyed to the elevator 5 side by the loading mechanism 7 on a disk table. Then, the elevator 5 is moved up and down to a desired position of the tray 11 of the disk cartridge 4 by the elevation control mechanism 6, and the desired tray 11 is conveyed to the elevator 5 side by the loading mechanism 7, and then placed on the tray 11. The disc D is chucked on the disc table by the disc chucking mechanism 8 to record and / or reproduce the disc.

(2) Description of Disk Cartridge FIG. 2 is a perspective view of the disk cartridge 4. The disc cartridge 4 includes a plurality of trays 11... On which a disc D is placed, and a case 12 in which the trays 11.

The tray 11 is provided with a disc positioning recess 1 for mounting the disc D in a fitted state.
And a notch 14 for introducing the disk table and a notch 15 for moving the pickup from the center of the recess 13 to one side thereof. An operation unit (hereinafter, hook) to which a tray engaging portion (hereinafter, referred to as a hook engaging portion) 91 of the loading mechanism 7 described later engages with one side of the front end (pull-out end) of the tray 11. 16) is provided.

The upper surface of the hook portion 16 of each of the trays 11... 11 serves as a display section 48 for displaying the number of the tray from the top (or from the bottom). On the display section 48, serial numbers from 1 to n are displayed in order from the uppermost tray.

A display unit 49 for displaying the number of the tray is also provided at a position on one side of the case 12 corresponding to the uppermost tray to the lowermost tray. The display unit 49 is provided with serial numbers from 1 to n in the same manner as in the case of the tray.

FIG. 3 is a plan view showing the tray 11 turned upside down. The tray 11 has first and second supported portions supported on a pair of first and second tray support portions 42 and 43 provided on a case 12 described below on left and right sides of the back surface. 1
7, 18 are provided.

The second supported portion 18 has a guide portion 19 for inserting and removing the tray (insertion and removal) on one side thereof. The guide portion 19 is formed in a long groove shape substantially on the same line as the hook portion 16 in the tray entry / exit direction XX ′.

The elongated groove-shaped guide portion 19 has a divergent tapered surface 20 at the end on the hook portion 16 side, a first hole 21 at the center, and a second hole at the other end. Part 22
It has. In addition, the second supported portion 18 has a downwardly inclined surface 23 on the side of the second hole 22, a first concave portion 24 continuous with the inclined surface 23, Depression 2
4 is provided with a first stopper 25 continuous with the first stopper 4.

Similarly to the second supported portion 18, the first supported portion 17 has a downwardly inclined surface 26, a second concave portion 27 connected to the inclined surface 26, and a second concave portion 27. And a second stopper portion 28 which is continuous with the concave portion 27.

As shown in FIG. 2, the case 12 comprises an upper plate 31, a lower plate 32, a left side plate 33, a right side plate 34,
The tray 11 is formed in a flat box shape by the rear face plate 35, and the trays 11...

The case 12 has a shape in which one side of the opening 36 is cut out, and is cut off at a corner.
The hooks 16 of the trays 11... 11 are exposed to the outside of the case 12 from the cut corners.

FIG. 4 is a front view of the disk cartridge 4. The case 12 is provided with a plurality of disk storage sections 41. The disk storage portion 41 is provided with the left and right side plates 33,
The first and second tray support portions 42 and 43 having a pair of shelves are formed at opposing positions on the inner surface of the inner plate 34.

FIG. 5 is a sectional view taken along line AA 'of FIG. 4 with the tray 11 removed. The first and second tray support portions 42 and 43 are provided on the first and second trays 11 as described above.
The second supported portions 17 and 18 are horizontally supported.

The first tray support section 42 has a first notch 44 closer to the front end (opening 36) than the center in the length direction. Further, the second tray support portion 43
Is provided with a second notch 45 at a position opposed to the first notch 44, and a guide which enters a long groove-shaped guide portion 19 provided on the back surface of the tray 11 inside the front end side. A projection (hereinafter, the guide projection of the disk cartridge 4 is referred to as a first guide projection) 46 is provided.
The first guide protrusion 46 is formed in a size that cannot be fitted into the first hole 21 provided at the center of the guide portion 19, and can be fitted into the second hole 22. It is formed in a suitable size.

FIG. 6 is a sectional view showing the state in which the tray 11 is accommodated in the case 12 (sectional view taken along the line AA 'in FIG. 4), FIG. 7 is a sectional view taken along the line BB' in FIG. Is CC 'in FIG.
FIG. 9 is a cross-sectional view of a main part taken along line DD ′ of FIG.
In a state where the tray 11 is accommodated in the case 12, the first and second supported portions 17, 18 of the tray 11 are provided.
Are the first and second tray support portions 42, 43 of the case 12.
It is placed on top of the tray 1
The first guide projection 46 provided on the second tray support portion 43 is fitted into the long groove-shaped guide portion 19 provided on the first guide projection 46.

When the user pulls the tray 11 from the state shown in FIG. 6 by hooking a fingertip on the hook portion 16 of the tray 11 or engaging a hook engaging portion 91 of the loading mechanism 7 described later. The tray 11 is drawn straight out of the case 12 by the guide portion 19 and the first guide protrusion 46 without tilting in the left-right direction.

