JP3116910B2 - Disc playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a novel disc reproducing apparatus. More specifically, the present invention relates to a so-called auto-changer type disk reproducing apparatus that takes out an arbitrary one of a plurality of disks stored in a disk storage section inside a housing and plays the disk, and plays the disk inside the housing. By devising a means for moving the disk transport means for transporting, the disk transport means can be moved to a predetermined floor, that is, any one of the disk storage units which individually face the plurality of disk storage spaces without using any special positioning means. It is an object of the present invention to provide a novel disk reproducing apparatus which can be stopped in a state where the floor is accurately positioned on a floor where a disk is mounted on a reproducing unit or the like.

[0002]

2. Description of the Related Art Today, discs include optical discs, magnetic discs, and magneto-optical discs, and there are various disc reproducing apparatuses using such recording medium discs. There is a so-called auto-changer type, that is, a type in which an arbitrary one of a plurality of recording medium disks stored in a disk storage means in a housing is taken out to a reproducing unit at any time to perform recording and reproduction.

In this type of disk reproducing apparatus, usually, a plurality of recording medium disks can be stored in a disk storage means in a hierarchical manner, and a plurality of disk storage spaces of the disk storage means are provided. Disc transport means is provided for moving between a separately opposed position and a mounting position for mounting a recording medium disk to the reproducing section, and when performing reproduction, the disc transport means stores the designated recording medium disk. Is moved to a floor (hereinafter, referred to as a “designated floor”) facing the disk storage space, and the recording medium disk is taken out and moved to a mounting position.
When the reproduction is completed, the disk transport means is moved to the original designated floor, and the recording medium disk is returned to the disk storage space.

[0004]

By the way, in the above-mentioned conventional disk reproducing apparatus, when the disks having different diameters stored in the storage means are mounted on the turntable of the reproducing section, the center of the disk and the turntable are moved. If the centers of the discs did not match, the disc could not be placed correctly when placing the disc on the turntable. If the removed disk cannot be properly placed on the turntable, the disk cannot be rotated, so that the disk cannot be reproduced.

Therefore, attempts have been made to determine the diameter of the disk taken out of the storage means, and to provide a mechanism for correctly mounting the disk on the turntable based on the determined result. However, when such a mechanism is provided, there has been a problem that the configuration of the entire apparatus becomes extremely complicated.

Accordingly, an object of the present invention is to enable positioning of disks having different diameters with a simple configuration.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a disk reproducing apparatus according to the present invention is provided in a main body of the apparatus.
Storage means having a plurality of storage portions for storing a first disk inserted into the apparatus main body and a second disk having a smaller diameter than the first disk; and a first or a second storage medium removed from the storage means. A reproducing unit for reproducing the first or second disk taken out of the storage means, and a position facing each of the plurality of storage parts of the storage means; Transports the first or second disc between the first and second discs and the position where the first or second disc is mounted on the playback unit, and removes the first or second disc taken out of the storage unit.
Position the disc in place and remove it from the storage means.
The ejected first or second disc is mounted on the playback unit.
The first or second disk removed from the storage means immediately before
Disk transport means having positioning means for releasing the positioning of the disk.

Therefore, in the disk reproducing apparatus of the present invention, the first or second disk taken out of the storage means is moved to a position facing each storage part of the plurality of storage parts of the storage means by the disk transfer means. Since the disc is conveyed between the position where the first or second disc is mounted on the reproducing unit and is positioned by the positioning means, even when the disc has a different diameter when mounted on the turntable of the reproducing unit. It can be easily mounted. That is, storage means
Place the first or second discs with different diameters
Positioned in a fixed position, and the first
Or, just before the second disc is loaded in the playback unit,
Since the positioning by the reading means is released, the first
Or, when mounting the second disk, the positioning means
The position of the disc positioned
Even if the position of the
Is released before mounting on the playback unit.
And the movement of the first or second disk is restricted.
Was not properly removed from the storage means in the playback unit
The first or second disk can be mounted.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a disk reproducing apparatus according to the present invention.

In the illustrated embodiment, the disc reproducing apparatus of the present invention is applied to an optical disc player.

Reference numeral 2 denotes an optical disc 3 having a diameter of 12 cm (hereinafter, referred to as a "large disc") and an optical disc 4 having a diameter of 8 cm (hereinafter, referred to as a "small disc"). A disk stocker that can be stored in a hierarchical manner so that it can be freely taken in and out. Five shelf blocks 5, 5,... Comprising a flat stock shelf and two types of large and small extrusion arms rotatably supported by the stock shelf.
Are combined in a hierarchical manner, and a maximum of 5 large-size disks 3 and 5 small-size disks 4
A total of ten optical discs can be accommodated one by one (in FIG. 1, ten optical discs are accommodated).

Each of the five shelf blocks 5, 5,... Has the same configuration.

Reference numeral 6 denotes a stock shelf whose parts are integrally formed of a synthetic resin.

Reference numerals 7 and 8 denote an upper plate and a lower plate of the stock shelf 6, respectively, in the front-rear direction (the front side in FIG. 1 is defined as the front side, and the direction toward the paper back is defined as the rear side. The direction to the left is the direction to the right, the direction to the right is the right side, the direction to the upper side is the upper side, and the direction to the lower side is the lower side. It has a width substantially equal to the diameter of the size disk 3 and is slightly longer than the above diameter in the left-right direction, and has relatively large notches 7a and 8a formed in a substantially U-shape opened at the left end edge thereof. The right ends of the front and rear side edges are curved in a convex arc shape. The upper plate 7 and the lower plate 8 are opposed to each other in the vertical direction with a gap substantially the same as the thickness of the large-sized disk 3 and their side edges are connected by side walls 9, 9. As a result, a thin space 10 (hereinafter, referred to as a “large disc storage room”) having a substantially U-shaped horizontal cross-section and opening at both left and right ends is formed between the upper plate 7 and the lower plate 8. I have.

[0015] Such a large-sized disk storage room 10,
The large-sized disks 3 are stored one by one at 10,..., And as shown by the solid line in FIG. It is done up to the point where it comes into contact with the inner surface of the part.

On the lower surface 8b of the lower plate 8, two partitioning ridges 1 having substantially the same height as the thickness of the small size disk 4 (this thickness is the same as the thickness of the large size disk 3).
The partitioning ridges 11 and 11 are disposed on both front and rear sides of the notch 8a, and the distance except for the right end thereof is substantially the same as the diameter of the small size disk 4. Extend parallel to each other in the left and right direction in a separated state,
The right end is curved in an arc shape toward the notch 8a.

Further, on the upper surface 7b of the upper plate 7, positioning ridges 12, which have the same height as the partition ridges 11, 11,
12 are formed, and these alignment ridges 12, 12 are
When viewed from above, the partitioning ridges 11 and 11 are formed so as to individually contact the outer surfaces.

Reference numerals 13 and 13 denote connecting ridges formed on both front and rear ends of the left end of the upper surface 7b of the upper plate 7, and 14 and 14 correspond to the connecting ridges 13 and 13 of the lower surface 8b of the lower plate 8. It is a connecting piece (refer to FIG. 6) formed at a position corresponding to each,
The connecting pieces 14 are formed to have a substantially L-shape when viewed from the front-back direction. Reference numerals 15 and 15 denote cylindrical spacers formed at right ends of both front and rear side surfaces of the stock shelf 6 so as to partially protrude, and the upper part thereof protrudes slightly above the upper surface 7b of the upper plate 7. .

Then, such five stock shelves 6,
.. Are connecting pieces 14 of one stock shelf 6.
Of the other one of the stock shelves 6 with the connecting ridges 13, 1
3 is engaged with the holes 13a formed in the third stock shelf 3 and the cylindrical spacers 15, 15 and the cylindrical spacers 15, 15 of the other stock shelf 6 are abutted in the axial direction. 6 and the front cylindrical spacers 15, 15,... And the rear cylindrical spacer 1
5, 15,..., Connecting rods, for example, bolts 16,
The bolts 16 are individually inserted, and nuts (not shown) are fastened to the ends of the bolts 16, 16 to be integrated.

The positioning between the two stock shelves 6 and 6 which are superimposed on each other is performed by the partitioning ridges 11 and 11 of one stock shelf 6 and the positioning ridges 12 and 11 of the other stock shelf 6. 12 are separately contacted from the outside, and the cylindrical spacers 15, 15,... Are aligned coaxially in the vertical direction by the connecting rods 16, 16.

The five integrated stock shelves 6, 6,... Are fixed to the right half of the upper surface 18 of the main chassis 17 which has a substantially rectangular shape extending in the left-right direction.

The stock shelves 6, 6,... Are spaced between two adjacent ones at a height substantially equal to the height of the partitioning ridges 11, 11 in other words, the thickness of the small-sized disk 4. , So that the horizontal cross-sectional shape is substantially between the two adjacent stock shelves 6 and 6 and between the lowermost stock shelf 6 and the upper surface 18 of the main chassis 17. Five thin spaces 19, 19,... (Hereinafter, referred to as “small-size disk storage room”) that are U-shaped and open at both left and right ends are formed.

Such a small-sized disk storage chamber 19,
26, the small-sized disks 4 are stored one by one, and the storage of the small-sized disks 4 is performed as shown by a solid line in FIG. This is done until it comes into contact with the inner surface of the right end where

Thus, the disk stocker 2 alternately arranges the disk for the large-size disk and the disk for the small-size disk, so that a total of ten disk storage chambers 10, 10,.
... and 19, 19, ... are formed.

The large-sized disk 3 completely stored in the large-size disk storage room 10 and the small-size disk 4 completely stored in the small-size disk storage room 19
Means that the positions of the left ends thereof are substantially aligned.

In the following description, when disc storage rooms 10, 10,... And 19, 19,. It is referred to as the "first floor disk storage room", and hereinafter, in the downward order, the "second floor disk storage room", "3.
Disk storage room on the floor ”,“ Disk storage room on the 10th floor ”
Say

Reference numerals 20 and 21 denote push-out arms for pushing out the optical discs 3 and 4 stored in the disc storage chamber toward a disc transport section to be described later. One push-out arm 20 is for the large-size disc 3. Yes, the other push-out arm 21 is for the small size disc 4.

Extrusion arm 20 for large disc 3
A long arm 20a having a plate shape curved in a substantially arc shape, a short arm 20b extending from a front end of the long arm 20a and positioned on a straight line passing through both ends of the substantially long arm 20a, and a long arm 20a
A small spring hook 20c protruding from a position near the front end of a side edge farther from the center of the arc, and a pressing portion 2 protruding downward from a position near the front end of the left edge of the short arm 20b.
0d is integrally formed, and the connection between the long arm 20a and the short arm 20b is formed on the upper surface 7b of the upper plate 7 of the stock shelf 6.
Of the short arm 20b is supported at least by the pressing portion 2 of the short arm 20b.
0d is located such that a portion on the tip side protrudes forward from the stock shelf 6.

A small cylindrical push pin 22 is fixed to the lower surface of the turning end of the long arm 20a, and a small cylindrical pressed pin 23 is fixed to the lower surface of the rotating end of the short arm 20b. The lower part of the push pin 22 is the stock shelf 6
Arc-shaped notch 7 formed in the rear right half of the upper plate 7
d and protrudes into the large-sized disk storage chamber 10 (see FIG. 4).

