JPS63291286A - Automatic changer for disk - Google Patents

Abstract

PURPOSE:To prevent sound jump under easily vibrating circumstance by supporting an optical pickup part or the like in a case through two kinds of dampers. CONSTITUTION:A substrate provided with a turntable 88 and the optical pickup part is supported on a chassis 1 for an automatic changer through a 1st damper 39 and the chassis 1 for the automatic changer is supported in the case through a second damper 85. Then the resonance frequencies of the first damper 39 and the 2nd damper 85 are made different from each other. In this way, influence by external vibration is eliminated by movably supporting the chassis 1 incorporating the automatic changer mechanism and a player mechanism in the case 200 and movably supporting the turntable 88 and the optical pickup of the player part, etc., for the chassis 1. Thus the vibration propagating to the optical pickup part is sufficiently attenuated and the sound jump is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an autochanger device for discs such as compact discs (CDs), and particularly to an autochanger device for discs used in automobiles and the like that are susceptible to vibrations.

2. Description of the Related Art A conventional in-vehicle CD autochanger has a structure in which a chassis in which an autochanger mechanism and a player mechanism are incorporated is supported within a case via a damper.
By using the above damper, the vibration of the car can be reduced.
This was intended to prevent "sound skipping" caused by transmission to the optical pickup section of the player mechanism.

Problems to be Solved by the Invention However, with the conventional device described above, even if the resonant frequency of the damper is lower than 100 Hz, it is not possible to sufficiently attenuate vibrations that are most easily transmitted in automobiles (approximately 100 Hz), and the tracking servo , focus servo (2), vibrations of about 100 Hz were transmitted to the optical pickup section, etc., causing "sound skipping".

The present invention eliminates the above-mentioned conventional problems, and provides a disc autochanger device that can sufficiently attenuate vibrations of about 100H2 and prevent the occurrence of "sound skipping."

Means for Solving the Problems In order to achieve the above object, the present invention supports a substrate provided with a turntable and an optical pickup section on an autochanger bench via a first damper,
Furthermore, the autochanger chassis is supported within a case via a second damper, and the resonance frequency of the first damper and the resonance frequency of the second damper are made different.

Function The present invention has the above-mentioned configuration, and since the optical pickup section and the like are supported within the case via two types of dampers, vibrations transmitted to the optical pickup section can be sufficiently attenuated. "Sound skipping" can be prevented.

Embodiment FIGS. 1 and 2 show a top and side view of an embodiment of the present invention. In FIGS. 1 and 2, 200 is a box-shaped case with an open top, and 1 is a box-shaped chassis, in which an autochanger mechanism and a player mechanism, which will be described later, are incorporated.

Reference numeral 39 denotes a rubber damper having the shape shown in FIGS. 3A and 3H, and this damper 39 is attached to a hole in the side plate of the chassis 1. A screw 201 is screwed into a screw hole of the case 200, and the tip of the screw 201 is inserted into the center hole 39A of the damper 39. A spring 202 has one end locked to the shear 1 and the other end locked to the inner wall of the case 200. The chassis 1 is movably supported in the case 200 by a damper 39 and a spring 202. 21A is a plate provided on a lifting platform that moves up and down, and on this plate 21A,
A disk magazine is locked, and the magazine also moves up and down as the lifting platform moves up and down. Reference numeral 84 denotes a board that supports an optical pickup section comprising a turntable 88, a lens 90, etc. of the player section, and this board 84 is movably supported by an oil-filled damper 85 and a spring 86 on the chassis 50 of the player.

In this way, in this embodiment, the autochanger mechanism,
By movably supporting the chassis 1 in which the player mechanism is incorporated in the case 200, and movably supporting the turntable 88 of the player section, the optical pickup section, etc. relative to the chassis 1, the influence of external vibrations can be reduced. It is designed to be removed.

Next, the autochanger mechanism incorporated into the chassis 1 will be explained in detail with reference to FIGS. 4 and 5.

In FIGS. 4 and 5, IA and IB are L-shaped chassis, and by screwing the ends of the chassis IA and 113, a box-shaped chassis 1 is constructed. 2
is a board mounted inside the chassis 1, and a motor 3 is fixed to this board 2. 4 is motor 3
5 is a large gear rotatably supported at the center of the substrate 2; 6A, 6B, and 6C are gears rotatably supported on the substrate 2;
A.

6B and 6C are always meshed with the large gear 5. A gear 7 is rotatably supported on a shaft 8 fixed to the substrate 2, and the gear 7 has a worm gear portion 7A that meshes with the worm gear 4 and a gear portion 7B that meshes with the gear 6A. has been done. When the motor 3 rotates, its rotational force is transmitted to the large gear 5 via the worm gear 4, gear 7, and gear 6A, and further transmitted to the gears 6B and 6C.

Reference numeral 9 denotes a gear-like rotating body, and this rotating body 9 is rotatably supported by a shaft 10 fixed to the substrate 2. A gear portion 9A that meshes with the large gear 5 is integrally formed at the lower part of the gear-shaped rotating body 9. Reference numeral 11 denotes a photocoupler fixed to the substrate 2, and the gear-shaped rotating body 9 is interposed between the light emitting element and the light receiving element constituting the photocoupler 11. When the large gear 5 is rotationally driven by the motor 3, the rotating body 9 also rotates, and a pulse is generated from the photocoupler 11. 12 is a position detection microswitch fixed to the board 2, 13A, 13B, 13C
is a bearing supported in the hole of the substrate 2. 14A,
14B and 14C have small gears 15A and 15B at one end.
, 15C is a fixed screw rod, and this screw rod 1
The lower ends of 4A to 14C are the bearings 13A to 13C, respectively.
Supported by 16A.