FIG. 10 is a cross-sectional view showing a state in which the tray 11 corresponding to FIG.
FIG. 11 is a cross-sectional view of a principal part taken along line EE 'of FIG. 10, and FIG.
13 is a sectional view taken along line FF 'of FIG. 10, and FIG. 13 is a sectional view taken along line GG' of FIG. When the tray 11 is pulled out of the case 12 by a predetermined amount, the first and second stopper portions 25 and 28 of the tray 11 are provided on the first and second tray support portions 42 and 43 of the case 12. , Second notches 44, 4
5 and the first and second stopper portions 2
First and second tray support portions 42 and 43 in front of the first and second cutout portions 44 and 45 of the case 12 are provided in the first and second recessed portions 24 and 27 that are continuous with the fifth and 28th. be introduced. Then, the first and second tray support portions 42, 43
As a result, the tray 11 is placed in the first and second recesses 2.
The upper surfaces of the trays 4 and 27 are supported, and the guide projections 46 provided on the case 12 are fitted into the second holes 22 provided on the tray 11. It is in a state where falling off is prevented.

(3) Description of Elevator The elevating body, ie, the elevator, is disposed to face the opening 36 of the disk cartridge, is raised and lowered to a desired disk storage part, ie, a tray position by an elevating control mechanism, and is loaded by the loading mechanism. The disc placed on the tray pulled out of the disc cartridge is chucked on a disc table by a disc chucking mechanism, and recording and / or reproducing of the disc is performed by a recording and / or reproducing unit including an optical pickup or the like.

FIG. 14 is a perspective view of the elevator 5, FIG. 15 is a sectional view of a main part of FIG. 14, FIG. 16 is a front view of the elevator,
FIGS. 17A and 17B are plan views of the upper block 51 and the lower block 53 constituting the elevator 5.

As shown in FIGS. 14 and 15, the elevator 5 includes an upper block 51 and the upper block 5.
A lower block 53 is attached to the first block 52 so as to be rotatable by a first shaft 52, and first and second lower block rotating operating bodies 54 and 55 are slidably attached to both sides of the upper block 51. And first and second link levers 56 and 57 for connecting the first and second lower block rotation operating bodies 54 and 55 and moving them in the same direction in synchronization with each other. The first link lever 56 has one end connected to the first lower block rotation operating body 54 via a first shaft 58, and a central portion connected to the lower surface of the upper block portion 51 via a second shaft 59. It is rotatably mounted, and the other end is connected to one end of the second link lever 57 by a third shaft (hereinafter, referred to as a connecting pin) 60.

The second link lever 58 has a central portion rotatably attached to the lower surface of the upper block portion 51 with a fourth shaft 61 and the other end connected with a fifth shaft 62 with the second lower portion. It is connected to the block rotation operation body 55.

When one of the first and second lower block rotation operating members 54 and 55 is slid, the other slides in the same direction via the first and second link levers 56 and 57. It is supposed to.

Each of the first and second lower block rotation operating members 54 and 55 has an inclined operation groove 63, and the other end of the lower block portion 53 (the first A second shaft 64 provided at the opposite end of the shaft 52 is inserted. Then, as shown by the solid line in FIG. 14, when the second shaft 64 is located at the lower end side of the inclined operation groove 63, as shown in FIG. The free end side of the lower block portion 53 is tilted downward about the shaft 52, and when the tray has been inserted, the first and second blocks are set as shown by the two-dot chain line in FIG.
By moving the lower block rotating operation bodies 54 and 55 in the direction of arrow A to position the second shaft 64 on the upper end side of the inclined operation groove 63, the lower block section 53 is lifted substantially horizontally. To maintain.

As shown in FIG. 16, the upper block 51
Is provided with a pair of tray support portions (hereinafter, the elevator tray support portions are referred to as third and fourth tray support portions) 65 and 66 on the left and right sides. The third and fourth tray support portions 65 and 66 support the first and second supported portions 17 and 18 on both sides of the tray 11 pulled out from the disk cartridge 4.

The third tray support portion 65 enters the long groove-shaped guide portion 19 of the tray 11 drawn out of the disk cartridge 4 and guides the guide 11 (hereinafter, referred to as a guide protrusion). The guide projection of the elevator is referred to as a second guide projection) 67.

The second guide projection 67 is provided on the tray 11
12 is fitted into the second hole 21 provided at the center of the long groove-shaped guide portion 19 of the tray 11 as shown in FIG. It is designed to allow a fall back and forth.

As shown in FIG. 17A, a loading mechanism 7 and a disc chucking mechanism 8 are mounted on the upper block 51. As shown in FIG. 17B, the lower block portion 53 includes a disk table 68, a disk rotation driving mechanism including a spindle motor 70 for rotating the disk table 68, and an optical pickup 69. It has a disk recording and / or reproducing unit composed of an optical block composed of a carriage 71 and the like on which an optical pickup 69 is mounted. The carriage 71 moves the optical pickup 69 along the guide shaft 72. Further, the carriage 71 is driven by a carriage drive mechanism 73. The carriage driving mechanism 73 includes a motor 74, a gear train 75, and a lead screw 76. The motor 74 rotates the lead screw 76 via the gap train 75 to move the carriage 71 along the guide shaft 72. The optical pickup 69 mounted on the carriage 71 is moved in the radial direction of the disk D chucked on the disk table 68.