Reference numeral 24 denotes a toggle spring having a generally scissor-shaped spring. One end of one arm 24a is engaged with a spring hook 20c of the pushing arm 20, and the other end of the arm 24b is connected to the right end of the upper plate 7. It is locked in a small hole 7e formed at a position slightly diagonally rearward from the support projection 7c to the right of the support protrusion 7c. The elastic force of the toggle spring 24 causes the push arm 20 to rotate clockwise as viewed from above. A directional or counterclockwise turning force is energized. In other words, the push-out arm 20 has a boundary point at an intermediate position where the spring hooking piece 20c is located on a straight line connecting the tip end of the other arm 24b of the toggle spring 24 and the support protrusion 7c, and is located in a counterclockwise direction from that. When it is coming, the turning power in the counterclockwise direction is energized, and when it comes on the clockwise side from the boundary point, the turning power in the clockwise direction is energized.

Incidentally, such an extruding arm 20 is shown in FIG.
As shown by a two-dot chain line, when the push pin 22 comes to a position where it comes into contact with the left end of the cut groove 7d (hereinafter, referred to as a "push completion position"), it is further turned counterclockwise. Press pin 2 as shown by the solid line in FIG.
2 is stopped at a position where it comes into contact with the right end of the incision 7d (hereinafter, referred to as a "storage completed position"), and is prevented from rotating further clockwise, and the pushing arm 20 is moved to the storage completed position. , The lower part of the push-out pin 22 is positioned so as to approach or lightly contact the outer peripheral edge of the large-sized disk 3 which has been completely stored in the large-sized disk storage chamber 10 from substantially obliquely rearward, Also, the extruding arm 20
Comes to the extrusion completion position, the extrusion pin 22 is located at a substantially middle position in the left-right direction of the large-sized disk storage chamber 10.

Extrusion arm 21 for small size disk 4
Is a long arm 21a having a relatively gentle curved plate shape, a short arm 21b continuous with the front end of the long arm 21a, a spring hook 21c protruding leftward from the front end of the long arm 21a, and a front end of the short arm 21b. Pressing part 2 raised from a close position
1d is formed integrally, and a small support protruding from a position near the front end of the long arm 21a at a position closer to the right end of the notch 8a of the lower surface 8b of the lower plate 8 of the stock shelf 6 than the front side. The short arm 21 b is supported by the projection 8 c so as to be freely rotatable in the horizontal direction, and at least a portion of the short arm 21 b on the tip side from the pressing portion 21 d projects forward from the stock shelf 6.

A small cylindrical push pin 25 is fixed on the upper surface of the rotating end of the long arm 21a, and a pressed pin 26 is fixed on the upper surface of the rotating end of the short arm 21b.
Since the rotating end of the long arm 21a is located at a position slightly lower than the remaining portion, the push-out pin 25 is in the same plane as the partitioning ridges 11, 11 formed on the lower surface of the stock shelf 6. At opposite heights, so that the stock shelves 6,
6,... Are sequentially superimposed on each other.
Are positioned at the same height as the small-sized disk storage chambers 19, 19,... (See FIG. 4).

Reference numeral 27 denotes a toggle spring having the same function as that of the toggle spring 24. The tip of one arm 27a is engaged with the panel hook 21c of the push-out arm 21, and the tip of the other arm 27b is a lower plate. 8 is locked in a small hole 8d formed at a position substantially diagonally left forward from the support protrusion 8c on the front side of the support projection 8c. Thus, the clockwise or counterclockwise turning power is urged. That is, the pushing arm 21 has a spring hook 21 c whose toggle spring 27
When an intermediate position located on a straight line connecting the tip of the other arm 27b and the support protrusion 28c is set as a boundary point, when it comes to the counterclockwise direction from it, the turning force in the counterclockwise direction is: In addition, when it comes to the clockwise direction from the boundary point, the clockwise turning force is urged.

As shown by a two-dot chain line in FIG. 26, the push arm 21 has a front partitioning projection formed on the lower surface 8b of the lower plate 8 such that the position of the long arm 21a near the pivot point is formed. When it comes to a position where it comes into contact with the right end of the ridge 11 (hereinafter, referred to as an “extrusion completion position”), it is prevented from rotating further in the counterclockwise direction, and as shown by a solid line in FIG. When the pressing portion 21d reaches a position (hereinafter, referred to as a "storage completed position") where it comes into contact with a substantially middle portion of the front edge of the stock shelf 6 in the left-right direction (hereinafter, referred to as a "storage completed position"), it is further rotated clockwise. When the push-out arm 21 is at the storage completion position, the push-out pin 25 approaches the outer peripheral edge of the small-size disk 4 stored in the small-size disk disk storage chamber 19 slightly obliquely from the rear. Or touch lightly Is located, the push-out arm 21 comes the extrusion pin 25 to the extrusion end position is positioned substantially intermediate position in the lateral direction of the small-sized disc storage chamber 19.

The pushing arms 20, 20,...
, 21,..., When the optical disk is inserted into the disk storage chamber from the state where it is at the extrusion completion position, the extrusion pins 22, 22,.
Are pressed toward the right by the optical disk 3 or 4, and are moved toward the storage completion position, and the toggle springs 24, 24,..., 27, 27,.
, And from this state, the pressed pins 23, 23,..., 26, 26,.
Is pushed to the right at least beyond the boundary point to the extrusion completion position side (this pressing is performed by an extrusion arm pressing lever described later), and moves toward the extrusion completion position. As a result, the optical disk is pushed out from the disk storage chamber approximately one-third or approximately half to the left, and the disk itself is held at the extrusion completion position.

The pushing arms 20, 20,... And 2
Are all located at the extrusion completion position at least at the time when the assembly of the optical disc player 1 is completed.

By the way, the large-size disk storage room 10,
10, and small-sized disk storage rooms 19, 19, ...
Are arranged alternately and are arranged in a hierarchy, so that the space between the two large-sized disk storage rooms 10 adjacent to each other with one small-sized disk storage room 19 interposed therebetween is used to store the small-sized disk storage room. A so-called dead space portion is generated outside the chamber 19 that is not used for storing a disk.

However, the extruding arms 20, 20,...
, 21, 21,... Are supported on the stock shelves 6, 6,.
When 6,... Are combined,
The pushing arms 20 and 21 will be arranged one by one.

Since the two push arms 20 and 21 located in the same space have slightly different positions in the vertical direction,
Even if there are some overlapping parts, they do not hinder each other's movement.

The pushing arms 20, 20,...
, 21, 21,... Are arranged by using a portion of the space of the disk stocker 2 that is not used for storing the disk, so that the planar shape of the disk stocker 2 is the minimum size necessary for storing the disk. Can be suppressed.

Reference numeral 28 denotes a disk holding spring. The disc holding spring 28 includes a mounting portion 28a fixed to the rear side of the lower surface 8b of the lower plate 8 of the stock shelf 6, and a mounting portion 28a.
a rear elastic piece 28b extending leftward from the rear edge of the stock shelf 6 along the rear side surface of the stock shelf 6;
Are formed integrally with a front elastic piece 28c extending leftward from the front edge of the elastic pieces 28b, 28c.
Pressing portions 28d and 28e which are bent so as to form a substantially C-shape toward the front are formed at a substantially middle portion of the rear side of the stock shelf 6 with the pressing portion 28d of the rear elastic piece 28b. Is located in the notch 9a formed in the middle part of the large-sized disk storage chamber 10, and the front end of the pressing portion 28e of the front elastic piece 28c is located at the rear partition. Break 11 formed in ridge 11
a to protrude into the small-sized disk storage chamber 19 through the a.

When the large-size disk 3 is stored in the large-size disk storage chamber 10 to the storage completion position, the outer peripheral edge of the large-size disk 3 is pressed to a position slightly leftward from a position facing directly behind. Similarly, when the small-sized disk 4 is stored in the small-sized disk storage chamber 19 to the storage completion position, the outer peripheral edge of the small-sized disk 4 faces directly behind. The holding portion 28e is relatively resiliently contacted to a position slightly leftward from the position, so that the optical disks 3, 4 which have been stored in the disk storage room can easily come out of the disk storage room. It is made not to be.

Since the optical disks 3 and 4 are stored in the disk storage chambers 10 and 19 in such a state, the optical disks 3 and 4 are stored in the disk storage chambers 10 and 19 when they are taken out of the disk storage chambers 10 and 19. When moving, the elastic piece 28b or 28c is moved while being slightly pressed rearward.

Reference numeral 29 denotes a stock detection lever for detecting whether or not the optical disk 3 or 4 is stored in the disk storage room 10 or 19 by a detection means provided in an elevator which will be described later. A portion near the left end portion 29a is bent substantially in a crank shape when viewed from above, and a stopper protrusion 29b is formed on the front side surface at a position near the right end.

The protruding piece 3 protrudes forward from a portion near the left end of the front side surface of the stock shelves 6, 6,...
The small insertion holes 30a, 30a,.
.. Are connected to each other, and the protruding pieces 30, 30,... Are stacked in the vertical direction to form the same hole shape as the insertion holes 30a, 30a,. The notches 30b, 30b,... Are formed, and the protrusions 31, which protrude forward from a substantially middle portion in the front-rear direction of the front side surfaces of the stock shelves 6, 6,.
31 are connected to the stock shelves 6, 6,... So that the insertion holes 30a, 30a,.
, And notch portions 30b, 30b,... Are respectively formed with corresponding engagement grooves 31a, 31a,..., And the stock detection levers 29, 29,. 30a, 30a,... Or notch 30
are slidably inserted into the engaging grooves 31a, 31b,... and the right ends thereof are slidably engaged with the engaging grooves 31a, 31a,.

.. Are coil springs which are externally fitted to the left end portions of the stock detection levers 29, 29,.
Are compressed between the intermediate portions of the crank-shaped portions 9, 29,... And the protruding pieces 30, 30,.
The resilient forces of the coil springs 32, 32,... Correspond to the toggle springs 24, 24,.
... is smaller than the resilience.

Therefore, the stock detection levers 29, 29,
... always have coil springs 32, 32, ...
When the rightward moving force is urged by the resilience and is not pressed leftward, as shown in FIG. 27, the stopper projections 29b, 29b,. 31,3
Are held at positions that abut on the.

Then, such a stock detection lever 2
, 29, ... are the pushing arms 20, 20, ...
Pressing parts 20d, 20d,.
Are positioned at the same height as the pressing portions 21d, 21d,.
, 21, 21,... Move from the extrusion completion position to the storage completion position.
.. or 21d, 21d,... abuts against the right ends of the stock detection levers 29, 29,... and presses them to the left, whereby the stock detection levers 29, 29,. Are moved to the storage position shown in FIGS. 25 and 26, that is, a position slightly leftward from the non-storage position.

Thus, the stock detection levers 29, 2
.. Are opposed to the resilient force of the coil springs 32, 32,... While the corresponding pushing arms 20, 20,. And held at the storage position, and the pushing arms 20, 20,...
.. Or move to the extrusion completion position, and are moved to the non-storage position by the resilient force of the coil springs 32, 32,.

Reference numeral 33 denotes a reproducing unit for reproducing a signal recorded on the optical disk 3 or 4, and is provided in a left half of the upper surface 18 of the main chassis 17.

Reference numeral 34 denotes a turntable on which the center of the optical disk 3 or 4 is detachably mounted, and is fixed to a rotating shaft 35a of a spindle motor 35. 34a
A centering guide protrudes from the center of the upper surface of the turntable.

The turntable 34 has the upper surface of the ten disk storage chambers 10, 10,.
19, the lowest 10th floor disk storage room 19
It is provided at a slightly lower height.

Reference numeral 36 denotes an optical pickup, which is opposed to the optical disk 3 or 4 mounted on the turntable 34 from below, and is moved in the radial direction of the optical disk 3 or 4 by a moving means (not shown). Has become.