16B, 16C are leaf springs 17A, 17B,
Chassis IA through 17C, protrusion 18A of IB
, 18B, and 18C, and the upper ends of the threaded rods 14A to 14C are the bearings 16A to 18C.
Supported by 16C. In this way, the threaded rod 14A~
14C is chassis IA.

Bearings 16A-1 supported by protrusions 18A-18C of IB
6C and the substrate 2 (rotatably supported by two supported bearings 13A to 13C. Small gears 15A to 15C of each threaded rod 14A to 14C mesh with the gears 6A to 6C.

19A and 19B are guide rods, and this guide rod 1
9A.

One end of 19B is inserted into a hole in substrate 2, and the other end is inserted into and supported in holes in projecting pieces 20A and 20B of chassis IA.

Reference numeral 21 denotes an elevating table, and a plate 21 is provided on the upper surface of the elevating table 21.
A is fixed. Also, this elevating platform 21 has oak) 2
2A to 22C are supported. 23A-23C are leaf springs that urge the above-mentioned nuts 22A-22C upward. The nuts 22A to 22C are the threaded rods 14A to 14.
It is screwed into C. 24A and 24B are lifting platforms 21
This is a guide hole formed in the guide hole 24A,
The guide rods 19A and 19B are inserted into 24B.

When the large gear 5 is rotationally driven by the motor 3, the gear 6A
~6C rotates, and as a result of the rotation of small gears 15A~15C that mesh with these gears 6A~6C, threaded rods 14A~14C
also rotates, and the lifting platform 21 moves upward or downward (sixth
figure). As shown in FIGS. 7A and 7B, 25A and 25B are lock pieces rotatably supported on the lifting platform 21 by bins 26A and 26B, and 27A and 27B are lock pieces 2.
5A and 25B, and this spring 27A
, 27B, and the lock piece 25A.

25B locks the magazine M placed on the lifting table 21 (FIG. 7A). 28A and 28B are chassis I
It is a cam piece integrally formed with A and IB, and when the lifting platform 21 moves upward, the lock piece 25A,
Since one end of 25B contacts the cam pieces 28A and 28B, the lock pieces 25A and 25B rotate against the urging force of the springs 27A and 27B, and the magazine M on the lifting table 21 is unlocked (the first Figure 7B). 29 is chassis I
This is a microswitch attached to A, and this microswitch 'f-29 is driven by the lifting table 21 when the lifting table 21 moves to the top. 30 is a lever rotatably supported on one side of the lifting platform 21;
This lever 30 is integrally formed with a lifting platform 211: a contact portion 30A that comes into contact with the magazine when the magazine is placed thereon. 31 is a microswitch fixed to the lifting platform 21, and this microswitch 31 is driven by the contact portion 30A of the lever 30. 32 is a lever rotatably supported by the chassis IA; 33 is a spring whose one end is locked to one end of the lever 32 and the other end is locked to a locking piece of the chassis IA; 34 is integrally attached to the chassis IA; The lever 32, which is a formed stopper and is biased by a spring 33, is restricted from rotating by the stopper 34.

A sliding plate 35 is slidably supported on the inner surface of the chassis IB, and a spring 36 has one end locked to the sliding plate 35 and the other end locked to the engaging part of the chassis IB. The sliding plate 35 is biased by the spring 36 in the direction of the arrow X in FIG. A driving piece 37 is attached to one end of the sliding plate 35, and the rotating arm of the magazine is driven by this driving piece 37. A frame 38 is fixed to the upper part of the chassis IA, IB, and a magazine is inserted through the magazine insertion opening 38A formed by the frame 38. 39 is a rubber damper attached to the outer surface of chassis IA and IB, and case 200 covers the outer surface of chassis IA and IB.
The screw 201 screwed into the center hole 3 of the damper 39
It is inserted into 9A, and chassis IA, 1B etc. are case 200.
movably supported within.

In FIG. 5, 40 is a player, and this player 40 is screwed into the chassis 1.

41 is a roller support plate screwed to the chassis of the player 40; 4υ, 42B is a bent portion formed by bending a part of the roller support plate 41;
42B l2 has bearings 43A and 43B attached and folds. A shaft 44 is rotatably supported by the bearings 43A and 43B, and a gear 44A is fixed to one end of the shaft 44. 45 is the shaft 44
A roller 46 is rotatably supported by a bending portion 42A.
, 42B is a shaft inserted into long holes 47A, 47B, and this shaft 46 is a driven roller 48A.
, 48B are rotatably supported. 48C is a spring supported by the shaft 46, and the elastic force of this spring 48C causes the driven rollers 48A, 4
8B is biased toward the bent portions 42A and 42B. The diameter of the driven rollers 48A, 48B on the center side is smaller than the diameter on the bent portions 42A, 42B side. 46
A.

46B has one end locked to the bent portions 42A and 42B,
The other end is a spring that is locked to the shaft 46 (by the elastic force of the springs 46A, 46B, the shaft 46 is urged upward, and the driven rollers 48A, 48
B is pressed by the roller 45. A gear 49 is rotatably supported by the bent portion 42B, and this gear 49 meshes with the gear 44A.

