JP3166561B2 - Magneto-optical disk recording / reproducing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk-shaped recording medium (hereinafter referred to as a "disk") or a plurality of disk cartridges each containing a disk. The present invention relates to a magneto-optical disc recording / reproducing apparatus capable of recording / reproducing any one of them, and particularly to a magneto-optical disc recording apparatus having improved elevator operation means for controlling a speed when a disc cartridge is fixed to a disc player. It relates to a playback device.

[0002]

2. Description of the Related Art Conventionally, a magneto-optical disc recording / reproducing apparatus has a disc storage section for accommodating a plurality of discs in a stacked state and a disc player section for selectively pulling out a predetermined disc from these discs for recording or reproducing. The apparatus (disk playing apparatus) is known as disclosed in Japanese Patent Application Laid-Open No. 5-334788.

[0003]

However, in the above-described conventional magneto-optical disk recording / reproducing apparatus (disk playing apparatus), the elevator unit for fixing the pulled-out disk to the disk player unit has a speed of moving up and down. When the disc is not controlled and the disc is fixed to the disc player section, a mechanical collision sound is generated, and there is a problem that the disc is noisy.

The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a method in which a disc cartridge held by a cartridge holder is fixed to a disc player portion for recording and / or reproducing. It is an object of the present invention to provide a magneto-optical disk recording / reproducing apparatus which can eliminate mechanical collision sound generated in the optical disk.

[0005]

Means for Solving the Problems To achieve the above object,
First, the present inventionofThe number of magneto-optical disk recording / reproducing devices
Stocker for storing multiple disk cartridges
Section and the plurality of disc cartridges to be selected from.
Pull out the specified disk cartridge
Cartridge holder for holding the cartridge
Elevator for raising and lowering the cartridge holderChassis
And a disk car held by the cartridge holder.
Disk player for recording and / or reproducing cartridges
And the elevatorChassisWhen operating the vertical movement of
And the disk cartridgeToThe disc player section
Emplacedwhen doingToFrom high-speed movement areaSlow downAnd below
A cam groove is formed to reach the low-speed movement area for lowering
Vertical cam gearWhen,Holding the disc player section,
A suspension chassis to which a damper is fixed,
Elevator chassis and the suspension chassis
With the suspension link to connectIt is characterized by having
I do.

[0006] The descending speed of the elevator operating means may be controlled by a cam, or the descending speed of the elevator operating means may be controlled by a drive motor.

[0007]

According to the above construction, a predetermined disk cartridge is selectively pulled out from a stocker section for storing a plurality of disk cartridges in a stacked state, the disk cartridge is held by a cartridge holder, and the elevator is lowered by the elevator operating means. Thus, when the disk cartridge held by the cartridge holder is fixed to the disk player for recording and / or reproduction, the lowering speed of the elevator can be reduced to eliminate mechanical collision noise.

[0008]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a magneto-optical disk recording / reproducing apparatus according to the present invention with a part omitted, FIG. 2 is a perspective view of a main chassis of the magneto-optical disk recording / reproducing apparatus with a part omitted, and FIG. FIG. 4 is a perspective view of the magneto-optical disk recording and reproducing apparatus with the stocker section omitted, and FIG. 4 is a perspective view of the driving mechanism section of the magneto-optical disk recording and reproducing apparatus viewed from the front side.

A magneto-optical recording type mini-disc cartridge (hereinafter referred to as an MD cartridge) 300 used in a magneto-optical disc recording / reproducing apparatus according to the present invention is shown in FIG.
As shown in FIG. 7, an information recording disk 302 housed in a cartridge case 301 and a cartridge case 30
A disk access hole 303 provided on one side and a slide shutter 304 for opening and closing the disk access hole 303 are provided.

A cartridge holding recess 305L is provided on the front left and right sides of the back surface of the cartridge case 301.
305R are formed, and groove portions 306L, 306 along the front-rear direction are formed on the left and right end surfaces of the cartridge case 301.
An R is formed, and a shutter locking member (not shown) is provided in the middle of the right groove 306R, and this shutter locking member is urged toward the groove 306R by a spring (not shown). That can be withdrawn.