As shown in FIG. 18, the elevator 5
Has a first supported shaft 77 on one side surface and second and third supported shafts 78 and 79 on the other side surface. The elevator 5 is configured such that the first supported shaft 77 is
The first lifting guide groove 10 provided on the first side surface 10a
b, and the second and third supported shafts 78 and 79 provided on the second side face 10 c of the mechanical chassis 10.
By inserting the lifting guide grooves 10d and 10e into
It is attached to the mechanical chassis 10 so as to be able to move up and down in the vertical direction.

The elevator 5 is moved up and down to a desired tray 11 position of the disk cartridge 4 by an elevator control mechanism 6 described below, and the tray 11 is pulled out to chuck the disk D on the disk table 68. The recording and / or reproduction of the disc is performed by a recording and / or reproducing unit including an optical pickup or the like.

(4) Description of Elevation Control Mechanism The elevation control mechanism raises and lowers the elevator to a desired tray position in the disk cartridge.

FIG. 18 is an exploded perspective view of the lifting control mechanism, FIG. 19 is a side view showing a state in which the elevator is moved to a position corresponding to the uppermost tray of the disk cartridge, and FIG.
FIG. 21 is a side view showing a state where the elevator is moved to a position corresponding to the lowermost tray of the disk cartridge, and FIG. 21 is a side view showing a state where the elevator is waiting at a standby position.

As shown in FIG. 18, the elevation control mechanism 6
The first lifting operation plate 81 slidably superimposed on the outer surface of the first side surface 10a of the mechanical chassis 10 and the second elevating operation plate 81 slidably superimposed on the outer surface of the second side surface 10c of the mechanical chassis 10 , A link lever 83 connecting the first and second lifting and lowering operation plates 81 and 82, and an operation plate driving mechanism 84 for sliding the second lifting and lowering operation plate 82. .

The first lifting operation plate 81 is connected to the first lifting guide groove 10b provided on the first side surface 10a of the mechanical chassis 10 at the intersection with the first supported shaft 7 of the elevator 5 at the intersection thereof.
7 is provided.

The first operation groove 85 has a horizontal standby groove 85c connected to an inclined groove 85a for elevation operation and a lower end of the groove 85a for elevation operation via a communication groove 85b. It has.

As shown in FIG. 19, the first up / down operation plate 81 is in a state where the first supported shaft 77 is located at the upper end of the inclined up / down operation groove 85a.
The elevator 5 is supported at a position corresponding to the uppermost tray 11 of the disk cartridge 4.

As shown in FIG. 20, the first lifting / lowering operation plate 81 is in a state where the first supported shaft 77 is located at the lower end of the inclined lifting / lowering operation groove 85a.
The elevator 5 is supported at a position corresponding to the lowermost tray 11 of the disk cartridge 4. In this case, the lower end 5a of the elevator 5
Is projected from the lower end 10 f of the mechanical chassis 10.

As shown in FIG. 21, in the state where the first supported shaft 77 is located in the horizontal standby groove portion 85c, the first lifting operation plate 81 is a second one to be described next. The elevator 5 is raised from a position corresponding to the lowermost tray 11 to a position where the lower end 5a of the elevator 5 does not protrude from the lower end 10f of the mechanical chassis 10 (position within the mechanical chassis 10) together with the lifting operation plate 82 of FIG. It is made to wait.

As shown in FIG. 18, the second lifting operation plate 82 is provided at the intersection of the second lifting guide groove 10d provided on the second side surface 10c of the mechanical chassis 10 to move the elevator 5 upward. A third operation groove 87 that supports the third supported shaft 79 of the elevator 5 at the intersection of the second operation groove 86 that supports the second supported shaft 78 and the third elevating guide groove 10e. Have.

Like the first operation groove 85, the second operation groove 86 has an inclined lifting / lowering operation groove portion 86a,
A communication groove 86b is formed at the lower end of the lifting operation groove 86a.
And a horizontal stand-by groove 86c connected through the groove.

Similarly to the second operation groove 86, the third operation groove 87 has an inclined groove 87a for ascending and descending operation.
A communication groove 87b is formed at the lower end of the lifting / lowering operation groove 87a.
Are provided with a horizontal standby groove 87c connected through the groove.

The second lifting / lowering operating plate 82 is
Grooves 86a for the ascending and descending operation of the operation grooves 86, 87
In a state where the second and third supported shafts 78 and 79 of the elevator 5 are located at the upper end of the elevator 87a, the elevator 5 is moved together with the first elevating operation plate 81 to the uppermost tray of the disk cartridge 4. 11 in a state where the second and third supported shafts 78 and 79 of the elevator 5 are positioned at the lower end portions of the grooves 86a and 87a for the elevating operation. In the state where the cartridge 4 is supported at a position corresponding to the lowermost tray 11, and the second and third supported shafts 78, 79 of the elevator 5 are positioned in the horizontal standby grooves 86c, 87c. The position where the lower end 5a of the elevator 5 does not project from the lower end 10f of the mechanical chassis 10 from the position corresponding to the lowermost tray 11 (mechanical chassis). And it is adapted to stand raised to a position) to fit in.