Reference numerals 37 and 38 denote wall-shaped chassis (not shown in FIGS. 1, 8 and 9) fixed to the main chassis 17 so as to stand up from the front edge and the rear edge, respectively. It has a substantially rectangular plate shape that is long in the left-right direction when viewed from the front-rear direction, and has an elongated hole 37a elongated in the left-right direction at the upper end portion of the front wall-shaped chassis 37 to the left of the disk stocker 2 (see FIG. 2). Are formed.

Reference numeral 39 denotes an entrance / exit frame, which has a plate shape elongated in the left-right direction, and has an opening 39a which is elongated in the left-right direction and slightly longer than the diameter of the large-sized disc 3 at the center in the width direction. The wall-like chassis 37 is fitted in such a manner that an opening edge protruding rearward of the opening 39a is fitted into an elongated hole 37a formed in the front wall-like chassis 37.
The front is fixed.

Reference numeral 40 denotes an outer casing of the optical disc player 1, and an opening 41 elongated in the left-right direction is provided on a front panel 41 thereof.
The opening 39a of the entrance / exit frame body 39 is opposed to the opening 41a from the inner side in close proximity, and the opening 41a and the opening 39a allow the outer casing 40 of the optical disk 3 or 4 to the disk transport unit described later. A disk entrance 42 for insertion and removal from outside is configured.

The disk entrance 42 is provided at the same height as the disk storage room 10 on the first floor of the disk stocker 2.

Reference numeral 43 denotes a shutter for opening and closing the disk entrance 42. The shutter 43 has a width slightly larger than the width of the disk entrance 42, and has a plate shape elongated in the left-right direction. It is slidably engaged in the up-down direction with the engaging portions 39b protruding from the left and right ends, thereby being arranged so as to be vertically movable between the doorway frame 39 and the front panel 41, At the lower ends of the left and right ends, substantially oval-shaped connecting long holes 43a, 43a (FIG. 8)
And FIG. 9).

Reference numeral 44 denotes an opening / closing slider (see FIGS. 8 and 9) which is also elongated in the left-right direction and is disposed in a thin space between the lower part of the entrance / exit frame 39 and the wall-shaped chassis 37. I have. And the opening / closing slider 44 is 2
Guide pins 45, 45 protruding forward from the wall-shaped chassis 37 are slidably engaged with the two guided long holes 44a, 44a so as to be slidable within a certain range in the left-right direction. Supported, and is constantly urged to move rightward by the tensile force of the tension spring 46;
A long slot 44 for control inclined to the left at both left and right ends.
b, 44b are formed, and furthermore, a substantially U-shaped pressed portion 44c, which opens toward the front as viewed from above from the left end of the lower edge thereof, is provided so as to protrude downward. 8, the left ends of the guided elongated holes 44a, 44a are connected to the guide pins 45, 45 as shown in FIG.
(Hereinafter, referred to as “right end position”).

Reference numerals 47, 47 denote shutter opening / closing arms (FIG. 8)
And FIG. 9), and one end of the guide pin 4
The connecting pins 47a, 47a, which are rotatably supported by the members 5 and 45 and protrude forward from the rotating ends thereof, are further fixed to the back of a substantially intermediate portion in the longitudinal direction. Small controlled pins 47b, 47b are slidably engaged with control long holes 44b, 44b formed in the opening / closing slider 44.
a, 47a are connecting long holes 43a, 43a of the shutter 43;
Are slidably engaged with each other.

Accordingly, when the opening / closing slider 44 slides, the long slots 44b, 44b press the controlled pins 47b, 47b of the shutter opening / closing arms 47, 47 upward or downward. 4
7 is rotated substantially vertically, whereby the shutter 4
3 will be moved up and down.

While the opening / closing slider 44 is at the right end position, the lower ends of the control slots 44b, 44b are controlled by the controlled pins 47b, 47b of the shutter opening / closing arm 47.
As a result, the shutter 43 is held at the closing position for closing the disk entrance 42 as shown in FIG. 8, and the opening / closing slider 44 is pressed leftward from that state. , The left end position shown in FIG.
The right ends of the guided elongated holes 44a, 44a
When the shutter opening / closing arms 47 are moved upward to a position where they come into substantially contact with the shutters 43 and 45, the shutter 43
To the open position shown in FIG. 9, that is, the position where the disk entrance 42 is opened. Further, when the leftward pressing of the opening / closing slider 44 is released from this state, the opening / closing slider 44 It is moved to the right end position by the pulling force, whereby the shutter opening / closing arms 47, 47 are rotated downward, and the shutter 43 is returned to the closed position.

Thus, the disk entrance 42 is opened and closed.

The opening / closing slider 44 is pressed to the left by pressing the pressed portion 44c by a cam slider described later.

Reference numeral 48 denotes an open / close detection switch attached to the front of the wall-shaped chassis 37, that is, a switch for detecting whether the disk entrance 42 is open or closed, and a pin plunger extending in the left-right direction. 48a
Is attached to the wall-shaped chassis 37 in a direction facing the pressed portion 44c of the opening / closing slider 44 from the left.

While the opening / closing slider 44 is at the right end position, that is, while the shutter 43 is at the closing position, the pressed portion 44c is moved by the pin plunger 48a.
And in this state, the open / close detection switch 4
8 outputs a first signal, whereby it is detected that the disk entrance 42 is closed.

When the opening / closing slider 44 moves to the left end position from this state, the pressed portion 44c presses the pin plunger 48a, whereby a second signal is output from the opening / closing detection switch 48. It is detected that the shutter 43 has moved to the open position, that is, that the disk entrance 42 has been opened.

In this manner, the open / close state of the disk entrance 42 is detected.

In this case, when the optical discs 3, 4 and other foreign matter are stuck in the disc entrance 42, the shutter 43 does not return to the closed position, so that the opening / closing slider 44 cannot be returned to the right end position. The plunger 48a remains pressed. Therefore, when the second signal is output from the open / close detection switch 48 even though the leftward pressing of the open / close slider 44 is released, it is detected that some foreign matter is caught in the disk entrance 42. Is done.

Reference numeral 49 denotes a disk transport unit, that is, for selectively transporting the optical disk 3 or 4 between the disk stocker 2, the reproducing unit 33, and the outside of the outer casing 40. , 38, an elevator 50 movably supported only in the vertical direction, and the elevator 50
Rotating chassis 5 rotatably supported in the range of 90 °
1 and two insertion guide plates 52, 53 fixed to the rotating chassis 51 so as to face in parallel with each other in the vertical direction.
And a pull-in roller 55 disposed at a disk insertion opening 54 formed by the insertion guide plates 52 and 53.

Are guided horizontally on both front and rear sides of the elevator 50, and these guided pins 56, 56,... The disk slider 49 is slidably engaged with the stepped cam groove, and the disk slider 49 is vertically moved stepwise by eleven steps when the cam slider moves left and right. ing.

The rotating chassis 51 has, for example, a position in which the disk insertion port 54 is turned to the right as shown in FIG. 1 (hereinafter referred to as a "stocker facing position") and a disk insertion port 54 as shown in FIG. Is rotated between a position in which is directed forward (hereinafter, referred to as an “entrance-facing position”),
Such rotation is performed only when the disk transport unit 49 is at the top of the 11 movement stages.

Each of the cam sliders 57 and 58 has a substantially rectangular plate shape which is long in the left-right direction.
Racks 57b, 58a are formed along the left-right direction at positions near the right end of the racks 57a, 58a, 58a.
The front cam slider 57 is slidably engaged with guide pins 59 projecting forward from the front wall-shaped chassis 37 into the guided grooves 57a. Further, the rear cam slider 58 is provided with the rear wall-shaped chassis 38 in its guided grooves 58a, 58a.
The guide pins 59 projecting rearward from the slidable engagement are slidably engaged with the wall-shaped chassis 37, 38 so as to be movable in the left-right direction within a certain range. I have.

The upper left end surface 57c (hereinafter referred to as a "pressed end surface") of the front cam slider 57 is opposed to the pressed portion 44c of the opening / closing slider 44 from the right.

Then, these cam sliders 57 and 5
8 facing each other in the left-right direction
Cam grooves 60, 6 each having the same structure
.. Are formed, and these cam grooves 60, 6 are formed.
Are formed so that most of them extend along a position inclined downward and to the left, and have a substantially step-like shape in which a number of steps are continuous.

That is, the cam groove 60 has its upper end 60 ₁
(Hereinafter referred to as "first step") is formed to be slightly longer in the left-right direction, and a portion extending in a direction inclined downward to the left at a constant gradient from the _first step 601 is a lower end. And 10 stages 60 ₂ , 60 ₃ ,.
· 60 ₁₁ is made continuously in this order from the top, these stages 60 _1, 60 _2, the height difference between two adjacent stages, ie, 60 ₁₁ are equal both its magnitude disk stocker 2 Disk storage chambers 10, 19, 10, 19,
.. And the height difference between the disc storage room 19 on the 10th floor and the turntable 34.

Each of the steps 60 _{2 to} 60 _{11 is referred} to as “second step”, “third step”,.
.. Say "11th stage".

The left end of the front surface of the rear cam slider 58 is notched shallowly as shown in FIG.
An engagement recess 58c is formed in the upper end surface of this portion.

Reference numeral 58d denotes a switch pressing piece that horizontally protrudes forward from a position near the right end of the upper end of the rear cam slider 58.

Reference numeral 61 denotes a moving mechanism for moving the two cam sliders 57 and 58 in synchronization with each other, and is disposed on the lower surface of the main chassis 17.

Reference numeral 62 denotes a rotating shaft rotatably supported by the main chassis 17, extending in the front-rear direction, and pinion gears 63, 63 fixed to both ends thereof. These pinion gears 63, 63 are racks for the cam sliders 57, 58. 57
b, 58b. The reduction gear portion 63a is formed integrally with the rear pinion gear 63.

A gear portion chassis 64 is fixed to a portion of the lower surface of the main chassis 17 which is deflected to the rear side so as to face with a slight gap therebetween, and a right end portion of the gear portion chassis 64. A motor 65 for moving the cam slider is fixed to the rear end, and a worm 66 is fixed to a rotating shaft of the motor 65. The gear chassis 64
Worm wheel 67 rotatably supported at the rear end of the worm wheel
a is meshed with the worm 66, and a small gear 67b formed integrally with the worm wheel 67a is meshed with a reduction gear 68a rotatably supported by the gear chassis 64, and formed integrally with the reduction gear 68a. Small gear 68b
Are engaged with the reduction gear portion 63a of the pinion gear 63.

When the motor 65 rotates, the rotation is transmitted to the worm 66, the worm wheel 67a, the small gear 67b, the reduction gear 68a, the small gear 68b, the rear pinion gear 63, and the rotation shaft 62, and Is rotated, whereby the two pinion gears 63, 63 are rotated synchronously, so that the racks 57b, 58b of the cam sliders 57, 58 are simultaneously sent in the same direction, and thus the two cam sliders 57, 58 are moved. They are moved in the left and right direction in synchronization with each other.

The two front and rear guided pins 56, 56,... Provided on the elevator 50 are formed by vertically extending cut grooves 6 formed on the wall-shaped chassis 37, 38.
9, 69,... (See FIGS. 3 and 7) slidably, so that the disk transport section 49 is supported by these wall-shaped chassis 37, 38 so as to be vertically movable. Also, the tips protruding outward from the cut grooves 69, 69,... Of the guided pins 56, 56,. It is movably engaged.

Therefore, when the cam sliders 57 and 58 move, the guided pins 56, 56,
Are successively changed to higher floors or lower floors, whereby the disk transport unit 4 is moved.
9 is moved up and down so as to follow the floor.

Then, such a cam slider 57,
58 and the disk storage chamber 1 at the position of the disk transport unit 49
, 19, 19,..., The reproduction unit 33 and the disk entrance 42 are as follows.