The locking claw 307 of the slide shutter 304 is locked to the shutter locking member.
Further, a shutter opening / closing hole 308 is provided on the right end surface of the slide shutter 304.

The magneto-optical disk recording / reproducing apparatus according to the present invention includes a main chassis 1 as shown in FIGS. 1 to 4, and the main chassis 1 includes upper and lower portions 1A, 1A,
B, left and right side portions 1C and 1D, and a rear surface portion 1E. The front surface is open, and the upper surface portion 1A is formed in a band shape, and the rear surface portion 1E is formed in a frame shape. . An escutcheon panel 2A and an escutcheon panel lid 2B are provided on the front face, and an eject loading (EJ /
(LD) button 2C is provided.

In the main chassis 1, the first half is provided in a stocker storage section A and the second half is provided in an elevator storage section B. A suspension chassis 3 is provided in a portion corresponding to the bottom of the elevator storage section B. Are fixed via dampers 4 at the mounting legs 3A at the four corners. The suspension chassis 3 is provided with a turntable 5 located at the center thereof, and the suspension chassis 3 is provided with an optical pickup 6 located at the side of the turntable 5. Optical pickup 6
Is driven by a screw feed mechanism (not shown).
(See FIG. 9).

A suspension link 167 is provided on the left and right sides of the suspension chassis 3 as shown in FIG. These suspension links 1
67, the upper straight portion 168 and the lower straight portion 169 are bent so as to form an inverted shape at a bending point 170, and a linear hole portion 171 from the upper straight portion 168 to the bending point 170 is formed.
Short holes 172 connected to the linear holes 171 are formed from the bending points 170 to the lower straight portions 169, respectively. These suspension links 167 are attached to the left and right sides of the suspension chassis 3 by fulcrum pins 173 at the lower ends thereof.
A torsion spring 174 is mounted on the fulcrum pin 173, and the suspension link 167 is urged by the torsion spring 174 to fall forward.

As shown in FIGS. 4 and 8, a horizontal drive mechanism S and a vertical drive mechanism H are arranged at the bottom of the stocker storage section A of the main chassis 1. The horizontal drive mechanism S
As shown in FIGS. 3 and 9, the sub-chassis 20 is fixed so as to cover the vertical drive mechanism H. The sub-chassis 20 has a left side surface portion 20a, and the surface portion of the sub-chassis 20 has a first stocker drive shaft guide hole portion 21, a second stocker drive shaft guide hole portion 22 and a front and rear portion from left to right. Positioned slide chassis guide holes 23 and 24 are provided. Further, a slit forming column 25 is vertically provided on the rear left portion of the sub-chassis 20, and the slit forming column 25 has a predetermined pitch in a vertical direction as shown in FIG. Five vertical positioning slits 26 are formed. Also, the left side surface portion 20a
The spring engaging portions 20b and 20c are formed on the right side surface.

Further, a stocker section 8 is housed in the stocker section housing section A of the main chassis 1. The stocker unit 8 includes a slide chassis 9 serving as a stocker holding member and the stocker 2 held by the slide chassis 9.
The slide chassis 9 has a bottom surface 9a and left and right side surfaces 9b, 9 as shown in FIGS.
The bottom surface 9a has a guide hole 10 located at the center and extending in the front-rear direction, and a vertical cam lever drive shaft insertion hole 11 and a horizontal cam lever drive shaft insertion hole 12 located at the left and right. Are provided. And the left side 9
b has a spring locking portion 13B on its upper surface side and a bent surface portion 13 on its front side, and its rear portion is open.
Further, the right side surface portion 9c has a bent surface portion 14 on the front side thereof, and the opening portion 15 and the spring locking portion 15
a, 17a are formed, and the claw guide holes 16 along the front-rear direction are formed on the upper edge of the right side surface 9c and the lower edge of the opening 15;
17 are formed respectively. A slide chassis cover 18 is attached to the upper surface of the slide chassis 9.