The second and third operation grooves 86 and 87 are formed in a direction opposite to the first operation groove 85, and the first and second operation plates 81 and 82 are connected to each other. The elevator 5 is moved up and down by sliding in opposite directions.

The link lever 83 has a shaft 83 at the center.
a rotatably attached to the mechanical chassis 10 by a, one end is connected to the first lifting / lowering operation plate 81 by a first pin 83b and a long hole 83c, and the other end is long by a second pin 83d. It is connected to the second lifting operation plate 82 by a hole 83e.

The link lever 83 pivots about the shaft 83a1 when the first lifting operation plate 81 is slid in one direction by the operation plate driving mechanism 84, and the second lifting operation plate 82 is moved. It is slid in the opposite direction in synchronization with the first lifting operation plate 81.

The lifting control mechanism 6 of the embodiment has the above-described structure. As shown in FIG. 19, when the first lifting operation plate 81 is moved to the leftmost position, the second lifting operation The plate 82 is provided on the second side surface 10 c of the mechanical chassis 10.
Side, it has moved to the far right. And
At the upper end of the inclined raising / lowering operation groove portion 85a of the first operation groove 85 of the first raising / lowering operation plate 81, the elevator 5
, And the second and third supported shafts 78 and 79 of the second elevating operation plate 82 to support the elevator 5 at the uppermost stage of the disk cartridge 4. It is supported at a position corresponding to the tray 11.

When the first lifting / lowering operation plate 81 is moved rightward by a predetermined amount from the state shown in FIG. 19, the second lifting / lowering operation plate 82 moves leftward in synchronization with the movement, and the elevator 5 Is moved from the top of the disk cartridge 4 to a position corresponding to the second, third,... Trays.

Then, as shown in FIG.
When the first supported shaft 77 of the elevator 5 is supported by the lower end of the inclined operation groove 85a of the first operation groove 85 of the first operation groove 85 of the first operation groove 81, the second operation The second and third supported shafts 78 and 79 of the elevator 5 are supported at the lower ends of the inclined raising and lowering operation grooves 86a and 87a of the second and third operation grooves 86 and 87 of the plate 82. In this state, the elevator 5 is supported at a position corresponding to the lowermost tray.

When the first lifting / lowering operation plate 81 is further moved rightward by a predetermined amount from the state shown in FIG. 20, the second lifting / lowering operation plate 82 also moves leftward in synchronization with this movement. The first, second, and third supported shafts 77, 78, 79 are introduced into the standby grooves 85c, 86c, 87c of the first, second, and third operation grooves 85, 86, 87, respectively. The lower end 5a of the elevator 5 is at least the lower end 1 of the mechanical chassis 10.
This is a state where it is supported at the standby position above 0f.

(5) Description of Loading Mechanism The loading mechanism is for carrying out a tray (disk) from the disk cartridge to the elevator side, and for carrying in or returning the tray from the elevator to the disk cartridge side.

FIG. 22 is a plan view of the loading mechanism, and FIG.
3 is an exploded perspective view, FIG. 24 is a sectional view taken along line AA of FIG. 22, FIG.
5 is a perspective view showing a state where the tray is pulled in.

As shown in FIG. 22, the loading mechanism 7 includes a hook engaging portion 91 that engages with the hook portion 16 of the tray 11, a belt 92 that moves the hook engaging portion 91 in the tray entry / exit direction, A belt driving mechanism 93 for driving the belt 92 is provided. The hook engaging portion 91 is disposed on the upper surface side of the third tray support portion 65 of the upper block portion 51 of the elevator 5, and the belt 92 and the belt driving mechanism 93 are provided on the third tray support portion 65. It is arranged on the lower surface side.

As shown in FIG. 23, the hook engaging portion 91 has a connecting portion 91a with the belt 92. The coupling portion 91a is connected to the third tray support portion 6 via a guide hole 65a provided in the third tray support portion 65.
5, and is attached to the belt 92 by pins 91b.

The belt 92 is formed endlessly, that is, endlessly. (Below, the belt 92 is called an endless belt.) The endless belt 92 is suspended by a first pulley 94 and a second pulley 95, and the rotation thereof moves the hook engaging portion 91 in the tray in / out direction along the guide hole 65a. The endless belt 92 has a large number of notches 92a... 92a formed at predetermined intervals in the rotation direction.

The belt driving mechanism 93 includes a sprocket 100 for driving the endless belt 92, a first gear 101 coaxial with the sprocket 100, a second gear 102 meshing with the first gear 101, and a second gear 102. Gear 102
A third gear 103 that meshes with the third gear 103, a fourth gear 104 that is coaxial with the third gear 103, and a fifth gear 103 that meshes with the fourth gear 104.
A gear 105 and a loading motor 106 for rotating the fifth gear 105 are provided.

On the peripheral surface of the sprocket 100, projections 100a... 100a that engage with the notches 92a.