That is, the cam sliders 57 and 58 are
2, FIG. 1, as shown in FIG. 7, the first step 60 ₁ of the cam groove 60 guided pins 56, 56 of the left end portion or the elevator 50 in the middle portion or the right end, three supporting the ... Position (hereinafter, the position where the guided pin is supported at the left end is referred to as “first floor position”, the position where the guided pin is supported at the intermediate portion is referred to as “B ₁ floor position”, and the position where the guided pin is supported at the right end is “B ₂ When the disc transport unit 49 is at one of the uppermost floor positions, that is, when the disc insertion port 54 is at the same height as the disc storage room 10 and the disc entrance / exit 42 of the disc stocker 2. And the cam sliders 57, 58
The guide pin in the second stage 60 ₂ of 56, 56, ...
Comes to a position (hereinafter, referred to as a “second floor position”) where the disk insertion port 54 is held at the same height as the disk storage chamber 19 on the second floor. the third stage 60 ₃ to 10 floor position 10 ₁₀ guided pins at each stage up to 56, 56, a position for supporting the ... (hereinafter, "third floor position", "fourth floor position", ... "10
Floor position ". ), The disc transport unit 49 has its disc insertion port 54 set in the third-floor disc storage room 10, the fourth-floor disk storage room 19,.
9 and each is held at the same height, and the cam slider 57,
58 As shown in FIG. 24, the 11-th stage 60 ₁₁ guided pins 56, 56, a position for supporting the ... (hereinafter, referred to as "the 11th floor position".) When it came to the disc transport unit 49 However, as shown in the figure, the optical disc 3 or 4 is held at a position where the optical disc 3 or 4 is chucked relatively to the turntable 34 (hereinafter, referred to as a “chucking position”).

[0089] The rotation of the rotary chassis 51 is performed in a state in which the cam slider 57, 58 is coming to the B ₁ floor position.

Reference numeral 70 denotes a reference position detection switch (see FIGS. 2 and 3).
And a pressed piece 70a that switches the connection state of the contact between when pressed and when it is not pressed, is fixed to the right end of the upper end of the front surface of the rear wall-shaped chassis 38, and the pressed piece 70a is It is pressed by a switch pressing piece 58d provided on the side cam slider 58, and the pressing is performed when the cam sliders 57, 58 come between the _first floor position and the B1 floor position.

A floor detecting plate 71 elongated in the left and right direction is horizontally projected from the lower edge of the rear cam slider 58 forward and is arranged on the floor detecting plate 71 at a constant pitch in the left and right direction. 13 light-transmitting notches 71a, 71a,.
・ ・ Is formed.

Incidentally, the light-transmitting notches 71a, 71a,.
The arrangement pitch of B ₂ of the cam sliders 57 and 58
It has the same size as a fixed arrangement pitch of 13 positions from the floor position to the 11th floor position.

Reference numeral 72 denotes a floor detection sensor, which is fixed to the main chassis 17 so that the floor detection plate 71 moves between a light emitting element 72a and a light receiving element 72b which are arranged to face each other. Therefore, the cam slider 58 is moved and the floor notch 7 of the floor detection plate 71 is moved.
Each time 1a is located between the light emitting element 72a and the light receiving element 72b, one pulse signal is output.

After the cam sliders 57 and 58 move to the left, a predetermined signal from the reference position detection switch 70, that is, the signal when the pressed piece 70a is pressed is output, when the detection sensor 72 there is the first output of the pulse signal is when the cam slider 57, 58 has reached the _first floor position B, the cam slider 57 by detecting the output state of this signal, It is detected that the cam slider 58 has arrived at the reference position, and by counting the rotation direction of the motor 65 and the number of pulse signals output from the floor detection sensor 72 from that state, Position, in other words, on which floor the disk transport unit 49 is located.

The elevator 50 has a substantially rectangular flat plate-shaped main portion 73 and narrow side pieces 74 and 75 protruding downward from both front and rear ends of the main portion 73 and are integrally formed of a metal plate. , The front side piece 74 is formed longer to the right than the rear side piece 75, and the guided pins 56, 56,... ing.

Reference numeral 76 denotes a sun gear supporting portion which forms a substantially central portion of the main portion 73.
3 is formed so as to be continuous with the remaining portion and slightly below the remaining portion, and has a circular hole 76a formed in the center thereof.

A motor mounting piece 73a is provided at a position near the rear end on the left side of the main portion 73, and a sensor mounting piece 73b is provided to protrude downward from the front end of the right side edge.

The rotating chassis 51 has a disk-shaped main part 7 having a diameter slightly smaller than the diameter of the large-sized disk 3.
7 and leg pieces 78 and 79 projecting downward in parallel from two positions substantially opposite to each other across the center of the main portion 77 of the outer peripheral edge of the main portion 77 are formed integrally by a metal plate. The main portion 77 has a circular hole 77a at the center thereof,
Also, three guided elongated holes 77b, 77b, and 7 extending in an arc shape centered on the center of the main portion 77 are provided near the outer peripheral edge.
7b (see FIG. 11) are formed, and each of the guided elongated holes 77b, 77b, 77b has a length of approximately 90 ° at the central angle.

Reference numerals 80, 80, 80 denote guide pins having a flange formed at the lower end.
0 and 80 are the three guided slots 77b, 77b and 7
7b are separately inserted, and the upper ends thereof are fixed to the lower surface of the main portion 73 of the elevator 50, whereby the rotating chassis 51 is positioned so as to face the lower surface of the elevator 50 at a slight interval. And is supported by the elevator 50 so as to be rotatable within a range of a central angle of about 90 °.

Numeral 81 denotes an arc-shaped elongated plate-shaped gear plate having a length of about 90 ° at a central angle, having a tooth portion 81a formed on an outer edge thereof, and a gear plate 81 provided on a lower surface of the rotating chassis 51. The tooth portion 81a is attached in a state that it protrudes slightly from the outer peripheral edge of the rotating chassis 51.

The gear plate 81 is provided at a position opposite to the disk insertion opening 54 with the center of the rotating chassis 51 interposed therebetween.

Reference numerals 82a and 82b denote position detecting projections formed on the main portion 77 of the rotating chassis 51 so as to protrude from the outer peripheral edge thereof, and are provided at positions spaced apart from each other at a center angle of approximately 90 °. .

Reference numeral 83 denotes an orientation detection switch for detecting the orientation of the rotating chassis 51 (see FIGS. 2, 15, and 16).
And a pair of leaf-shaped contacts 84a and 84a, respectively.
a, 85a and 85a, and first and second leaf switches 84 and 85 having the contactors 84a, 84a and 85a.
The contact ends of the a and 85a are attached to the lower surface of the main part 73 of the elevator 50 so that the contact ends of the rotation chassis 51 intersect with the rotation trajectories of the position detection projections 82a and 82b.

When the rotating chassis 51 comes to the position facing the stocker, as shown in FIGS. 2 and 15, one of the position detecting projections 82a is connected to the first leaf switch 8 as shown in FIG.
4, and comes into contact with the other contact 84a, and when the rotating chassis 51 comes to the entrance-facing position, as shown in FIG. 16, the other position detecting protrusion 82b Abuts on one contact 85a of the second leaf switch 85 to bring it into contact with the other contact 85a, whereby a predetermined signal is output from the first leaf switch 84 or the second leaf switch 85. Is done.

Therefore, by detecting this signal, it is detected which direction the rotating chassis 51 is currently facing.

The above-described insertion guide plates 52 and 53 are each formed of a synthetic resin.

The upper insertion guide plate 52 is
It has a substantially semicircular plate shape having substantially the same size as half of the main portion 77, and a substantially U-shaped cutout portion 52a is formed at the center of a side edge extending linearly, and a spine is formed on the upper surface thereof. Are protruded.

The upper insertion guide plate 52
Is fixed to the rotating chassis 51 so as to face a region of the lower surface of the main portion 77 of the rotating chassis 51 opposite to a region where the gear plate 81 is provided with the center thereof interposed therebetween. The insertion guide plate 52 and the main part 7 of the rotating chassis 51
7 are provided at intervals corresponding to the height of the spacer projections 52b, 52b,....

The lower insertion guide plate 53 has substantially the same size as the upper insertion guide plate 52, and has a relatively large notch 53a in the shape of a substantially equilateral trapezoid formed at a side edge extending linearly. The intermediate portion 53b is bent in a crank shape, and the two portions 53 on both sides of the intermediate portion 53b are provided.
One of the portions c and 53d having an arc-shaped outer peripheral edge 5
3c is formed at a position slightly higher than the other portion 53d.

Then, such a lower insertion guide plate 53
Both ends of the other portion 53d in the longitudinal direction are fixed to the lower surfaces of the horizontal lower pieces 78a, 79a of the two leg pieces 78, 79 of the rotating chassis 51.

Thus, one portion 53c of the lower insertion guide plate 53 and a part of the upper insertion guide plate 52 are opposed to each other with an interval approximately several times the thickness of the optical disks 3 and 4. The space between these opposed portions is the disc insertion port 54.
It has become.

Reference numerals 86 and 87 denote roller support arms, whose substantially central portions are two leg pieces 78 and 79 of the rotating chassis 51.
The pull-in roller 55 is rotatably supported by support pins 88, 88 projecting horizontally from the outer surface of the pull-in roller 55 at one of its rotation ends, that is, the rotation end closer to the disk insertion port 54.
Both ends of the shaft 55a are rotatably supported, and pressed projections 86a, 87a projecting outward from each other are formed at the other rotating end.

The pull-in roller 55 has a length substantially equal to the diameter of the rotating chassis 51, and a rubber roller body 55b is press-fitted around the shaft 55a except for both ends thereof. The roller body 55b has a substantially drum shape.

Then, the other rotating ends of the roller support arms 86, 87 and the lower pieces 78a, 79a of the leg pieces 78, 79.
And tension springs 89, 89 are stretched between them.
Therefore, the roller support arms 86 and 87 are constantly urged to rotate in the direction in which one of the rotating ends moves upward, whereby the pull-in roller 55 is moved upward by the upper insertion guide plate 5.
2 is elastically contacted with the lower surface.

Incidentally, the draw-in roller 55 is connected to the disc insertion port 54.
Is located slightly closer to the center of the rotating chassis 51.

Reference numeral 90 denotes one leg 78 of the upper surface of the main portion 77 of the rotating chassis 51, that is, a position closer to the leg 78 located on the front side when the rotating chassis 51 is at the position facing the stocker. Input gear rotatably supported, 9
Reference numeral 1 denotes a first transmission gear that always meshes with the input gear 90, and a bevel gear 91a is integrally formed on the lower surface thereof.

Reference numeral 92 denotes a second roller rotatably supported by the support pin 88 supporting one roller support arm 86.
A bevel gear 92a is integrally formed on one side of the transmission gear, and the bevel gear 92a meshes with the bevel gear 91a of the first transmission gear 91.

Reference numeral 93 denotes a speed increasing gear rotatably supported at an intermediate position between one rotation end of the roller support arm 86 and the support pin 88, and two large and small gears 93a coaxial with each other. And 93b are formed integrally, and the large gear portion 93a is formed with the second transmission gear 92 and the small gear portion 93.
b is meshed with a gear 94 fixed to one end of the rotation shaft 55a of the pull-in roller 55, respectively.

Therefore, when the input gear 90 is rotated, the rotation is transmitted to the first transmission gear 91, the second transmission gear 92, the speed increasing gear 93, and the gear 94, and the rotation shaft 55a is rotated. , The pull-in roller 55 is rotated.

A drive mechanism 95 for selectively rotating the input gear 90 or the rotating chassis 51 is provided in the elevator 50.