The slide chassis 9 has front and rear guide pins 28a, 28b projecting from a bottom surface 9a thereof.
Are slidably inserted into the slide chassis guide holes 23 and 24 of the sub-chassis 20, and are attached to the sub-chassis 20 so as to be movable in the front-rear direction. Further, the slide chassis 9 is provided with springs 13C, 13D bridged between spring engaging portions 13B, 17a formed on the left and right portions thereof and spring engaging portions 20b, 20c formed on the sub chassis 20. It is always biased forward (see FIG. 5).

The stocker 27 has a stocker main body 30 and a stocker outer plate 31, as shown in FIGS.
a, 30b and left and right side portions 30c, 30d, and has a housing configuration in which front and rear surfaces are opened. Inside the stocker main body 30, five shelf portions 32 are provided in predetermined directions in a vertical direction. 6 cartridge storage units 3 arranged at intervals
3 are formed. The entrance of the cartridge storage section 33 is retracted from the front surface 30e of the stocker body 30. A round hole 34 is formed in the center of the shelf 32, and a rattle spring mounting portion 35 is provided in the shelf 32 as shown in FIG. A rattle spring 44 is mounted on the rattle spring mounting portion 35 (see FIG. 25).

As shown in FIG. 17, left and right erroneous insertion preventing claw mounting portions 3 are provided at left and right end portions of the stocker body 30, respectively.
6, 37 are formed. Left wrong insertion prevention claw mounting part 36
Has a protruding portion 38 protruding rearward for each of the cartridge accommodating portions 33, and a slit 39 is formed on a side portion of the protruding portion 38. In addition, a positioning pin groove 40 that is a stocker-side positioning portion is formed on the upper surface of each protrusion 38.

The right erroneous insertion prevention claw mounting portion 37 has a slit 41 formed for each of the cartridge storage portions 33 in a thick portion 30A formed on the right end of the stocker body 30.
And an opening 42 formed on the right side of the stocker body 30 for each of the cartridge storage sections 33.
Each of the cartridge storage portions 3 is provided in the thick portion 30A.
A groove portion 43 for a positioning pin, which is a stocker-side positioning portion, is formed for every three.

As shown in FIG. 19, the stocker outer plate 31 has a structure in which left and right surfaces 31b and 31c are raised on a bottom surface 31a. A horizontal cam lever drive shaft hole 50 that is cut and has a bent portion 50a on the front side and a vertical cam lever drive shaft hole 51 that forms a right angle in plan view are formed. A plurality of (six) windows 52 are formed at predetermined intervals in the vertical direction in the right side portion 31c. In the second window 52 from the top and the second window from the bottom, a claw engaging portion 52a, which is another erroneous insertion prevention claw operating means, is provided.

The stocker outer plate 31 contacts the bottom surface 31a of the stocker outer plate 31 with the lower surface of the stocker body 30, and the left and right face portions 31b and 31c of the stocker body 3
0 abuts on the left and right sides, and these left and right sides 31b, 3b
The upper end of 1c is connected by a connecting plate 53 as shown in FIGS. 14 and 15, and is mounted on the stocker body 30.

As shown in FIG. 16, a left (one) erroneous insertion preventing claw mechanism 54 constituting erroneous insertion preventing means is mounted on the left erroneous insertion preventing claw mounting portion 36. That is, the left erroneous insertion prevention claw mechanism 54 includes six erroneous insertion prevention claws 5.
6 and these erroneous insertion preventing claws 56 are provided in FIG.
As shown in FIG. 5, a front end has a hole 57 serving as a pivot point, a left side has a spring locking portion 58 and a release interference portion 59, a rear right side has a claw portion 60, and a lower surface has a leaf spring 60A. ing. And these erroneous insertion preventing claws 56 are
7 is arranged on the erroneous insertion preventing claw mounting portion 36 by pivotally supporting the fulcrum shaft 61 inserted into the left side portion 31b of the stocker outer plate 31.
Is inserted into the slit 39. A photoflag 243 in which six flag pieces 244 are vertically arranged as shown in FIG. 6A and FIG. 29 is provided on the left portion of the sub-chassis 20. Are positioned outside the six erroneous insertion prevention claws 56 of the erroneous insertion prevention claw mechanism 54.