The first gear 101 is provided on the lower surface of the sprocket 100 via a spacer 107. The spacer 107 is provided with an arc-shaped notch 108.

In the upper half of the second gear 102, the toothless portion 1
09 is provided, and a portion of the upper surface of the second gear 102 corresponding to the toothless portion 109 has an arc-shaped rib 110 facing the notch 108 of the spacer 107.
Is provided. The first gear 101 meshes with the upper half of the second gear 102 having the missing tooth portion 109. The third gear 103 meshes with both the upper half and the lower half of the second gear 102. The fourth gear 104 has a screw gear (Hasuba)
, And a worm gear is used as the fifth gear 105.

Then, as shown in FIG. 22, the disk cartridge 4 is inserted into the cartridge accommodating portion 3 of the mechanical chassis in the direction of arrow A with the hook engaging portion 91 most advanced to the tray entrance / exit side of the elevator 5. , The hook portion 16 of the tray 11 naturally engages with the hook engaging portion 91.

If the motor 106 is rotated in one direction in this state, the sprocket 100 is rotated counterclockwise through the fifth gear 105 to the first gear 101, and the endless belt 92 is rotated clockwise. Then, the tray 11 is pulled into the elevator 5 as shown in FIG. When the tray 11 is pulled to a predetermined position, the second gear 102 and the first gear 10
As a result, the sprocket 100 and the endless belt 92 stop rotating.

As shown in FIG. 23, the second gear 10
On the upper surface of 2, in conjunction with the loading mechanism 7,
A sixth gear 111 for rotating the lower block portion 53 of the elevator 5 is provided.

The sixth gear 111 has a toothless portion 111a. The sixth gear 111 meshes with a rack 112 a of a rack member 112 attached to the lower end of the second lower block rotation operating body 55 of the elevator 5.
The rack member 112 has an inclined operation groove 63 on one side.
The second shaft 64 on one side surface of the lower block portion 53 of the elevator 5 is inserted into the operation groove 63.
The rack member 112 is attached to an attachment portion 55 a at the lower end of the second lower block rotation operating body 55 of the elevator 5.

Then, as described above, the tray 11
Is pulled into a predetermined position and the second gear 102 and the first gear 101 are disengaged from each other, the sixth gear 111 and the rack member 112 mesh with each other,
12 and the second lower block rotation operating body 55
To the left (in the direction of arrow A).
The second shaft 64 is pushed up toward the upper end of the third shaft 3. On the other hand, by the movement of the second lower block rotation operation body 55, the first lower block rotation operation body 54 also moves in the same direction via the first and second link levers 56 and 57, FIG.
As shown in FIG. 7, the second shaft 64 on the other side of the lower block portion 53 is pushed up to the upper end side of the inclined operation groove 63 in the same manner as the second lower block rotating operation body 55, and the lower block is rotated. By rotating the portion 53 upward, the tray 11
Is mounted on the disk table 68.

As described above, the lower block 5
When the loading motor 106 is rotated in the reverse direction from the state where the rack member 1 is rotated upward, the rack member 1 is rotated.
12 and the second lower block rotation operating body 55 move in the direction opposite to the direction when the tray is pulled in, and in conjunction with this, the first lower block rotation operating body 54 also moves in the same direction, and the lower block portion 53 Is rotated downward, so that the disk table 68 is separated from the tray 11. Next, the second gear 102 and the first gear 101 are engaged with each other, and the sprocket 100 and the endless belt 92 are rotated in a direction opposite to the direction in which the tray is pulled in. Push it back in.

(6) Description of Disk Chucking Mechanism The disk chucking mechanism presses a disk onto a disk table to prevent the disk from slipping on the disk table, and integrally rotates the disk table and the disk. Thus, the recording and / or reproduction of the disc is reliably performed.

FIG. 26 is a plan view showing a state in which the disk chucking mechanism is assembled on the upper surface of the elevator, FIG. 27 is a perspective view of the disk chucking mechanism, FIG. 28 is a plan view showing the chucking state, and FIG. FIG. 30 is a plan view showing a chucking released state, and FIG. 31 is a front view of the same.

The disc chucking mechanism 8 includes a chucking plate 121 for holding a disc, a chucking plate support member 122 for supporting the chucking plate 121, and the chucking plate 121 via the chucking plate support member 132. And an operation unit 123 for pressing the disc 121 against the disc.

The chucking plate 121 is formed in a circular shape having substantially the same diameter as that of the disk table 68, and the chucking plate supporting member 122 is provided with its central portion being allowed to move up and down a little by a shaft 131. It is supported by.

The above chucking plate support member 122
Is formed in a long and short shape by a leaf spring material, and has first and second long holes 1 at one end and the other end in the length direction, respectively.
32 and 133 are formed, and inside the first and second long holes 132 and 133, first and second projections 134 and 135 projecting toward the lower surface side are so-called cut and raised. Is formed.

The chucking plate support member 122
Is lifted by the first and second shafts 136 and 137 inserted into the first and second long holes 132 and 133.
Is mounted on the upper surface of the upper block portion 51 so as to be movable in the longitudinal direction of the first and second long holes 132 and 133.