Reference numeral 96 denotes a motor fixed to the motor mounting piece 73a of the elevator 50, 97 denotes a worm fixed to the rotating shaft of the motor 96, 98 denotes a worm wheel 98a and an output gear 98b which are coaxial with each other. The worm wheel 98a is rotatably supported by a support shaft 99 projecting downward from the main portion 73 of the elevator 50, and the worm wheel portion 98a is meshed with the worm 97 from the right side.

Reference numeral 100 denotes a disk-shaped gear support plate fixed to the sun gear support portion 76 of the elevator 50.
A sun gear 101 having a substantially ring shape and having teeth formed on the outer periphery thereof is rotatably fitted on the gear support plate 100.

Reference numeral 102 denotes a drive pulley rotatably supported by the main portion 73, and reference numeral 103 denotes a driven pulley rotatably supported by a portion of the sun gear support 76 which protrudes beyond the remaining portion. Pulley 102 and driven pulley 1
The gear parts 102a and 103a are formed integrally with 03. Then, an endless transmission belt 104 is stretched over the driving pulley 102 and the driven pulley 103, and the driven pulley 1
The gear portion 103a of No. 03 is always meshed with the sun gear 101.

Reference numeral 105 denotes a frico lever, which comprises a main lever 106 and a limiter lever 107 positioned so as to overlap the main lever 106 from above. And
The main lever 106 is formed integrally with a substantially L-shaped main portion 106a as viewed from above and below and a substantially U-shaped supported portion 106b including a part of the main portion 106a as viewed from the side, The supported portion 106b is supported by a lever support pin 108 protruding downward from the main portion 73 of the elevator 50 so as to be rotatable in the horizontal direction.
A flat gear-shaped frico gear 109 is rotatably supported at the rotating end of the longer arm extending substantially obliquely forward from the support pin 108 out of the support pin 108. It is located between the portion 102a and the tooth portion 81a of the gear plate 81 provided on the rotating chassis 51, and is always meshed with the output gear portion 98b of the drive gear 98.

The limiter lever 107 has a left end rotatably supported by the lever support pin 108, and a spring abutment 107a projecting downward from a position near the rotation end. A small controlled pin 107b is vertically provided on the lower surface of the rotating end, and is inserted into the hole 106c formed in the rotating end of the shorter arm of the main portion 106a with a margin.

Reference numeral 110 denotes a torsion spring. The tip of one arm 110a is elastically contacted with the supported portion 106b of the main lever 106 from substantially forward, and the tip of the other arm 110b is a spring contact piece of the limiter lever 107. The spring contact piece 107a is in contact with the front side of the hole 106c of the main lever 106.

Reference numeral 111 denotes a tension spring stretched between the main lever 106 and the elevator 50, and has a tension smaller than the elastic force of the torsion spring 110.
Therefore, the rotating force in the clockwise direction when viewed from above is urged to the frico lever 105. In this state, the frico gear 109 is engaged with the gear portion 102a of the driving pulley 102.

Reference numeral 112 denotes a switching slider for switching the position of the above-mentioned flico lever 105.
The left side of the lower end of the lower surface of the main portion 73 is movably supported in the left-right direction, has a substantially elongated trapezoidal control elongated hole 113, and has a protruding piece 112a projecting downward. Projecting rearward, the pressed pin 11
The distal end of the cam 4 projects rearward through a notch 75a formed in the rear side piece 75 of the elevator 50 and is located in a shallow notch formed in the left end of the front surface of the rear cam slider 58. .

The tip of the controlled pin 107b provided on the limiter lever 107 is connected to the switching slider 1
The control elongated hole 113 is slidably engaged with the control elongated hole 113 formed in the control pin 12, and the control elongated hole 113 is engaged with the controlled pin 107b when its left end 113a or right end 113b is engaged with the controlled pin 107b. The control pin 107b is formed so as not to apply a pressing force in any of the clockwise direction and the counterclockwise direction.

Incidentally, the cam slider 58 of the elevator 50
The cam slider 58 is moved one position from the first floor position.
Switching slider 11 in the state where it comes to the first floor position
The control pin 10 is located at the left end 113a of the control long hole 113 of FIG.
7b is positioned. The position of the switching slider 112 in this state is hereinafter referred to as a “first position”.

Therefore, when the cam slider 58 is located between the first floor position and the eleventh floor position, the main lever 10
6 is held at a position where the frico gear 109 meshes with the gear portion 102a of the drive pulley 102 (hereinafter, referred to as a "roller rotation position").

Also, the cam slider 58 moves from the second floor position to the first floor position, in other words, the disk transport unit 4
9 moves to the top floor position, FIG. 17, FIG. 18, FIG.
As shown in FIG. 9, the pressed pin 1 of the switching slider 112
14 is the engaging recess 5 formed in the cam slider 58;
8c is engaged from below.

Therefore, the cam slider 58 is moved from this state.
When There moves to B ₁ floor position, changeover slider 11 inner surface of the engagement recess 58c presses the pressed pin 114
2 is moved to a second position shown in FIG. 18, that is, a position shifted a predetermined distance to the left from the first position. As a result, the controlled pin 107b of the limiter lever 107 is pressed substantially rearward so as to be located at the intermediate portion 113c of the control slot 113, and therefore, the frico lever 105 is rotated counterclockwise as viewed from above. , Main lever 106
Is a position (hereinafter, referred to as a position where the frico gear 109 meshes with the tooth portion 81a of the gear plate 81 fixed to the rotating chassis 51.
This is referred to as "the chassis rotation position." ).

In this case, just before the controlled pin 107b rides on the intermediate portion 113c of the control elongated hole 113, the frico lever 105 reaches the above-described chassis rotation position, and then the limiter lever 107 is further rotated counterclockwise. Moved, the spring contact piece 107a of the limiter lever 107 is moved.
Is separated from the front edge of the hole 106c of the main lever 106, so that the elastic force of the torsion spring 110 acts as a force for pressing the main lever 106 to the position when the chassis is rotated.

[0135] When the cam slider 58 is moved to B ₂ floor position, the mobile switching slider 112 further to the left, whereby, said changeover switching slider 112 19
, Ie, the position where the controlled pin 107b is located at the right end 113b of the control slot 113.

Accordingly, in this state, the pressing of the limiter lever 107 substantially backward, which has been performed so far, is released, so that the main lever 106 is rotated integrally with the limiter lever 107 by the pulling force of the tension spring 111. It is returned to the hour position.

In this state, the cam slider 58 moves from B to
_When returning to the _first floor position, the switching slider 112 is moved to the second position, and the main lever 105 is moved to the chassis rotation position. When the cam slider 58 is returned to the first floor position, the switching slider 112 is moved to the first position. The main lever 105 is moved to the roller rotation position, respectively.
Further, when the cam slider 58 moves rightward from this state, the disc transfer section 49 is moved downward, so that the pressed pin 114 of the switching slider 112 moves downward from the engaging recess 58c of the cam slider 58. The switching slider 112 escapes and is thus kept in the first position.

[0138] Thus, only the rotation chassis 51 when Furikogiya 109 of the cam slider 58 comes to the _first floor position B
In this state, the rotation of the motor 96 is transmitted through the worm 97 -the driving gear 98 -the frico gear 109 -the toothed portion 81a of the gear plate 81 in this state. Further, the Furikogiya 109 when the cam slider 58 is located at the position other than the _first floor position B drive pulley 10
2 gear portion 102a, and in this state, the motor 96
Rotation of the worm 97-drive gear 98-frico gear 10
9-drive pulley 102-transmission belt 104-driven pulley 103-gear portion 103a of driven pulley 103-sun gear 101-drawing roller 55 in a system of gears from input gear 90 to gear 94 fixed to drawing roller 55. Will be transmitted to

[0139] As described above, the disc transport unit 49 is coming on the top floor position in a state in which the cam slider 58 has come on the _first floor position B, this time, rotating chassis 51
Is located at the stocker-facing position.
9 meshes with the clockwise side end of the tooth portion 81a of the gear plate 81 of the rotating chassis 51 when viewed from above. Therefore, from this state, the motor 96 rotates forward, that is, the drive gear 9 rotates.
When the rotating shaft 8 is rotated in a clockwise direction as viewed from above, the frico gear 109 is rotated in a counterclockwise direction, so that the gear plate 81 is rotated in a clockwise direction. The disk insertion port 54 is moved to the position, and the disk insertion port 54 faces the disk entrance 42.

When the motor 96 rotates in the reverse direction from this state, the frico gear 109 is rotated in the clockwise direction, so that the gear plate 81 is rotated in the counterclockwise direction, whereby the rotating chassis 51 is moved to the position facing the stocker. Be moved.

Thus, the rotation of the rotating chassis 51 is performed.

[0142] On the other hand, when the motor 96 is reversed when the cam slider 58 is located at the position other than the _first floor position B, the sun gear 101 is rotated in the clockwise direction, whereby the pull-in roller 55, the rotation chassis 51 When it is at the stocker-facing position, it is rotated counterclockwise when viewed from the front (hereinafter referred to as the “pull-in direction”), and when the motor 96 rotates forward, the sun gear 101 rotates counterclockwise. Then, the drawing-in roller 55 is rotated in the sending direction opposite to the drawing-in direction.

Therefore, when the optical disk 3 or 4 is inserted into the disk insertion slot 54, the optical disk 3 or 4 is inserted at the center of the drawing roller 55, that is, as shown by the two-dot chain line in FIG. These insertion guide plates 52 are inserted into the gap between the small-diameter portion and the upper insertion guide plate 52 and
Therefore, when the pull-in roller 55 rotates in the pull-in direction from this state, the optical disk 3 or 4 is pulled in by the rotation of the pull-in roller 55.

This pull-in is performed until the center of the optical disk 3 or 4 substantially coincides with the center of the rotating chassis 51 as shown in FIG. 23, and the disk transport unit 49 moves to the chucking position. Until the retracting roller 55 rotates in the feeding direction.
And the pull-in roller 55.

When the pull-in roller 55 rotates in the sending direction from the state where the optical disk 3 or 4 is held by the rotating chassis 51 in this way, the optical disk is sent out from between the insertion guide plate 52 and the pull-in roller 55. I will go.

Reference numeral 115 denotes a chucking plate for chucking the optical disk 3 or 4 to the turntable 34. The chucking plate 115 has a disk shape having a diameter slightly smaller than the diameter of the small-size disk 4, and has an axial direction at its center. A protrusion 115a having a short cylindrical shape is formed on the inside, and a magnet 115b having a ring shape and a positioning protrusion 115c positioned at the center of the magnet 115b are fixed inside the protrusion 115a. A flange plate 116 is rotatably supported on the upper surface.

Reference numeral 117 denotes a plate holding plate, which is one of two portions 117b and 117c located on both sides of the substantially trapezoidal intermediate portion 117a.
A semi-circular cutout 117d is formed at the tip of the other part 117, and a short L-shaped abutment piece 117e, which is substantially L-shaped when viewed from the side from the tip of the other part 117c, protrudes downward. .

Reference numeral 118 denotes a support pin disposed near the gear plate 81 on the lower surface of the rotating chassis 51 so as to extend in parallel with the pull-in roller 55.
The center of the arc of the notch 117d is
1 and is positioned so as to overlap the lower surface of the rotating chassis 51 in a state substantially coinciding with the center of
7c is rotatably supported by the support pin 118, and is spring-fitted to the support pin 118 by a spring 119.
One part 117b is energized to rotate upward in a direction to move upward.

Then, such a plate holding plate 117 is used.
Push-up arm 117 located on both sides of notch 117d
f and 117f are located between the chucking plate 115 and the flange plate 116 thereof. Therefore, while the abutment piece 117e of the plate holding plate 117 is not pressed from below, the chucking plate 115 is pushed up. It is pressed against the lower surface of the upper insertion guide plate 52 by the arms 117f and 117f.