Next, the player 40 will be explained. Figures 8 to 11
In the figure, 50 is a chassis of the player, 51 is a motor board, and a motor 52 is attached to this motor board 51. 53 is a worm gear fixed to the rotating shaft of the motor 52; 54 is a gear rotatably supported on the motor board 51; this gear 54 is connected to the worm gear 5;
Worm gear part 54A and bevel gear part 54B meshing with 3
It consists of A gear 55 is rotatably supported by the motor board 51, and the gear 55 includes a bevel gear part 55A and a gear part 55B that mesh with the bevel gear part 54B. The motor board 51 is screwed to the steering wheel 50. A gear 56 is rotatably supported on a shaft embedded in the side surface of the chassis 50, and this gear 56 is composed of a gear part 56A that meshes with the gear part 55B of the gear 55 and another gear part 56B. Ru. 57 is a gear part 57
It is a gear composed of A and 57B, and the gear part 57A
meshes with the gear portion 56A of the gear 56. 58 is a pin drive plate rotatably supported by a shaft 59 that supports the gear 57, and this pin drive plate 58 has a recess 58A,
58B is formed. Reference numeral 60 denotes a leaf spring, and the bottle driving plate 58 is pressed against the end surface of the gear 57 via a washer 61 by the elastic force of the leaf spring 6o.

The rotational force of the motor 52 is applied to the worm gear 53 and the gear 5.
4, transmitted to gear 57 via gear 55 and gear 56,
This gear 57 and the bin drive plate 58 rotate.

This is a rotating plate rotatably supported by a shaft 62B installed in the side plate of the 62 hash palm 50, and this rotating plate 62 includes:
A gear portion 62A1 that meshes with the gear portion 57B of the gear 57
Recessed portion 58A of the pin drive plate 58.

Pins 62B, 620 entering 58B and cam hole 62D
The saletail is formed. 63 is a roller support plate, and pins 63A are provided on the left and right sides of this roller support plate 63.

63B is inserted into a hole in the side plate of the shear 50, and the roller support plate 63 is rotatably supported by the chassis 50. 63
C and 63D are bent plates formed integrally with the roller support plate 63; C, the shaft 64 is supported by these bent plates 63C and 63D. 65A and 65B are the above shafts 6
The driven rollers 65A and 65E3 are rotatably supported by the bending plates 63C and 63D, and the diameters of the driven rollers 65A and 65E3 are larger than the diameters of the central portions. 66
is a spring supported by the shaft 64, and the elastic force of this spring 66 causes the driven rollers 55A,
65B is biased toward the bending plates 63C and 63D.

67A and 67B are disk insertion prevention members screwed to the roller support plate 63, 68A and 68B are drive pins provided on the bending plates 63C and 63D, and the drive pin 68B is inserted through the hole in the side plate of the chassis 50. and is inserted into the cam hole 62D of the rotating plate 62. 69A is a reversing spring whose one end is locked to the shaft 62B and the other end is locked to the tip of the driving pin 68B, and 69B is a reversing spring whose one end is locked to the side plate of the Sharn 50 and the other end is locked to the driving pin 68A. It is a reversing spring.

70A and 70B are sliders that are slidably supported on the inner surface of the side plate of the steering wheel 50 (the sliders 70A and 70B have the drive pins 68A and 6
Slanted cam holes 71A and 71B into which the cams 8B are inserted are formed. 72 is a pin implanted in the slider 70B, and this pin 72 passes through a long hole 73 formed in the side plate of the chassis 50 and protrudes outward.

Reference numeral 74 denotes an arm rotatably supported by the side plate of the arm 50, and the pin 72 is inserted into a long hole 74A formed in this arm 74. Reference numeral 75 is an arm rotatably supported on the side plate of the steering wheel 50;
A pin 76 implanted in the slider 70A is inserted into a long hole 75A formed in the slider 70A. 77 is chassis 50
plunger solenoid screwed to the side plate of the
77A is a movable piece of the plunger, and this movable piece 77
A pin 77B is implanted at the tip of A. 77C is a spring that biases the movable piece 77A. A slider 78 is slidably supported on the side plate of the steering wheel 50, and the movable piece 77A is inserted into the recess 78A of the slider 78.
pin 77B is engaged. 79A and 79B are bearings fixed to the side plates of the chassis 50;
9A and 79B I shafts 80 are rotatably supported. 81 is a roller, and this roller 81 is rotatably supported by the shaft 80. 80A is a gear attached to one end of the shaft 80, and this gear 80A meshes with the gear portion 57A of the gear 57. 5
0A is a bent plate portion formed by bending a part of the bottom plate portion of the shear 50, and this bent plate portion 50A is parallel to the side plate of the shear 50.

82 is a slider slidably supported by the bending plate portion 50A; 83 is a connecting arm rotatably supported by the bottom plate portion of the chassis 50; holes 83A, 83B +- formed in this connecting arm 83; 1. The pin 82A of the slider 82 and the pin 70C of the slider 70B are inserted. A locking portion for locking a substrate 84, which will be described later, is formed at the tip of the sliders 70A and 70B82.

Reference numeral 84 denotes a base plate movably supported by the chassis 50 by an oil-filled damper 85, and 86 a spring whose one end is latched to the chassis 50 and the other end is latched to the base plate 84. 87 is a player unit fixed to the substrate 84, and this player unit 87 includes a turntable 88, a motor 89 that rotates the turntable 88, and a lens 90 that focuses light emitted from a laser diode onto a disk. A motor 91 for moving the lens 9o in the radial direction of the disk, a detector for detecting light reflected by the disk, and the like are provided.