As shown in FIG. 29, the chucking plate support member 122 is curved downward, and is provided with a spring force in the direction of pressing the chucking plate 121 against the disk table 68.

As shown in FIG. 28, the operation unit 123
Are a base portion 141 and first and second arm portions 142 and 143 bifurcated from the tip of the base portion 141.
It has.

The base part 141 has first and second elongated slide guide holes 144 and 145, and these first and second slide guide holes 144 and 145 are formed.
An elongated connection pin receiving hole 146 provided between the second slide guide holes 144 and 145 is provided.

The base portion 141 is formed by the first and second slide guide members 147 and 148 by using the first and second slide guide holes 144 and 145 to form the upper block portion 51 of the elevator 5. On the top,
The first and second slide guide holes 144 and 145 are slidably mounted within the range of the length, and the connecting pin receiving hole 146 is provided with the first slide guide hole disposed on the upper surface of the upper block portion 51. The connecting pin 60 of the link lever 56 and the second link lever 57 is loosely fitted.

The first and second arm portions 142 and 143
Abuts against the lower surfaces of the first and second protrusions 134 and 135 to push up the first and second protrusions 134 and 135 and the chucking plate support member 122 against their spring force. A chucking plate support member push-up portion 151 for pulling the chucking plate 121 away from the disk D on the disk table 68, and a chucking plate support member descending allowance portion connected to the push-up portion 151 via a downwardly inclined surface 152. 153 are provided.

As shown in FIG. 28, the operation unit 123
Is slid in the direction of arrow A, the chucking plate supporting member lowering permissible portion 153 of the first and second arm portions 142 and 143 is moved by the first and second protrusions of the chucking plate supporting member 122. Parts 134, 13
29, the chucking plate support member 122 is deformed downward by its own spring force to lower the chucking plate 121 toward the disk table 68, as shown in FIG. Then, the disk D is sandwiched between the chucking plate 121 and the disk table 68 so as to be chucked (at this time, the lower block 53 of the elevator 5 is
In conjunction with the operation of 23, the disc table 68 is turned upward to bring the disc table 68 into an elevated state).

As shown in FIGS. 30 to 31, when the operation section 123 is slid in the direction of arrow B, the chucking plate push-up portions 151 and 151 of the first and second arms 142 and 143 are moved. Are the first and second protrusions 134, 135 of the chucking plate support member 122.
The chucking plate support member 122 is pushed up against its own spring force,
The chucking plate 121 is moved to the disk table 6
8 (at this time, the lower block 53 of the elevator 5 is
The disk table 68 is turned downward in conjunction with the operation 3 to bring the disk table 68 down.

The interlocking operation of the operation section 123 and the lower block section 53 is performed by first and second link levers 56 and 57 provided on the lower surface of the upper block section 51 of the elevator 5.
Done through.

As shown in FIG. 27, when the tray 11 is loaded to a predetermined position of the elevator 5 by the loading mechanism, the second lower block rotating operation body 55 of the elevator 5 is loaded by the loading mechanism 7. Moves in the direction of arrow A. (Refer to the section "(2) Description of elevator" for details.)

When the second lower block rotation operation body 55 slides in the direction of arrow A, the second lower block rotation operation body 55 is connected to the second lower block rotation operation body 55 at one end by a fifth shaft 62. The link lever 57 rotates counterclockwise about the fourth shaft 61, and the first link lever 56 rotates clockwise about the second shaft 59 via the connecting pin 60, The first shaft 5 is attached to one end of the first link lever 56.
The first lower block rotating operation body 54 connected via the lever 8 also moves in the direction of arrow A. In other words, the second lower block rotation operating body 55 and the first lower block rotation operating body 54 slide in the direction of arrow A in synchronization with each other, and these first and second lower block rotation operating bodies 55 The second shaft 64 of the lower block portion 53 is positioned on the upper end side of the inclined operation groove 63 provided at the lower portion of the lower block portion 55.
3 is rotated clockwise about the first shaft 52,
The disk table 68 is raised.

As described above, when the second link lever 57 rotates counterclockwise about the fourth shaft 61, the connecting pins 60 and the connecting pins 60 of the first and second link levers 56 and 57 are rotated. Through the connecting pin receiving hole 146, the operation unit 1
23 slides in the direction of arrow B, and the chucking plate support member lowering allowable portions 153 and 153 of the first and second arm portions 142 and 143 are moved by the first and second protrusions of the chucking plate support member 122. The chucking plate support member 1 is located below the portions 134 and 135.
The disk 22 is deformed by its own spring force, and the disk D is pressed against the disk table 68 by the chucking plate 121 to chuck the disk D.

Also, at the time of tray unloading, the first and second lower block rotating operation members 54 and 55 and the operation portion 123 slide in the direction opposite to that at the time of loading, so that the chucking plate support member 122 is moved. To raise the chucking plate 121 to the chucking release position, and rotate the lower block portion 53 downward to separate the disk table 68 from the disk and the tray.

(7) Description of the whole disc changer The discs D are placed on the trays 11... 11 of the disc cartridges 4, respectively.
Is loaded into the cartridge accommodating section 3, the tray 11
11 and the hook engaging portion 91 of the loading mechanism 7 provided on the elevator 5 side can be engaged with each other.