Since the chucking plate 115 is provided in this manner, when the optical disk 3 or 4 is drawn into the disk transport section 49, the chucking plate 115 is relatively moved as shown in FIG. Are positioned so as to overlap the optical disc 3 or 4 from above.

Reference numeral 120 denotes a disk positioning mechanism provided on the lower surface of the main portion 77 of the rotating chassis 51.

Reference numerals 121 and 122 denote slide levers which are arranged at positions opposite to each other with respect to the center of the main portion 77 of the rotating chassis 51 so as to extend in a direction parallel to the pull-in roller 55 and are fixed in the longitudinal direction thereof. Is supported by the main portion 77 so as to be slidable within the range, and the moving forces in the opposite directions are urged by the tension springs 123 and 124.

Reference numerals 125, 125 denote an inlet side opening / closing arm, 12
Reference numerals 6 and 126 denote rear opening / closing arms. These opening / closing arms 125, 125, 126 and 126 are supported by the main portion 77 so as to be rotatable in the horizontal direction.
Numerals 5 are arranged at positions respectively corresponding to both ends of the disc insertion port 54, and are connected to each other via the entrance side slide lever 121 so as to rotate simultaneously and in opposite directions. The arms 126, 126 are separately arranged at positions near both ends of the gear plate 81, and are connected to each other via a rear side slide lever 122 so as to rotate simultaneously and in opposite directions.

The entrance-side opening / closing arms 125, 125
The pressed pins 127 and 127 are pushed from the rotating end portion that is positioned so as to protrude from the rotating chassis 51, and
Positioning pins 128, 128 protrude downward from the rotating end portions of the rear opening / closing arms 126, 126, respectively.

Reference numeral 129 denotes an interlocking arm, which is disposed at a position near the other leg 79 of the main portion 77, and whose intermediate portion is supported by the main portion 77 so as to be rotatable in the horizontal direction. Is rotatably connected to the rear side slide lever 122, and the other end is opposed to one end edge of the entrance side slide lever 121.

When the pressed pins 127, 127 are not pressed in a direction to increase the distance between them,
The slide levers 121 and 122 are the coil springs 12
In this state (the state shown in FIG. 15), the entrance side opening / closing arms 125, 125 have two pressed pins 127, 127 connected to the pull-in roller 55. The rear opening / closing arm 1 is held at a standby position at an initial position separated by a distance slightly smaller than the diameter of the small-sized disc 4 in a parallel direction.
26 and 126 are small-size disks 4 in a direction in which the two positioning pins 128 and 128 are parallel to the draw-in roller 55.
Are kept at a position waiting at an initial position separated from each other by a distance slightly smaller than the diameter of

Most of the above members are arranged between the upper insertion guide plate 52, the plate holding plate 117, etc. and the main portion 77 of the rotating chassis 51.
127 and the lower portions of the positioning pins 128, 128 are located at the same height as the disc insertion slot 54.

When the large-sized disc 3 is inserted into the disc insertion slot 54, as shown by the solid line in FIG. 20, the outer peripheral edge of the large-sized disc 3 opens the pressed pins 127, 127, that is, between them. Press in the direction to increase the distance.
Thereby, the inlet side opening / closing arms 125, 125 are rotated in the direction in which the pressed pins 127, 127 are opened, and the inlet side slide lever 121 is moved to the leg piece 79 side to rotate the interlocking arm 129. The back slide lever 122 is moved to the leg piece 78 side to open and close the arm 126,
126 is opened, ie, the positioning pins 128, 128
Are moved in the opening direction, that is, the direction in which the distance between them is enlarged, and these movements are
As shown by the two-dot chain line in FIG.
When it comes on the straight line connecting 27 and 127, it reaches the maximum amount. Then, when the optical disk 3 is further inserted,
The inlet side opening / closing arms 125 are rotated in the closing direction of the pressed pins 127, 127, that is, in the direction of reducing the distance between them, but the positioning pins 128, 12
When the large-size disc 3 is once closed, it is pressed again in the opening direction by the large-size disc 3, and the insertion of the large-size disc 3 is performed by the outer peripheral edge of the This is done up to the point where it comes into contact with 117e. In this state, the center of the large-sized disk 3 is substantially coincident with the center of the chucking plate 115 and the pressed pins 127 and 127 are not in contact with each other. The positioning pins 128 and 128 are elastically contacted with the outer peripheral edge of the large-sized disk 3.

On the other hand, when the small-sized disk 4 is inserted, first, as shown by the solid line in FIG. 21, the small-sized disk 4 comes into contact with the pressed pins 127 and 127 and opens them in the opening direction. Press. However, in this case, since the diameter of the small-sized disk 4 is small, the small-sized disk 4 is separated from the pressed pins 127 and 127 before the half of the small-sized disk 4 is inserted deeper than the draw-in roller 55, and therefore, the positioning pins 128 and 128 is returned to the initial position before the small size disk 4 comes into contact after slightly opening.

Thus, the insertion of the small size disk 4
As shown by the one-dot chain line in the same figure, it is blocked when it comes into contact with the positioning pins 128, 128 coming to the initial position,
In this state, the center of the small-sized disk 4 substantially coincides with the center of the chucking plate 115.

Reference numeral 130 denotes a microswitch-like trigger switch attached to the lower surface of the rotating chassis 51, and its pin flange 130a is connected to the entrance side opening / closing arm 12
5, the pin plunger 130a is pressed in a state where the opening / closing arm 125 is at the initial position, and a signal output when the pressing is released. (Hereinafter referred to as an “insertion detection signal”), the motor 96 is rotated in the reverse direction as a trigger.

Therefore, when the optical disk 3 or 4 is inserted into the disk insertion slot 54, as described above, the opening / closing arms 125, 125 move at least once in the opening direction, so that the pressing on the pin plunger 130a is once performed. As a result, the pull-in roller 55 is rotated in the pull-in direction to pull in the optical disk.

Reference numerals 131 and 132 denote pull-in detection sensors, which are mounted on the light emitting elements 131a and 132a mounted on the upper surface of the main portion 77 of the rotating chassis 51 and the other portion 53d of the lower insertion guide plate 53, respectively. Light receiving element 131
b, 132b, and these light emitting elements 131a, 13b
2a and the light receiving elements 131b and 132b are vertically opposed to each other across a light transmitting hole formed in the main portion 77 and the upper insertion guide plate 52, and one of the pull-in detection sensors 131 is provided with the insertion guide plate 52 and the pull-in roller 55. And the other pull-in detection sensor 132 is disposed at a position corresponding to a position slightly inward from the outer peripheral edge of the small-sized disk 4 in which the insertion has been completed. It is arranged at a position corresponding to a position slightly closer to the outside.

In the following description, the light emitting element 131
The signal output when the light from the light-receiving elements 131b and 132b is irradiated with light from the light-receiving elements 131b and 132b is referred to as a first signal, and the signal output when the irradiation is stopped is referred to as a second signal.

Therefore, when the small-sized disk 4 reaches the retracted position, only one of the pull-in detection sensors 131 receives the light-receiving element 131b of the light emitted from the light-emitting element 131a.
The second signal is output because the irradiation of the disk is interrupted, and the first signal is still output from the other pull-in detection sensor 132. By detecting these signals, the pull-in of the small-sized disk 4 is completed. Position is detected, and the detection of these signals is used as a trigger to trigger the pull-in roller 55.
Is stopped in the retraction direction.

On the other hand, when the large-size disk 3 is pulled in, the second signals are sequentially output from both the pull-in detection sensors 131 and 132. By detecting these signals, the optical disk pulled in is detected. Is a large-sized disk 3. In this case, since the two signals are output immediately before the pull-in of the large-sized disk 3 is completed, a predetermined time, for example, from the time when the second signal is output from only one pull-in detection sensor 131, for example, The rotation of the pull-in roller 55 in the pull-in direction is stopped at the time when about 6 seconds have elapsed, assuming that the pull-in is completed.

Reference numeral 133 denotes a push arm pressing lever for moving the push arms 20, 20,... Or 21, 21,.

The pushing arm pressing lever 133 has a long and narrow plate shape in the left and right direction, and a pressing piece 133a
However, pressing pieces 133b are respectively protruded rearwardly from the position near the right end.

The pushing arm pressing lever 133 is connected to the main part 7 of the front piece 74 of the elevator 50.
3 is slidably supported in the left and right directions within a certain range on the rear surface protruding rightward from
0, the moving force toward the left is always urged by the pulling force of the tension spring 134 stretched between 0 and the pressed piece 133a is described later while the pressing piece 133a is not pressed to the right. Is held at a position close to the pressing pin provided on the return arm of the disc loading / unloading mechanism from the right.

Reference numeral 135 denotes a disk presence / absence sensor for detecting whether an optical disk is stored in the disk storage chambers 10, 10,... And 19, 19,. A light-emitting element 135a and a light-receiving element 135b are attached to the sensor attachment piece 73b formed on the main portion 73 and are opposed to each other in the front-rear direction.

Incidentally, such a disk presence / absence sensor 13
The light-emitting element 135a and the light-receiving element 135b of No. 5 are the stock detection lever 29, which is at the storage position when viewed from above,
.. Are positioned so as to face each other across the left end portions 29a, 29a,... Of the light emitting element 135a and the light receiving element 135b is irradiated with the light. A signal indicating that "there is a disk" is output in a state where the irradiation is cut off.

Therefore, as described above, the stock detection levers 29, 29,..., Or the disk storage chambers 10, 10,.
When the optical disk is stored in the storage position, and when the optical disk is not stored, the optical disk is moved to the non-storage position.
When the stock detection lever 29 corresponding to the disk storage room is at the storage position when the floor corresponding to a certain disk storage room is reached, as shown in FIGS. 25 and 26,
The left end 29a of the stock detection lever 29 is relatively positioned between the light emitting element 135a and the light receiving element 135b of the disk presence / absence sensor 135 to cut off the light irradiation on the light receiving element 135b.
Is output, and when the stock detection lever 29 is at the non-storage position, as shown in FIGS.
In this case, the light receiving element 13
Since the irradiation of light to 5b is not interrupted, a signal of "no disk" is output.

In this way, it is detected whether or not an optical disk is stored in the disk storage room.

136 is the pushing arm pressing lever 133
And pushes the optical disk housed in the disk stocker 2 to the extruding arms 20, 20,.
The disk storage chambers 10, 10,.
, And a disk ejecting mechanism that functions to completely return the optical disk sent out from the disk transport unit 49 to the disk stocker 2 to the disk storage chamber, and most of the mechanism. Is provided in a substantially right half of the lower surface of the main chassis 17.

Reference numeral 137 denotes a slender plate-shaped delivery arm. A substantially middle position thereof is rotatably supported by a support shaft 138 projecting downward from the main chassis 17, and is provided at a position rearward from the support shaft 138. A cam elongated hole 137a extending in the longitudinal direction is formed in a portion thereof, and a tall pressing pin 139 is erected from a front rotating end thereof, and most of the pressing pin 139 is formed on a front side surface of the main chassis 17. It protrudes upward through the formed recess 17a which is long in the left-right direction.
It extends to a position higher than zero.

Reference numeral 140 denotes a first arm rotation gear rotatably supported at a position slightly rearward from the support shaft 138 in the main chassis 17, and a cam pin 141 is directed downward from a portion near the outer periphery thereof. And the cam pin 141 is provided with a long cam hole 137a of the delivery arm 137.
Therefore, while the arm rotation gear 140 makes one rotation, the delivery arm 137 is rotated so as to make one reciprocation with a predetermined stroke, whereby the pressing pin 139 of the delivery arm 137 is rotated. Reciprocates once in a substantially right-left direction at a position close to the front side surface of the disk stocker 2.