Reference numeral 92 denotes a clamp support plate rotatably supported by the base plate 84, and the clamp support plate 92 includes a clamp plate 9.
3 is rotatably supported. Reference numerals 92B and 92C are stopper pins embedded in the clamp support plate 92, and the disk transferred into the player 40 comes into contact with these stopper pins 92B and 92C, and the transfer is stopped. The hole edge of the center hole of the disk is connected to the turntable 8.
8 and the clamp plate 93 mentioned above. A cover plate 94 covers the upper opening of the chassis 50, and the cover plate 94 is screwed to the chassis 50.

95 is a disc insertion prevention member attached to the cover plate 94;
96 is a printed circuit board attached to the cover plate 94, and this printed circuit board 96 has two light receiving elements 96A and 9.
6B is provided. 97 is a printed circuit board screwed to the chassis 50, and this printed circuit board 97 has two light emitting elements 97A.

97B and microswitch 97C are attached. Light receiving elements 96A and 96B of the printed circuit board 96
and light emitting elements 97A and 97B of the printed circuit board 97.
The two pairs of photocouplers detect insertion or ejection of a disc into the player.

As shown in FIG. 11, a gear support plate 98 is screwed to the cover plate 94, and a gear support plate 98 rotatably supports a gear 99 that meshes with the gear 49. A gear 100 is rotatably supported by a gear support plate 98, and this gear 100 is composed of a gear part 100A and a gear part 100B that mesh with the gear part 56A of the gear 99 and the gear 56. 101 is an intermittent gear rotatably supported by the gear support plate 98, and this intermittent gear 101 can mesh with the gear portion 100B of the gear 100.

As shown in FIG. 12, stopper pieces 101B and 10IC are provided on one side of the intermittent gear 101, and a shaft 101A is integrally formed on the other side. The above shaft 101
A is a long hole 35A of the sliding plate 35 of the autochanger.
The roller 35B is inserted into the center hole of the roller 35B, which is rotatably supported by the roller 35B. 102 is an L-shaped arm rotatably supported by the gear support plate 98, and a pin 77B of the plunger 77 is inserted into a hole 102A formed at one end of the arm 102. 102B is a pin implanted at the other end of the arm 102, and this pin 102B is connected to the intermittent gear 10.
It is possible to engage with a stopper piece 101B provided on one side of 1. A spring 103 has one end locked to the gear support plate 98 and the other end locked to the arm 102.

Reference numeral 104 denotes an arm rotatably supported on the same axis as the arm 102. A pin 104A that can be engaged with the recess 35C of the sliding plate 35 is implanted at the tip of the arm 104. A spring 105 has one end locked to the arm 102 and the other end locked to the arm 104. When the arm 102 is driven by the plunger 77, the arm 102 is rotated.
The arm 104 is also driven by the bent piece 102C of 02, and the arm 104 rotates in the same direction as the arm 102.

The above autochanger and player are central processing unit C
It is controlled by a controller consisting of a PU, random access memory, read only memory ROM, etc.

13 to 16 show the magazine.

In FIGS. 13 to 16, 150 is a casing whose bottom and front surfaces are open, and 151 is a bottom plate that closes the opening on the bottom of the casing 150. This bottom plate 151 is attached to the casing 150 with screws. Installed. 152 is a plurality of partition plates stacked on the front opening of the housing 150;
The disk enters and exits from between 52 and 52. 153 is a rotating lever, and a plurality of rotating levers 153 are rotatably supported by the housing 150. When the rotary lever 153 is rotated, the disk housed in the housing 150 is pushed and the disk is ejected from the front opening of the housing 150. 15
A lock plate 4 is integrally formed at the lower end of a groove 155 formed on both sides of the housing 150.
is locked by lock pieces 25A and 25B of the autochanger.

FIG. 15 shows the magazine with the bottom plate 151 removed. FIG. 15 (2) Reference numerals 156, 157, and 158 are arc-shaped protrusions formed inside the housing 150, and these protrusions 156 to 158 have a plurality of circles into which the outer circumferential portion of the disk 159 is inserted. Arc-shaped grooves 156A and 157A
.

158A are formed in parallel. 160 is the housing 150
The plurality of rotating levers 153 are rotatably supported on this shaft 160. 1
Reference numeral 52 denotes the partition plate, and recesses 162A and 162B are formed on both sides of the partition plate 152.

163A and 163B are spacer parts integrally formed on both sides of the partition plate 152, and one spacer part 16
3A1m is an L-shaped engaging part 164, and a groove part 165 inserted into a protrusion 150A integrally formed on the inner wall of the housing 150.
is formed, and the other spacer portion 163B has a bearing portion 16
6 and a protrusion 167 are formed. 168 is partition plate 1
This ridge 168 is higher on the spacer portions 163A and 163B side, and is higher on the spacer portions 163A and 163B side.
52 is slightly sloped so that the center side is lower,
Only the outer peripheral portion of the disk 159 contacts the protrusion 168 . 1
Reference numeral 70 denotes a leaf spring, and one side of this leaf spring 170 (split spring pieces 171 are integrally formed).The tip of the spring piece 171 is bent into an L-shape. .

172 is a bearing portion formed on the leaf spring 170. 17
3 is a regulation plate, and this regulation plate 173 includes a partition plate 15.
A hole 174 into which the second protrusion 167 is inserted is formed. 175 is a shaft, and this shaft 175 is connected to each partition plate 152.
and the bearing portion 166 of the leaf spring 170, and both ends of the shaft 175 are inserted into holes formed in the housing 150 and the bottom plate 151, respectively. 176 is the housing 15
This is a leaf spring that is screwed to the inner surface of the side plate of the leaf spring 176. A divided spring piece 177 is integrally formed on one side of this leaf spring 176, and a divided spring piece 178 is integrally formed on the other side. is formed. Note that the tip of the spring piece 177 is bent into an L-shape. Spring piece 178 of the leaf spring 176
The tip of the partition plate 152 is inserted into the locking portion 164 of the partition plate 152.