Next, the elevator 5 is moved from the standby position by the elevation control mechanism 6 to the tray 11 on which a desired disk is placed.
To the position corresponding to. Next, the loading mechanism 7 pulls the tray 11 on which the desired disk is placed from the disk cartridge 4 to the elevator 5 side.

When the tray 11 is retracted to a predetermined position, the lower block 53 of the elevator 5 is rotated upward by the loading mechanism 7, and the disk table 68 mounted on the lower block 53 is raised. Then, the disk D in the tray 11 is placed on the disk table 68. In conjunction with the rotation of the lower block portion 53, the disk chucking mechanism 8 is operated, the chucking plate 121 is lowered, and the disk D is chucked on the disk table 68. Recording and / or reproduction of the disc is performed with the disc 11 separated.

When the loading mechanism 7 is operated again after the end of recording and / or reproduction, the lower block 53 of the elevator 5 is rotated downward by the loading mechanism 7 and is separated from the disk D and the tray 11. At the same time, the disk chucking mechanism 8 is operated in conjunction with the rotation of the lower block portion 53, and the chucking plate 121 is lifted to release the disk chucking.

The tray 11 is returned from the elevator 5 to the disk cartridge 4 by the continuous operation of the loading mechanism 7. When the tray 11 is completely returned to the disk cartridge 4 side,
The elevation control mechanism 6 operates again to return the elevator 5 to the standby position.

(8) Description of Another Embodiment of the Lift Control Mechanism FIG. 32 shows a second embodiment of the lift control mechanism. In this embodiment, the first, second, and third operation grooves 85, 87,
The groove portions 85a, 87a, 88 for the ascending / descending operation of the 88
The case where the standby position is set in the middle of the upper and lower ends of “a” (above the position A where the elevator corresponds to the lowermost tray) is shown.

In this case, the first, second, and third operation grooves 85, 87, and 88 have inclined grooves 85 for ascending and descending operations.
There is no need to continuously form a groove for standby at the ends of the a, 87a, and 88a. For example, the first and second grooves are moved from a position where the elevator corresponds to the lowermost tray to a direction corresponding to the tray above it. The elevator can be easily returned to the standby position by moving the lifting operation plates 81 and 82 in the returning direction. Therefore, the amount of movement of the first and second elevating operation plates 81 and 82 for moving the elevator from the uppermost tray to the lowermost tray and the standby position is controlled by the first, second, and third operation grooves 85. , 87, 88 can have a width W in the direction of movement of the up-down operation plate of the up-down operation grooves 85a, 87a, 88a.
Grooves 85a for raising and lowering the operation grooves 85, 87, 88 of
The moving width of the first and second elevating operation plates 81 and 82 can be reduced as compared with the case where standby grooves are continuously provided at the lower ends of 87a and 88a. In this case, a horizontal groove 85d continuous with the lower ends of the first, second, and third operation grooves 85, 87, and 88 slides the first and second elevating operation plates 81 and 82. It is used as a guide hole.

[0106]

The recording and / or reproducing apparatus according to the present invention has the following effects.

(1) In the disk recording and / or reproducing apparatus according to the first and second aspects, the standby position of the recording and / or reproducing section is set to be higher than the position corresponding to the lowermost disk storage section of the disk cartridge. Therefore, the position of the lower end of the recording and / or reproducing unit at the standby position is raised from the lower end position of the recording and / or reproducing unit corresponding to the lowermost disk storage unit, and the recording and / or reproducing at the standby position is performed.
Alternatively, the recording and / or reproducing unit can be protected by reducing the amount of protrusion of the lower end of the reproducing unit, and the recording and / or reproducing apparatus of the disc can be made thin.

(2) In the disk recording and / or reproducing apparatus according to the third aspect, the standby groove is continuously provided at the end of the inclined lifting operation groove of the lifting operation plate. The lifting and lowering of the reproducing unit and the movement to the standby position can be performed by continuously moving the lifting and lowering operation plate.

(3) In the disk recording and / or reproducing apparatus according to the fourth aspect of the present invention, the standby groove is formed by connecting an inclined first groove continuous with an end of the inclined ascending and descending groove to the first groove. Since it is composed of the continuous horizontal second groove, the supported portion of the recording and / or reproducing section is smoothly moved from the above-mentioned ascending and descending operation groove to the horizontal second groove through the inclined first groove. I can guide you.

(4) In the disk recording and / or reproducing apparatus according to the fifth aspect, when the recording and / or reproducing section is made to stand by in the second groove, the lower end of the recording and / or reproducing section becomes the lower end of the mechanical chassis. And the recording and / or reproducing unit is housed in the mechanical chassis, so that the recording and / or reproducing unit can be more reliably protected.

[Brief description of the drawings]

FIG. 1 is a perspective view of a disk autochanger.

FIG. 2 is a perspective view of a disk cartridge.

FIG. 3 is a plan view of the tray as viewed from the bottom side.

FIG. 4 is a front view of the disk cartridge.

FIG. 5 is a sectional view taken along the line AA ′ of FIG. 4 with the tray removed;

FIG. 6 is a sectional view taken along line AA ′ of FIG. 4;

7 is a cross-sectional view of a main part taken along line BB 'of FIG.