As shown in FIG. 16, a plurality of leaf springs 62 are attached to the left side 31b of the stocker outer plate 31 so as to be connected to the connecting plate 62A, and these leaf springs 62 are erroneously inserted. The leaf spring 62 urges the erroneous insertion prevention claw 56 so as to push the claw part 60 into the cartridge storage part 33.

As shown in FIG. 16, a plurality of cartridge-side pressure springs 63 are attached to the right side 31c of the stocker outer plate 31 so as to be connected to the connecting plate 63A. It is inserted into the cartridge storage section 33 through the opening 52 of the section 52 and the right erroneous insertion prevention claw mounting section 37.

The right (other) wrong insertion preventing claw mechanism 55 constituting the wrong insertion preventing means has a wrong insertion preventing claw main body 64 as shown in FIGS. 16 and 21. At the upper and lower edges of the main body 64, fulcrum portions 65A and 65
B is provided, and a plurality of (six) erroneous insertion preventing claws 65 are provided at predetermined intervals in the vertical direction at the rear end of the erroneous insertion preventing claw main body 64. At the front part, an upper and lower engaging portion 66 bent inward (left side) and an engaging portion 67 bent outward (right side) are provided.

The stocker body 30 incorporating the stocker outer plate 31 is incorporated in the slide chassis 9 so as to be movable in the front-rear direction, as shown in FIGS. In this case, a slide pin 31 </ b> A provided on the surface of the stocker outer plate 31 is slidably engaged with the guide hole 10 of the slide chassis 9. The right erroneous insertion prevention claw mechanism 55 is provided with fulcrum pins 67a and 67b provided on fulcrum portions 65A and 65B above and below the erroneous insertion prevention claw body 64.
Are slidably engaged with the claw guide holes 16 and 17 and are provided on the right erroneous insertion prevention claw mounting portion 37. The erroneous insertion prevention claw main body 64 is urged by a spring 68, The insertion prevention claw 65 is inserted into the slit 41 formed in the right wrong insertion prevention claw mounting portion 37. The spring 68 is extended between the spring engaging portion 67c of the engaging portion 67 of the erroneous insertion preventing claw main body 64 and the spring engaging portion 15a on the right side of the slide chassis 9.

A double insertion preventing mechanism 70 is provided on the right side of the slide chassis 9. The double insertion prevention mechanism 70 includes a double insertion prevention lever 71 shown in FIG. 22. The double insertion prevention lever 71 is formed in the shape of a square frame on the side, and a vertical fulcrum is provided at the rear end. Hole 72
Are formed at the front end, and the interference portion 73 is bent inward.
Are formed, and a cam hole 74 is formed in the lower part. A switch operating shaft 7 is provided below the interference portion 73.
6 are provided.

The double insertion prevention lever 71 is
Upper and lower support shafts 72A (see FIGS. 14 and 15) inserted and fixed in the fulcrum holes 72 are supported on the slide chassis 9 and the slide chassis cover 18, and are disposed on the right side of the slide chassis 9. In this case, the cam pin 75 provided on the sub-chassis 20 is
4 (see FIG. 31). The double insertion prevention lever 71 has a spring locking portion 77 provided on the upper portion thereof and a spring locking portion 78 provided on the slide chassis cover 18.
(See FIGS. 14 and 15).

As shown in FIG. 8, a horizontal drive mechanism S is provided at the bottom of the stocker storage section A in the main chassis 1.
And a vertical driving mechanism H including a stocker driving means. The horizontal driving mechanism S includes a stocker driving mechanism as a stocker driving unit and a cartridge transfer driving mechanism.

The stocker drive mechanism includes a horizontal drive motor 80 fixedly mounted on the sub-chassis 20 side. An output shaft 81 of the horizontal drive motor 80 is supported by a worm gear mechanism 82 and the bottom. It meshes with a horizontal cam gear 84 which is a cam member via an intermediate gear train 83. As shown in FIG. 23, the horizontal cam gear 84 has a stocker driving cam groove 85 formed on the upper surface thereof.
°) to the idling area from point B (120 °), to the moving area from point B (120 °) to point C (180 °), and from point C (180 °) to point D (300 °). It has an idling area C extending from point D (300 °) to a moving area D extending from point E (0 °), and an idling area E extending from point E (0 °) to point F (40 °). . Also, the horizontal cam gear 84
The intermittent engaging tooth portion 84A is formed in the range from about 270 ° to about 0 ° on the peripheral portion of.