- The other side of the partition plate 152 whose side is supported by the shaft 175 is pulled by the elastic force of the spring piece 178 of the leaf spring 176.

When the rotary lever 153 is rotated in the state shown in FIG. 15, the rear part of the disk 159 is pushed by the rotary lever 153 and pushed out from between the partition plates 152, as shown in FIG. In this case, the leaf springs 170, 176
The spring pieces 171 and 177 restore after being pressed by the disk 159, and due to this restoring force, the disk 169
Push forward. Also, when the disc 159 is stored in the magazine after the performance, the spring pieces 171 and 177 are pressed by the disc 159 and then restore, and this restoring force urges the disc 159 to store it.

Next, the operation of the above embodiment will be explained. Before inserting the magazine into the autochanger, the lifting platform 21 is located at the top. When the lifting table 21 is located at the top, one end of the lever 30 rotatably supported by the lifting table 21 is connected to the lever 32 supported by the chassis IA.
Since it is in contact with the contact portion 30A of the other end of the lever 30
is located above the lifting platform 21. In this state, when the magazine is inserted through the frame 38 and pressed downward against the elastic force of the spring 33, the abutting portion 30A of the lever 3o is pushed by the magazine, and the lever 30 is rotated. When the lever 30 rotates and the contact portion 30A moves to almost the same level as the lifting platform 21, the contact portion 30A turns on the microswitch 31 (tl in FIG. 17). When micro switch P31 is turned on, motor 3 rotates,
The rotational driving force of the motor 3 is transmitted to the large gear 5 via the worm gear 4, the gear 7, and the gear 6A, and the large gear 5 rotates.
Gears 5B and 5C meshing with this large gear 5 also rotate.

Therefore, the small gears 15A, 15B, and 15C fixed to the threaded rods 14A, 14B, and 14C are connected to the gear 6.
Since they are rotated by A, 6B, and 6C, the threaded rods 14A to 14C also rotate. When the threaded rods 14A to 14C rotate, the nuts that are screwed onto the threaded rods 14A to 14C)
The lifting platform 21 on which 22A to 22C are provided is the guide rod 19
A and 19B will guide you down. When the lifting platform 21 begins to descend, the microswitch 29 provided on the chassis IA is turned off (t2 in FIG. 17). Lifting platform 21
On the way down, the cam piece 28A of the lock pieces 25A and 25B.

The forced drive by 28B is eliminated, and the lock piece 25A.

25B is biased by springs 27A and 27B to rotate and engage with the lock plate 154 of the magazine, so that the magazine is locked to the lifting table 21. When the elevator platform 21 reaches the bottom, the microswitch 12 provided on the board 2 switches the elevator platform 2
1, the microswitch 12 turns on,
The power supply to the motor 3 is cut off and the rotation of the motor 3 is stopped (ta in FIG. 17).

After a predetermined period of time has passed after the power supply to the motor 3 is cut off, a current in the opposite direction starts to be supplied to the motor 3, the motor 3 rotates in the reverse direction, and the lifting platform 21 starts to rise (14 in Fig. 17).
. When the photocoupler 11 outputs a predetermined number of pulses after the motor 3 starts rotating in the reverse direction, the supply of reverse current to the motor 3 is stopped, and the lifting platform 21 stops rising (ts in FIG. 17). ). The stopping position of this elevating table 21 becomes the reference position (the position from which the uppermost disk stored in the magazine is taken out).

After a predetermined period of time has elapsed after the motor 3 stops rotating (ts in FIG. 17), the solenoid 77 of the plunger is energized (ta in FIG. 17). Plunger solenoid 771: When the movable piece 77A is energized and sucked, the arm 102 connected to the movable piece 77A by the pin 77B rotates, and the arm 104 also rotates by the bent piece 102C of the arm 102. do.

When the arm 102 rotates as described above, this arm 1
The pin 102B at the tip of 02 and the stopper piece 101B provided on the intermittent gear 101 are disengaged from each other. Further, when the arm 104 rotates as described above, the engagement between the bin 104A of the arm 104 and the recess 35C of the sliding plate 35 is released.

Bin 104A of arm 104 and recess 35C of sliding plate 35
When the engagement force is released, the sliding plate 35 slides slightly due to the biasing force of the spring 36. Therefore, the intermittent gear 101 engaged with the long hole 35A of the sliding plate 35 via the shaft 101A and the roller 35B rotates slightly, and the intermittent gear 101
meshes with the gear portion 100B of the gear 100. After a predetermined period of time has passed after the plunger 77 is energized, the motor 5
2, the motor 52 begins to rotate in a predetermined direction (H in FIG. 17).

When the motor 52 rotates, the rotational driving force of the motor 52 is transmitted to the worm gear 53, the gear 54, the gear 55, and the gear 5.
6. It is transmitted to the intermittent gear 101 via the gear 100, and the intermittent gear 101 rotates. When the intermittent gear 101 rotates, the sliding plate 3 engages with the shaft 101A of the intermittent gear 101.
5 slides, and a drive piece 37 attached to this sliding plate 35
presses one of the rotating levers 153 of the magazine, causing this rotating lever 153 to rotate. When the rotating lever 153 rotates, the disk 159 stored in the magazine is pushed by the rotating lever 153, and the disk 159 is pushed out.