Reference numeral 142 denotes a return arm, which is also in the form of an elongated plate, has a cam elongated hole 142a extending in the longitudinal direction thereof, and has one end projecting from a position near the rear of the lower surface of the main chassis 17. The support shaft 143 is rotatably supported, and a tall push pin 144 is also erected from the end of the support shaft 143. Most of the push pin 144 is a part of the main chassis 17 of the disk stocker 2. It projects upward through an arc-shaped notch 17b formed on the left side surface, that is, at a position corresponding to substantially the rear half of the surface where the openings of the disk storage chambers are arranged, and the upper end thereof is located on the first floor of the disk stocker 2. It is located at approximately the same height as the disk storage room 10.

Reference numeral 145 denotes a second arm rotating gear, which is rotatably supported on the main chassis 17 at a position slightly leftward from the support shaft 143, and has a cam plate 1 on its lower surface.
The cam pin 147 is fixed downward, and a cam pin 147 protrudes downward from the tip of the cam plate 146. The cam pin 147 is slidably engaged with the long cam hole 142 a of the return arm 142. Therefore, the second arm rotation gear 145
The arm 142 is rotated so as to make one reciprocation with a predetermined stroke during one rotation, whereby the push pin 144 makes one reciprocation substantially in the front-rear direction at a position close to the left side surface of the disk stocker 2. .

The cam plate 146 has an arm 1 protruding laterally.
46a is provided.

Reference numeral 148 denotes a motor mounted on the gear unit chassis 64. A worm 149 is fixed to a rotating shaft of the motor 148, and the worm 149 meshes with a worm wheel 150 rotatably supported by the gear unit chassis 64. ing.

Reference numeral 151 denotes the second arm rotation gear 145.
This is a reduction gear constantly meshed from substantially the front side.

Reference numeral 152 denotes a swinging lever, one end of which is supported by the gear chassis 64 so as to be rotatable in the horizontal direction, and a gear support shaft 153 protrudes upward from the rotating end. The swing gear 154 is rotatably supported by the gear support shaft 153. The swing gear 154 is formed integrally with two large and small gear portions 154a and 154b coaxial with each other.
4b is always meshed with a gear (not shown) integrally formed with the worm wheel 150, and the large gear portion 154a is located between the reduction gear 151 and the first arm rotating gear 140.

Incidentally, such a swing gear 154 is in elastic contact with the swing lever 152 via friction means (not shown). Therefore, when the worm wheel 150 rotates, the swing lever 152 is connected to the worm wheel 150. The rotational force in the same direction as the rotational direction is urged, so that the large gear portion 154a meshes with the reduction gear 151 or the first position.
Is pressed to a position where it can be meshed with the arm rotation gear 140 of FIG.

Reference numeral 155 denotes a first arm position detection switch for detecting the initial position of the delivery arm 137;
Reference numeral 56 denotes a second arm position detection switch for detecting the initial position of the return arm 142. The arm position detection switches 155 and 156 are pressed pieces 155a that switch the connection state of the contacts when pressed. 1
56a, the first arm position detection switch 1
55 is a piece 155 pressed by the rotating end when the rear rotating end of the delivery arm 137 comes to the right end of the rotating range.
a, the second arm position detection switch 156 is arranged to be in a position where the second arm rotation gear 14 is pressed.
5 and is positioned slightly diagonally rearward to the left, and the pressed piece 156a is formed by an arm 146a of the cam plate 146.
Are provided on the rotation trajectory of the tip of the.

Then, when the motor 148 rotates in a direction for rotating the worm wheel 150 in a counterclockwise direction as viewed from above (hereinafter referred to as "forward rotation"), the swing gear 1 is rotated.
The large gear portion 154a of the first arm rotating gear 140
And rotate it counterclockwise, so that the delivery arm 137 is rotated, and the delivery arm 137 is rotated.
However, as shown by a solid line in FIG. 13, when the pressing pin 139 comes to a position (hereinafter, referred to as an “initial position”) located at the left end of the cutout portion 17 a formed in the main chassis 17, the rear side is located. The rotating end presses the pressed piece 155a of the first arm position detection switch 155, and in this state, the rotation of the motor 148 is stopped according to the signal output from the arm position detection switch 155.

Therefore, while the motor 148 is not rotating forward, the delivery arm 137 is held at the initial position, and in this state, the pushing pin 139 of the pushing arm 139 of the pushing arm pushing lever 133 provided on the elevator 50 is used. Pressed piece 13
3a is located near or slightly in contact with the left side.

Thus, when the motor 148 rotates forward, the first arm rotating gear 140 makes one rotation, thereby
Since the delivery arm 137 is moved to the right and then returned to the initial position, the pressing pin 139 moves the pushing arm pressing lever 133 to the right during this time.

When the motor 148 rotates in the reverse direction, the large gear portion 154a of the swing gear 154 meshes with the reduction gear 151 and rotates it clockwise as viewed from above. The gear 145 is rotated in the counterclockwise direction to rotate the return arm 142, and the return arm 142 has a pressing pin 144 formed in the main chassis 17 as shown by a solid line in FIG. 17b
(Hereinafter referred to as “initial position”)
Comes, the arm 146a of the cam plate 146 presses the pressed piece 156a of the second arm position detection switch 156. In this state, the rotation of the motor 148 is stopped according to the signal output from the arm position detection switch 156. You.

Accordingly, while the motor 148 does not rotate in the reverse direction,
The return arm 142 is held at its initial position, and in this state, the pressing pin 144 is located at a position slightly escaped backward from the left side surface of the disk stocker 2.

Thus, when the motor 148 rotates in the reverse direction, the second arm rotation gear 145 makes one rotation, thereby
The push pin 144 once moves to a position slightly in the middle of the left side surface of the disk stocker 2 and then returns to the original position.

The operation of the optical disk player 1 configured as described above for storing and taking out the optical disk 3 or 4 from / to the disk stocker 2, taking it in / out of the outer casing, and reproducing in the reproducing unit 33 are as follows. It is performed as follows.

As described above, the disk stocker 2 can accommodate up to five large-size disks 3 and five small-size disks 4 at a time. In this storage, the disk transport unit 49 holds the optical disk 3 or 4 inserted into the outer casing 40 from the disk entrance 42 and moves to a position facing an empty disk storage chamber according to the size of the optical disk. Out to the disk storage room.

That is, when a command is issued to store the disc in the disc stocker 2 from outside the outer casing 40, the cam sliders 57, 58 are _first moved to the B1 floor position (see FIG. 1). In this state, the disk transport unit 49
Are located at the top floor position, the rotating chassis 51 is located at the stocker-facing position, and the switching slider 112 is located at the second position (see FIG. 18). Is engaged. In this state, the motor 96 rotates forward and the rotating chassis 51
Is moved to the entrance-facing position (see FIG. 16). As a result, the disk insertion port 54 of the disk transport unit 49 faces the disk entrance 42. Then, the cam slider 57 and 58 to the B ₂ floor position (see FIG. 7),
At this time, the pressing end surface 57c of the front cam slider 57
Presses the pressed portion 44c of the opening / closing slider 44 to the left to move it to the left end position. This allows
The shutter 43 is moved to the open position, and the disk entrance 42 is opened. In this state, since the switching slider 112 is at the third position, the frico gear 109 is engaged with the gear portion 102a of the driving pulley 102 (see FIG. 19).

Then, when the desired optical disk 3 or 4 is inserted into the outer casing 40 from the disk entrance 42 (see FIG. 16), the optical disk is inserted into the disk insertion port 54 of the disk transport unit 49, and at this time, First, the inlet side opening / closing arms 125, 125 are moved to the open position, and an insertion detection signal is output from the trigger switch 130, whereby the motor 96 rotates in the reverse direction and the pull-in roller 55
Is rotated in the retraction direction. As a result, the optical disk is held by the disk transport unit 49, and the type of the optical disk as the large-size disk 3 or the small-size disk 4 is determined by the pull-in detection sensor 131.
And 132.

[0195] When the pull-in of the optical disk 3 or 4 has been completed, it returns the switching slider 112 to the second position by moving the cam slider 57 and 58 to the B ₁ floor position, therefore, Furikogiya 109 of the rotating chassis 51 Tooth part 81a
Then, the motor 96 is reversed to move the rotating chassis 51 to the stocker-facing position.

At this time, the front cam slider 57
Of the pressing end face 57c escapes rightward, the opening / closing slider 44 is returned to the right end position by the pulling force of the tension spring 46, whereby the shutter 43 is moved to the closing position and the disk entrance 42 is closed.

From this state, the disk transport section 49 is moved to a floor facing an empty disk storage chamber corresponding to the size of the optical disk held therein. This movement is performed by moving the cam sliders 57 and 58 from the first floor position to the tenth floor position to a position corresponding to the floor to which the disk transport unit 49 is to be moved.

In this state, since the switching slider 112 has been moved to the first position, the frico gear 109 is engaged with the gear portion 102a of the driving pulley 102, whereby the pull-in roller 55 can be rotated. Become.

The detection of which disk storage chamber is currently empty is performed prior to other operations, for example, when the power is turned on. This detection is performed by moving the disk transport unit 49 from the first floor to the tenth floor, and the disk presence / absence sensor 135 causes the stock detection levers 29, 29,
Is performed by detecting the position of
The detection result is stored by the storage means.

Thus, the disk transport section 49 is moved to the floor opposite to the empty disk storage room.

When the disk transport section 49 comes to a predetermined floor, the disk insertion port 54 is opposed to the disk storage chamber, and the motor 96 rotates forward to rotate the pull-in roller 5.
5 is rotated in the sending direction, whereby the optical disk 3 or 4 is sent out and inserted into the disk storage chamber approximately two-thirds for the large-sized disk 3 and approximately half for the small-sized disk 4. (A state shown by a two-dot chain line in FIGS. 27 and 28).

At this time, the optical disk to be sent out is pushed by the pressed pins 12 of the entrance-side opening / closing arms 125, 125.
7, 127 are once pressed, so that the open / close arm 1
25, 125 once move in the opening direction and return to the initial position, whereby two different signals are sequentially output from the trigger switch 130.

When the above signal is output, the rotation of the motor 96 is stopped and the rotation of the pull-in roller 55 is stopped, and then the motor 148 is rotated in reverse, whereby the return arm 142 is reciprocated one time. You.

Therefore, as shown in FIGS. 27 and 28, the push-in pin 144 of the return arm 142 is partially inserted into the disk storage chamber, and abuts against the outer peripheral edge of the optical disk from substantially diagonally rearward left to press it. Therefore, the optical disk is further pushed into the disk storage chamber, and when the push pin 144 comes to the right end of the movement stroke, the optical disk is stored in the disk storage chamber as shown by a chain line in FIGS. Is completed.

At this time, the push arm 20 or 21 corresponding to the disk storage chamber is moved to the storage completion position, and the movement causes the stock detection lever 29 corresponding to the disk storage chamber to move to the storage position. Moved to

Thus, the optical disk is stored in the disk storage room.

As described above, the disk stocker 2
When the optical disk stored in the optical disk 3 or 4 (hereinafter, referred to as a “designated disk”) in which the cam slider 58 moves and the disk transport unit 49 is designated when the optical disk stored in the disk transport unit 49 is taken out. The floor is moved to the floor corresponding to the disk storage room.