As shown in FIG. 8, a horizontal cam lever 86 for driving a stocker is provided on the back side of the sub-chassis 20.
And a vertical cam lever 87 for driving the stocker. The horizontal cam lever 86 has a fulcrum 86A at its left end.
A guide pin 88 is provided at the tip of the horizontal cam lever of the slide chassis 9 through the second stocker drive shaft guide hole 22 provided in the sub-chassis 20. Drive shaft insertion hole 12
And horizontal cam lever drive shaft hole 5 of stocker outer plate 31
0 is inserted. A cam pin 89 is fixed to an intermediate portion of the horizontal cam lever 86, and the cam pin 89 is inserted into a stocker driving cam groove 85 of the horizontal cam gear 84 (see FIGS. 9 and 10).

The cartridge transfer drive mechanism includes:
As shown in FIG. 3, FIG. 4, and FIG. 8, the main chassis 1 has a holding plate 600 fixed inside the left side of the main chassis 1, and a rack gear holder 93 is provided on the holding plate 600. A guide pin (not shown) is slidably engaged with a guide hole 601 provided in the holding plate 600 so as to be movable in the front-rear direction. At the lower part of the rack gear holder 93, a lower rack gear 94 is provided horizontally and along the front-rear direction.
A horizontal rack gear 95 having many vertically long rack teeth in the front-rear direction is fixed to the rack gear holder 93.

A horizontal gear shaft 96 is rotatably provided at the bottom of the stocker storage section A in the main chassis 1 so as to be horizontally rotatable. Bevel gears 97 and 98 are provided at front and rear ends of the horizontal gear shaft 96. Are fixed, the front bevel gear 97 is connected to a bevel gear 99 which is pivotally supported at the bottom of the stocker unit storage section A, and the rear bevel gear 98 is connected to
Bevel gear 10 pivotally supported at the bottom of the stocker storage section b.
0, and the bevel gears 99, 10
0 has a spur gear portion (not shown), and the spur gear portion of the bevel gear 99 has an intermediate gear 10 intermittently rotated by the intermittent engagement tooth portion 86 of the horizontal cam gear 84.
1 is engaged. The spur gear portion of the bevel gear 100 meshes with the lower rack gear 94.

The vertical drive mechanism H has a vertical drive motor 102 fixedly mounted on the bottom side of the main chassis 1, and an output shaft 103 of the vertical drive motor 102.
Is a vertical cam gear 10 serving as a cam member via a worm gear mechanism 104 and an intermediate gear train 105 supported by the bottom.
6 is engaged.

As shown in FIG. 24, the vertical cam gear 106 has a stocker driving cam groove 107 on its upper surface 106a and an elevator driving cam groove 108 on its lower surface 106b. Then, the stocker driving cam groove 107 moves from the point A (340 °) to the point B (0 °).
°) and point C (9 °) from point B (0 °).
0 °) and a spinning region c from point C (90 °) to point D (50 °).

The elevator drive cam groove 10
8 is a spinning region d from point I (50 °) to H point (330 °), a low-speed moving region e from H point (330 °) to G point (300 °), and G point (300 ° ) To the point F (120 °) and the point F (120
°) to the point E (270 °).

The vertical cam lever 87 for driving the stocker disposed on the back side of the sub-chassis 20 has a fulcrum 87A at the right end and a guide pin 109 at the tip.
The guide pin 109 passes through the first stocker drive shaft guide hole 21 provided in the sub-chassis 20 and the vertical cam lever drive shaft insertion hole 11 of the slide chassis 9 and the vertical position of the stocker outer plate 31. It is inserted into the cam lever drive shaft hole 51. A cam pin 110 is fixed to an intermediate portion of the vertical cam lever 87, and the cam pin 110 is inserted into a stocker driving cam groove 107 of the vertical cam gear 106 (see FIGS. 8 to 10).