Further, the rotational driving force of the motor 52 is transmitted to the gear 80A via the gear 57, and the gear 100, the gear 99,
Since it is transmitted to the gear 44A via the gear 49, the roller 81, the driven rollers 65A, 65B, and the roller 4
5. The driven rollers 48A and 48B rotate.

Therefore, the disk 159 pushed out from the magazine first passes through the rotating roller 45, the driven roller 48A,
48B and 1 = are pinched and transferred, and further pinched and transferred by the rotating roller 81 and driven rollers 65A and 65B. During the transfer of the disk 169, the light emitted from the light emitting element 97A toward the light receiving element 96A is blocked by the disk 159 being transferred (t in FIG. 17).
S), and furthermore, the light emitted from the light emitting element 97B toward the light receiving element 96B is blocked by the transferred disk 159 (tc+ in FIG. 17). When the disk 159 is further transferred, the light is no longer blocked by the disk 159 between the light emitting element 97A and the light receiving element 96A (tl
o) It is detected that the disk 157 has been moved to a predetermined position. Note that when the intermittent gear 101 rotates by a predetermined angle, the stopper piece 101C formed on the intermittent gear 101
contacts the pin 102B of the arm 102, and the intermittent gear 10
1 is prevented from rotating. After a predetermined time from tlo, power to the plunger solenoid 77 is cut off (17th
111) in the figure. When the power to the solenoid 77 is cut off, the slider 78 moves in the direction of the arrow X. Therefore, the rotating plate 6 which was pulled by the protruding piece 78B of the slider 78 and was prohibited from meshing with the gear portion 57B of the gear 57
The second gear part 62A is the gear part 5 of the rotating gear 57.
7B, and the rotating plate 62 rotates. At this time, the pin drive plate 58 also rotates.

As described above (=, when the rotating plate 62 rotates due to the rotational driving force of the motor 52, the driving pin 68B of the roller support plate 63 inserted into the hole of this rotating plate 62 is pushed downward by the rotating plate 62. Therefore, the roller support plate 63 is
A, rotates around 63B as a fulcrum. Roller support plate 6
3 rotates, the driven rollers 65A and 65B supported by this roller support plate 63 also move downward. Therefore, the disk 159 moves downward, and the center hole of the disk 159 fits into the protrusion of the turntable 88. Further, when the roller support plate 63 rotates, the micro switch 97C is turned on by the roller support plate 63 (tlt in FIG. 17).
63B are inserted into the inclined cam holes 71A and 71B of the sliders 70A and 70B, respectively.
When the drive pins 68A, 68B of the roller support plate 63 move downward, the sliders 7QA, 70B are driven by the drive pins 68A, 68B and slide in the direction of the arrow X. Further, the slider 82 connected to the slider 70B via a connecting arm 83 slides in the direction of arrow X. Slider 7OA, 70B and slider 82
When these sliders 70A slide in the directions of the arrows y and X, respectively.

The substrate 84, whose position was restricted by being clamped by the tip clamping portions 70B and 82, is movably supported by the oil-filled damper 85. Further, the arm 74 is connected to the slider 70B via a pin 72 implanted in the slider 70B.
B, when the slider 70B slides in the direction of the arrow X, the arm 72 rotates clockwise. The arm 74 is for regulating the rotation of the clamp support plate 92. When the arm 74 rotates clockwise as described above, the clamp support plate 92 is biased by the spring 92A and rotates, and the turntable is rotated. The clamp plate 93 presses the protrusion of the turntable 88 (the hole edge of the central hole of the fitted disk 159).
and a clamp plate 93.

In this way, the rotating plate 62 is rotated by the rotational driving force of the motor 52.
When the turntable 88 rotates, the driven rollers 65A and 65B move downward, so that the disk 159 moves downward and fits into the protrusion of the turntable 88, and the clamp plate 93 moves downward to close this clamp. The disk 169 is held between the plate 93 and the turntable 88, and the substrate 84 is made movable. Also, micro switch f97C
When the switch is turned ON and a predetermined period of time has elapsed, the supply of current to the motor 52 is cut off and the rotation of the motor 52 is stopped (t12 in FIG. 17).

The loading of the disc 169 is thus completed, and the disc 169 is then played back. Reproduction of the disc 169 is performed by rotating the disc 169 by rotating the turntable 88 with the motor 89, and detecting the light emitted from the lens 90 and reflected by the disc 169 via the lens 9o.

Next, the operation of ejecting the disc 159 will be explained.

When the reproduction of the disc 159 is completed or a disc eject is instructed during reproduction (113 in FIG. 17),
After a predetermined time, the motor 52 rotates in the opposite direction (t14 in FIG. 17). When the motor 52 rotates in the reverse direction, the gear 57 rotates, and the pin drive plate 58 rotates together with the gear 57.
The pin 62C of the rotating plate 62 is driven to rotate the rotating plate 62, and the gear portion 62A of the rotating plate 62 is rotated to the gear portion 57 of the gear 57.
Engage with B.

Therefore, the rotating plate 62 rotates. When the rotating plate 62 rotates, the driving pin 68B is driven upward by the rotating plate 62. Therefore, the roller support plate 63 rotates, the driven rollers 65A and 65B move upward, and the disk 15
9 is lifted upward, and the disc 159 is held between the rotating roller 81 and the disc 159. Further, when the drive pin 68B is driven upward, the slider 70A.