FIG. 8 is a sectional view of a principal part taken along the line CC ′ in FIG. 6;

FIG. 9 is a sectional view of a principal part taken along line DD ′ of FIG. 6;

FIG. 10 is a sectional view of a main part in a state where a tray is pulled out.

FIG. 11 is a sectional view of a principal part taken along line EE ′ of FIG. 10;

FIG. 12 is a sectional view of a principal part taken along line FF ′ of FIG. 10;

FIG. 13 is a sectional view of a main part taken along line GG ′ of FIG. 10;

FIG. 14 is a perspective view of an elevator.

FIG. 15 is a sectional view of a main part.

FIG. 16 is a front view of a main part.

17A is a plan view of an upper block portion, and FIG. 17B is a plan view of a lower block portion.

FIG. 18 is an exploded perspective view of a lifting control mechanism.

FIG. 19 is a side view showing a state where the elevator is raised to a position corresponding to the uppermost tray.

FIG. 20 is a side view of a state where the elevator has been raised to a position corresponding to the lowermost tray.

FIG. 21 is a side view of a state where the elevator is located at a standby position.

FIG. 22 is a plan view of a loading mechanism.

FIG. 23 is an exploded perspective view of a loading mechanism.

24 is a sectional view taken along line AA of FIG. 22.

FIG. 25 is a perspective view of a state where the tray is pulled into the elevator side.

FIG. 26 is a plan view of the disk chucking mechanism.

FIG. 27 is a perspective view of a disc chucking mechanism.

FIG. 28 is a plan view of a chucking state.

FIG. 29 is a front view of a chucking state.

FIG. 30 is a plan view of the chucking released state.

FIG. 31 is a front view of a chucking released state.

FIG. 32 is a side view showing another embodiment.

FIG. 33 is a perspective view of a conventional disk autochanger.

FIG. 34 is a perspective view of a conventional disk cartridge.

FIG. 35 is a front view of a conventional disk cartridge.

36A is a plan view of a lower block portion of a conventional elevator, and FIG. 36B is a plan view of an upper block portion of the conventional elevator.

FIG. 37 is a plan view of a conventional elevator.

38A is a front view of a conventional elevator in a chucking state, and FIG. 38B is a front view of a conventional elevator in a chucking released state.

FIG. 39 is an exploded perspective view of a conventional elevating control mechanism.

FIG. 40 is a side view of a conventional lifting control mechanism.

FIG. 41 is a side view of a conventional elevating control mechanism.

[Explanation of symbols]

1 ... Disc auto changer, 2 ... Mechanical chassis,
3. Magazine storage section, 4. Disk cartridge, 5.
Elevator, 6 lifting control mechanism, 7 loading mechanism, 8 disk chucking mechanism, 77, 78, 79
... First, second and third supported shafts (supported portions) of the elevator, 81, 82 ... First and second lifting operation plates, 85 ... First operation grooves, 85a ... Elevating grooves , 85b: communication groove, 85c: standby groove, 86: second operation groove, 87: third operation groove.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Mitsuo Ito 325, Karihara, Naka-Nitta-cho, Kami-gun, Miyagi Prefecture Inside Naka-Nitta Co., Ltd. F-term in Nitta Corporation (reference) 5D072 AB22 BG07 BG09 BH05 EB04 EB06 EB14

Claims (5)

[Claims] 1. A recording and / or reproducing unit for a disk disposed opposite to an opening of a disk cartridge having a plurality of disk storage units each capable of storing a disk; An elevating control mechanism for elevating the disk cartridge to a desired position when recording or reproducing, and for elevating the recording and / or reproducing unit of the disk to a standby position after the recording or reproduction is completed; Wherein the standby position of the recording and / or reproducing section is set above the position corresponding to the lowermost disk storage section of the disk cartridge. 2. The apparatus according to claim 1, wherein the recording and / or reproducing section of the disk is provided on a lifting body having a supported portion supported by the lifting control mechanism so as to be able to move up and down. Disc recording and / or
Or a playback device. 3. The mechanical control chassis according to claim 2, wherein the lift control mechanism comprises: a side plate of a mechanical chassis provided with a lift guide groove for supporting a supported portion of the lift body in a vertically movable manner; A lifting / lowering operation plate provided with an operation groove for supporting a supported portion of the lifting / lowering body at an intersection of the lifting / lowering guide groove, wherein the operation groove includes the lifting / lowering body. An inclined groove for raising and lowering the disk cartridge between the uppermost tray and the lowermost tray, and an end of the groove for lifting and lowering the disk cartridge, and And a standby groove portion for waiting at a position below the position corresponding to the disk storage portion and above the position corresponding to the lowest disk storage portion. Or a playback device. 4. The groove according to claim 3, wherein the standby groove has an inclined first groove continuous with an end of the elevating operation groove, and a horizontal second groove continuous with the first groove. And / or a disk recording and / or reproducing apparatus characterized by comprising: 5. The disk according to claim 4, wherein the second groove is disposed at a position that supports a lower end of the elevating body above a lower end of the mechanical chassis. Playback device.