When the disk transport section 49 reaches a predetermined floor, the motor 148 rotates forward and the delivery arm 137 reciprocates once. As a result, the pushing pin 139 of the delivery arm 137 moves the pushing arm pushing lever 133 to the right as shown in FIGS. As a result, the pushing piece 133b of the pushing arm pushing lever 133 is moved to the pushing arm 20 or 2 corresponding to the disc storage chamber.
1 and presses the pin 23 or 26 to the right, so that the pushing arm 20 or 21 is moved to the pushing completion position, whereby the designated disc is pushed out of the disc storage chamber and the disc is pushed out. Transport unit 49
25 (see FIGS. 25 and 26).
Then, the draw-in roller 55 is rotated in the draw-in direction to draw the optical disk to the draw-in completion position (see FIG. 23).

At this time, the stock detection lever 29 corresponding to the disk storage chamber is moved to the non-storage position by the elastic force of the coil spring 32.

[0210] Thus, the designated optical disk is taken out to the disk transport section 49.

The chucking and reproduction of the optical disk 3 or 4 on the turntable 34 are performed as follows.

The chucking is performed by the cam sliders 57 and 58.
Is performed by moving to the 11th floor position and moving the disk transport unit 49 to the chucking position.

When the designated disk is to be reproduced, the disk transport unit 49 is moved to the chucking position following the completion of the operation of removing the specified disk from the disk transport unit 49, and is inserted from outside the outer casing 40. If the reproduced optical disk 3 or 4 (hereinafter referred to as “external disk”) is to be immediately reproduced, the disk transport unit 4 of the optical disk 3 or 4
Subsequent to the end of a series of operations of retracting the rotary chassis 51 and moving the rotating chassis 51 to the stocker-facing position, the disk transport unit 49 is moved to the chucking position.

Immediately before the disk transport section 49 reaches the chucking position, the roller support arms 86, 87
The pressed projections 86a and 87a are provided on the front and rear sides of the upper surface 18 of the main chassis 17, respectively.
(See FIG. 3 and FIG. 10).
Since the pressed projections 86a, 87a are relatively pressed upward, the roller support arms 86, 87
As shown in FIG. 4, it is rotated clockwise as viewed from the front. At substantially the same time, a positioning release lever 158 (see FIG. 1) provided on the other leg 79 of the rotating chassis 51.
0) of the main chassis 17.
Projection 159 protruding from the rear side (see FIGS. 3 and 10)
The positioning release lever 158 is rotated by being relatively pressed by the
9 is rotated counterclockwise as viewed from above. As a result, the back opening / closing arms 126 are further moved to the open position, and the positioning pins 128, 128 are laterally separated from the outer peripheral edge of the optical disc.

Therefore, when the disk transport section 49 comes to the chucking position, both the pull-in roller 55 which has been in elastic contact with the optical disk from below and the positioning pins 128, 128 which have elastically contacted the outer peripheral edge of the optical disk are all in the optical disk. , Whereby the optical disk is placed on the turntable 34 (see FIG. 24).

Further, the plate holding plate 117 is almost simultaneously with the disk transport section 49 reaching the chucking position.
The lower end of the abutment piece 117e projects from the center of the left end of the upper surface 18 of the main chassis 17 (see FIGS. 3 and 1).
0, etc.) and is pressed relatively upwards,
Thus, the plate holding plate 117 is rotated clockwise as viewed from the front side (see FIG. 24).

Thus, the chucking plate 1
15 is magnetically attracted to the turntable 34 with the optical disk interposed therebetween.

At this time, the centering guide 34a of the turntable 34 is inserted into the center hole 3 of the optical disk 3 or 4.
a, 4a, whereby the optical disc 3 or 4 is aligned with the turntable 34.

Thus, the designated disk or the external disk is chucked on the turntable 34, the optical disk is rotated from this state, and the reproduction is performed while the optical pickup 36 moves in the radial direction of the optical disk.

When a command to end the reproduction is issued, the disc transport section 49 is moved to at least the floor above the chucking position. Therefore, the protrusion 15 of the main chassis 17
7, 157 against the roller support arms 86, 87, the protrusion 159 against the positioning release lever 158, and the protrusion 160 against the plate holding plate 117 are released. 117, the pull-in roller 55 is elastically contacted with the insertion guide plate 52 across the optical disc, and the positioning pin 128,
128 is elastically contacted with the outer peripheral edge of the optical disk, whereby the optical disk is held by the disk transport unit 49 again.

When returning the designated disk to the original disk storage room, the disk transport unit 49 is moved to the floor opposite to the disk storage room, and when storing the external disk in the disk stocker, the disk transport unit 49 is moved. Is moved to a floor corresponding to an empty disc storage room corresponding to the size of the optical disc, and rotation of the draw-in roller 55 in the sending direction, movement of the return arm 142, and the like are performed as described above. It is stored in the storage room.

When the reproduced external disk is not stored in the disk stocker 2 or when the designated disk is taken out of the outer casing 40, the disk transport section 49 comes to the uppermost floor position, and the rotating chassis 51 moves to the position facing the entrance. The optical disk is moved, and the optical disk is
It is sent out of 0.

[0223]

As is apparent from the above description, the disc reproducing apparatus of the present invention is provided in the main body of the apparatus.
Storage means having a plurality of storage portions for storing a first disk inserted into the apparatus main body and a second disk having a smaller diameter than the first disk; and a first or a second storage medium removed from the storage means. A reproducing unit for reproducing the first or second disk taken out of the storage means, and a position facing each of the plurality of storage parts of the storage means; Transports the first or second disc between the first and second discs and the position where the first or second disc is mounted on the playback unit, and removes the first or second disc taken out of the storage unit.
Position the disc in place and remove it from the storage means.
The ejected first or second disc is mounted on the playback unit.
The first or second disk removed from the storage means immediately before
Disk transport means having positioning means for releasing the positioning of the disk.

Therefore, in the disc reproducing apparatus of the present invention, the first or second disc taken out of the storage means is moved to a position opposed to each storage section of the plurality of storage sections of the storage means by the disk transport means. Since the disc is conveyed between the position where the first or second disc is mounted on the reproducing unit and is positioned by the positioning means, even when the disc has a different diameter when mounted on the turntable of the reproducing unit. It can be easily mounted. That is, storage means
Place the first or second discs with different diameters
Positioned in a fixed position, and the first
Or, just before the second disc is loaded in the playback unit,
Since the positioning by the reading means is released, the first
Or, when mounting the second disk, the positioning means
The position of the disc positioned
Even if the position of the
Is released before mounting on the playback unit.
And the movement of the first or second disk is restricted.
Was not properly removed from the storage means in the playback unit
The first or second disk can be mounted.

The present invention is not limited to the one using the optical disk shown in the embodiment, but can also be applied to various types of auto-changer type disk reproducing devices using magnetic disks and other disks.

[Brief description of the drawings]

FIG. 1 shows an embodiment in which the disc reproducing apparatus of the present invention is applied to an optical disc player together with FIG. 2 to FIG. 28, and FIG.

FIG. 2 is a plan view of the entire player in a state where an outer casing is cut away.

FIG. 3 is a perspective view showing a chassis unit, a reproducing unit, a cam slider, and a disk stocker.

4 is an enlarged cross-sectional view of the disk stocker in which no optical disk is stored, taken along line IV-IV in FIG. 2;

FIG. 5 is an exploded perspective view of a shelf block of the disk stocker.

FIG. 6 is a perspective view of the stocker of the disk stocker as viewed from below.

FIG. 7 is a front view of the main part when the disk entrance is open.

FIG. 8 is an enlarged vertical sectional view of a disk entrance opening / closing mechanism in a closed state.

FIG. 9 is an enlarged vertical sectional view of a disk entrance opening / closing mechanism in an open state.

FIG. 10 is an enlarged sectional view of a main part along line IX-IX in FIG. 2;

FIG. 11 is an exploded perspective view showing a main part of a disk transport unit and a cam slider.

FIG. 12 is an enlarged front view of a cam slider.

FIG. 13 is a cross-sectional view of a main part along line XII-XII in FIG. 1;

FIG. 14 is an exploded perspective view showing a part of a disk transport unit excluding an elevator.

FIG. 15 is a horizontal cross-sectional view of a disk transport unit.

FIG. 16 is a horizontal cross-sectional view of a main part showing a state where the rotating chassis is located at a position facing the entrance.

FIG. 17 is an enlarged bottom view of the main part, together with FIGS. 18 and 19, showing the movement of the drive mechanism provided in the elevator in order.

FIG. 18 is an enlarged bottom view of a main part showing the movement of a drive mechanism provided in the elevator in order.

FIG. 19 is an enlarged bottom view of a main part showing the movement of a drive mechanism provided in the elevator in order.

FIG. 20 is a schematic horizontal sectional view for explaining the movement of a disk positioning mechanism when a large-size disk is inserted.

FIG. 21 is a schematic horizontal sectional view for explaining the movement of a disk positioning mechanism when a small-sized disk is inserted.

FIG. 22 is an enlarged vertical sectional view of a main part, together with FIGS. 23 and 24, showing an operation from removal of the optical disk stored in the disk stocker to chucking to the turntable in order.

FIG. 23 is an enlarged vertical sectional view of a main part, showing in order the operation from removal of the optical disk stored in the disk stocker to chucking to the turntable.

FIG. 24 is an enlarged vertical sectional view of a main part, showing in order the operation from the removal of the optical disk stored in the disk stocker to the chucking of the turntable.

FIG. 25 is a horizontal sectional view of a main part for describing an operation of pushing out a large-size disc from a disc stocker.

FIG. 26 is a horizontal cross-sectional view of a main part for describing an operation of pushing a small size disc from a disc stocker.

FIG. 27 is a horizontal sectional view of a main part for describing an operation of storing a large-sized disk in a disk stocker.

FIG. 28 is a horizontal sectional view of a main part for describing an operation of storing a small-sized disk in a disk stocker.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Disc reproduction | regeneration apparatus, 2 ... Storage means, 3 ... 1st disk, 4 ... 2nd disk, 10, 19 ... Storage part, 33 ... Reproduction part, 34 ... Turntable, 4
9: disk transport means, 57, 58: moving mechanism, 1
15: chucking plate, 120: positioning means, 128: positioning part

Claims (5)

(57) [Claims] 1. An apparatus provided in an apparatus main body and inserted into the apparatus main body.
Storage means having a plurality of storage portions for storing the inserted first disk and a second disk smaller in diameter than the first disk; and a first or second disk taken out from the storage means. A reproducing unit having a turntable to be mounted thereon and reproducing the first or second disk taken out of the storage unit; and a position facing each of the plurality of storage units of the storage unit. The first or second disk is transported between the playback unit and the position where the first or second disk is mounted, and the first or second disk removed from the storage unit is transported.
Position the disc at a predetermined position, and
The first or second disc taken out from the playback unit
Immediately before being mounted, the first or
And a disk transport means having positioning means for releasing the positioning of the second disk . 2. The apparatus according to claim 1, wherein said positioning means includes a positioning portion for performing positioning by abutting on an outer peripheral edge of said first or second disk taken out of said storage means. The disc reproducing device according to the above. 3. The positioning means according to claim 1, wherein
The centers of the ejected first and second discs are almost the same
2. The disk reproducing apparatus according to claim 1 , wherein the positioning is performed . 4. The disk transport means further comprises:
Chain the first or second disk with the
A chucking plate for chucking is provided.
Determining means for transferring the first or second disk to the first or second disk
The center of the second disk is in the chucking plate
4. The disk reproducing apparatus according to claim 3 , wherein the positioning is performed so as to substantially coincide with the center . 5. The disk reproducing apparatus according to claim 1 , further comprising:
Each housing part facing the position of the upper Symbol housing means disk conveying means
And the first or second disk removed from the storage means.
To move the disc between the position where it is
The disk reproducing device according to claim 1, further comprising a moving mechanism .