The slider 70B and the slider 82 slide in the directions of the arrows X and M to regulate the position of the substrate 84, and the arm 72 rotates counterclockwise to rotate the clamp support plate 92 upward.

The disk 159 lifted upward by the driven rollers 55A and 65B is transferred in the direction of the arrow by the roller 81, which is rotated by the rotational driving force of the motor 52. Furthermore, the disk 159 is connected to the roller 45 and the driven roller 4, which are rotated by the rotational driving force of the motor 52.
It is held between 8A and 48B and transferred in the direction of the magazine. During this transfer, the light receiving element 96A is blocked from light by the disk 159 (t16 in FIG. 17), the light receiving element 96B is completely blocked from light (t17 in FIG. 17), and the light receiving element 96A is further blocked from light (t17 in FIG. 17). txs).

When a predetermined period of time has elapsed after the end of light shielding of the light receiving element 96A is detected, the power to the motor 52 is cut off and the motor 5 is turned off.
2 stops rotating (t19 in FIG. 17). The disk 159 is stored in the magazine C until the motor 52 stops rotating.

Here, when the playback of another disc is instructed, the motor 3
rotates, the lifting table 21 moves upward, and the magazine moves upward. When the motor 3 rotates, the rotating body 9 also rotates, and a pulse is output from the photocoupler 11. When a predetermined number of pulses output from the photocoupler 11 are counted, the rotation of the motor 3 is stopped and the operations from 16 onward in FIG. 17 are performed.

When the disc has finished playing, press the magazine eject switch
(not shown) is operated (120 in FIG. 17), the motor 3 is energized and rotates.

Therefore, the lifting platform 21 rises. While the lifting platform 21 is rising, one end of the lock pieces 25A, 25B comes into contact with cam pieces formed on the chassis IA, IB, and the lock pieces 25A, 25B resist the urging force of the springs 27A, 27B. It is rotated to unlock the magazine.

When the elevating table 21 further rises, one end of the lever 30 supported by the elevating table 21 comes into contact with the lever 32 supported by the chassis IA. Therefore, the lever 30 is
1 rise (rotate accordingly, and the abutment part 30A of the lever 30
moves above the surface of the lifting platform 21. Therefore, a part of the magazine placed on the lifting table 21 is lifted by the contact portion 30A, and the magazine can be easily taken out from the magazine insertion port 38A. Note that the contact portion 30 of the lever 30
When the magazine is lifted by A, the microswitch 31 is turned off (121 in FIG. 17). When the lifting platform 21 rises to the top, the microswitch 29 is turned on and the lower part 3 stops (t22 in Fig. 17).
.

FIGS. 18(A) and 18(B) show the vibration transmission characteristics of the above embodiment. In FIG. 18(A), j indicates the vibration transmission characteristic from the case 200 to the chassis 1,
Vibration at a frequency that matches the resonant frequency fob of the damper 39 that movably supports the chassis 1 within the case 200 is easily transmitted to the chassis 1, and the vibration frequency is equal to the resonant frequency f.
When it becomes higher than ob, the vibration transmission rate from case 200 to chassis 1 decreases.

In FIG. 18(A), m is a board 84 that supports the turntable 88 and the like from the chassis 50 of the player 40.
It shows the vibration transmission characteristics to the chassis 50 and the board 8.
4 is easily transmitted to the substrate 84, and when the vibration frequency becomes higher than the resonance frequency foa, the vibration transmission rate from the chassis 50 to the substrate 84 is descend. In the above embodiment, the chassis 1 is movably supported within the case 200 via the damper 39, and the board 84 is movably supported via the oil-filled damper 85 on the chassis 50 of the player fixed to the chassis 1. Therefore, the vibration transmission characteristics from the case 200 to the board 84 are as shown in FIG.
) is a composite of the characteristics l and m (FIG. 18B), which can greatly attenuate vibration transmission at frequencies higher than the vicinity of the resonance frequency foa.

In general, in a car, photographing at a frequency of about 100 Hz is easily transmitted, and if vibrations at a frequency of about 100 Hz are transmitted to a vehicle-mounted CD autochanger, "sound skipping" is likely to occur despite tracking servo and focus servo. Furthermore, compact disc CDs tend to resonate around 100 Hz. On the other hand, in this embodiment, since it has a double damper structure, vibrations around 100 Hz can be greatly damped, and "sound skipping" etc. can be prevented. Note that in order to increase the amount of vibration damping around 100 Hz, it is preferable to use the first. Both resonance frequencies of the second dampers need to be 5QHz or less.

Effects of the Invention Since the present invention has a double damper structure as described above, it will not cause "sound skipping" even when used in an environment that is prone to vibration such as a car.
It has the advantage of preventing

[Brief explanation of drawings]

FIG. 1 is a top view of a disc autochanger device according to an embodiment of the present invention, FIG. 2 is a side view showing a part of the device in cross section, and FIGS. 3A and B are views of a damper used in the device. 4 is a side view of essential parts of the same device, FIG. 5 is an exploded perspective view of the same, FIG. 6 is a top view of a part of the same device, and FIG. 7A. B is a front view of the magazine lock mechanism of the device, FIGS. 8 and 9 are side views of the player of the disc autochanger, FIG. 10 is an exploded perspective view of the player, and FIG. 11 is a part of the player. 12 is a side view of the intermittent gear section of the player, FIG. 13 is a perspective view of the magazine used in the disc autochanger device, FIG. 14 is an exploded perspective view of the main parts of the magazine, and FIG. Figure 16 is a top view of the same magazine with the bottom plate removed, Figure 17 is an explanatory diagram of the operation of the disk autochanger device, and Figure 18 is a top view of the same magazine with the bottom plate removed.
Figures A and B are diagrams showing the vibration transmission characteristics of the device. IA, IB... Chassis, 2... Board, 3... Motor, 4... Worm gear, 5... Large gear, 6A
, 6B, 6C...gear, 7...gear, 7A・
... Form gear part, 7B... Gear part, 8... Shaft, 9... Rotating body, 10... Shaft, 11... Photocoupler, 12... Micro switch, 13 people. 13B, 13C...Bearing, 14A, 14B
, 14C...Threaded rod, 15A, 15B, 1
5C... Small gear, 16A, 16B, 16C.
... Bearing, 17A, 17B, 17C... Leaf spring, 18A, 18B. 18C... Projection piece, 19A, 19B... Guide rod, 2
0A, 20B... Projection piece, 21... Lifting platform, 21
A... Board, 22A, 22B. 22C...Natsuto, 23A, 23B, 23C
...Plate spring, 24A. 24B... Guide hole, 25A, 25B... Lock piece, 26A. 26B...Bin, 27A, 27B...Spring, 2
8A, 28B...Cam piece, 29...Micro switch, 30...Lever, 30A...Contact part, 31
... Micro switch, 32 ... Lever, 33.
... Spring, 34 ... ° stopper, 35 ... Sliding plate, 35A ... Long hole, 35B ... Roller, 35C
... recess, 36 ... spring, 37 ... drive piece, 38
...Frame, 38A...Magazine insertion slot, 39...
Damper, 40...Player, 41...Roller support plate, 42A, 42B...Bending portion, 43A, 43B
...bearing, 44...shaft, 44A...gear,
45... Roller, 46... Shaft, 46A, 4
6B... Spring, 47A, 47B... Long hole, 48
A, 48B...driven roller, 48C゛=spring,
49... Gear, 50... Chassis, 50A... Bending plate part, 51... Motor board, 52... Motor, 5
3... Worm gear, 54... Gear, 54A...
Worm gear part, 54B... Bevel gear part, 55...
Gear, 55A...Bevel gear part, 55B... Gear part,
56...Gear, 56A, 56B...Gear portion, 5
7... Gear, 57A, 57. B...Gear part, 5
8... Bin drive plate, 58A, 58B... Recessed part,
59... Shaft, 60... Leaf spring, 61... Washer, 62... Rotating plate, 62A... Gear part, 62B
, 62C... bottle, 62D... cam hole, 62g.
...Shaft, 63...Roller support plate, 53A, 63B
... Bin, 63C, 63D ... Bending plate, 64 ...
・Shaft, 65A, 65B...Followed roller, 6
6... Spring, 67A, 67B... Disk insertion prevention member, 53A, 68B... Drive bin, 69
A, 69B... Reversing spring, 70A, 70B.
...Slider, 70C...Bin, 71A, 71B.
...Cam hole, 72...Bin, 73...Long hole, 74.
...Arm, 75A...Long hole, 76...Bin, 77
... Solenoid, 77A... Movable piece, 77B...
Bottle, 77C... Spring, 78... Slider, 78A... Recess, 79A, 79B... Bearing, 80
...Shaft, 80A...Gear, 81...Roller, 82...Slider, 82A...Bin, 83...
・Connection arm, 83A, 83B...hole, 84...
- Substrate, 85... Oil-filled damper, 86... Spring, 87... Player unit, 88... Turntable, 89... Motor, 90... Lens, 91...
...Motor, 92...Clamp support plate, 93...Clamp plate, 94...Lid plate, 95...Disk insertion prevention member, 96...Printed circuit board, 96A. 96B... Light receiving element, 97... Printed circuit board, 97
A, 97B...Light emitting element, 97C...Micro switch, 98...Gear, 100...Gear, 100A
, 100B...Gear portion, 101...Intermittent gear, l
0IA...shaft, l0IB, l0IC...stopper piece, 102...arm, 102A...hole, 10
2B...Bin, 103...Sfring, 104...
・Arm, 104A... Bin, 105... Spring, 150... Housing, 151... Bottom plate, 152.
... Partition plate, 153 ... Rotating lever, 154 ... Lock plate, 155 ... Groove, 156 , 157 , 158
・ Projection, 156A. 157A, 158A...Groove, 159...Disc, 160...Shaft, 162A, 162B...Concave portion, 153A, 163B...Spacer portion, 164
...Locking part, 165...Groove part, 166...Bearing part, 167...Protrusion, 168...Protrusion, 170...
Leaf spring, 171... Spring piece, 172... Bearing part, 1
73... Regulation plate, 174... Hole, 175... Shaft,
176...Plate spring, 177...Spring piece, 178...
・Spring piece, 200...Case, 201...Screw, 2
02...Spring. Name of agent: Patent attorney Toshio Nakao (1st person)
Figure 2! Figure 3 (A>(B>4) Figure 4 Foil Figure 6 Chopsticks Figure 7 ζ Castle of Power Castle Figure 11 Figure 13

Claims (2)

[Claims] (1) A board provided with a turntable and an optical pickup unit is supported in an autochanger chassis via a first damper, and the autochanger chassis is supported in a case via a second damper, and the autochanger chassis is supported in a case via a second damper. A disc autochanger device in which the resonant frequency of the first damper and the resonant frequency of the second damper are different. (2) The disk autochanger device according to claim 1, wherein the resonance frequency of the first and second dampers is lower than 50 Hz, and the amount of vibration damping is increased near 100 Hz.