A guide hole (not shown) is formed along the front-rear direction below the left and right sides of the main chassis 1, and is formed on the lower side of the main chassis 1 as shown in FIG. As shown in FIG. 13 to FIG.
13 are provided movably in the front-rear direction, and rising portions 114, 1 are provided on the left and right edges of the vertical cam gear plate 113.
15 are formed, and these rising portions 114 and 11 are formed.
5 are provided with sliding pins 116 and 117, and the sliding pins 116 and 117 are slidably inserted into the guide holes. The vertical cam gear plate 113
Are provided with a cam shaft 118 and guide pins 119 and 120. The cam shaft 118 is inserted into the elevator driving cam groove 108 of the vertical cam gear 106, and the guide pins 119 and 120 are located on the lower surface of the main chassis 1. It is inserted into the guide holes 602 and 603 of the portion 1A.

The left side 1 of the main chassis 1
A left elevator lever 121 as shown in FIG. 11 is provided outside C, and a right elevator lever 122 is provided as fulcrums 133 and 134 outside the right surface portion as shown in FIG.
And the pin engagement portion 135 at the lower end of the left elevator lever 121 is
16 is rotatably engaged with the sliding pin 11 at the lower end of the right elevator lever 122.
7 is rotatably engaged. An engagement pin 137 is provided at the rear end of the left elevator lever 121,
The rear end of the right elevator lever 122 has an engagement pin 13
The engaging pins 137 and 138 are inserted into arcuate guide holes 139 and 140 provided on the left and right side surfaces 1C and 1D of the main chassis 1, respectively.

An elevator chassis 141 constituting a vertical transport section is provided in the elevator storage section B of the main chassis 1 as shown in FIG. The elevator chassis 141 has a U-shape in plan view, and guide holes 144 and 145 long in the front-rear direction are provided before and after the left and right portions 143L and 143R of the elevator chassis 141 as shown in FIG. And the left and right portions 14 of the elevator chassis 141.
As shown in FIG. 28, holder holding pin holes 146 and 147 are provided in the 3L and 143R, respectively, in a state of being separated from each other in the front and rear directions. These holder holding pin holes 146, 1
47 is located below the large-diameter hole 148a.
And a small-diameter hole 148b is formed.
Also, as shown in FIGS. 3 and 29, the right part 143L of the elevator chassis 141 is provided with first and second photo sensors 241 and 242, and the first photo sensor 2
Reference numeral 41 is close to the slit forming column 25, and the second photo sensor 242 is close to the photo flag 243.

The engaging pins 137 and 138 of the left and right elevator levers 121 and 122 are rotatably inserted into the guide holes 144 and 145 of the elevator chassis 141.
Guide pins 149, 150 are provided at the front ends of the left and right portions 143L, 143R of the main chassis 1 in the vertical direction provided on the left and right side portions 1C, 1D of the main chassis 1. Guide hole 142 along
L, 142R. Also, the main chassis 1
The projection 142A shown in FIGS.
Is provided.

The left and right sides 1 of the main chassis 1
As shown in FIGS. 11 and 12, levers 151 and 152 are provided inside the C and 1D with their middle portions serving as fulcrums, and the left lever 151 is provided at the middle portion thereof by a pin 154L and the left elevator lever 121 is provided. The guide pin 155L provided at the tip of the left lever 151 is inserted into the guide hole 144 of the elevator chassis 141. The lever 152 on the right is a pin 15
4R, which is coupled to the right elevator lever 122 by a guide pin 155 provided at the tip of the right lever 152.
R is the guide hole 145 of the elevator chassis 141
Has been inserted. Then, the left and right levers 151 and 15
2 is urged downward by springs 156L and 156R.

The elevator chassis 141 holds a cartridge holder 180. The cartridge holder 180 has a holder body 181 as shown in FIG.
The left and right sides of the holder main body 181 are bent into respective U-shaped cross sections to form holding grooves 182.
L, 182R, a rear end portion of the holder main body 181 is formed with a stopper surface portion 183 by bending, and a front end of the holder main body 181 is opened to form an entrance / exit portion 184. The left and right sides of the holder body 181 are provided with front and rear holder pins 185L, 185R.
However, a sliding pin 185A is provided at the intermediate portion.

As shown in FIGS. 5 and 13, a slide guide 186 is inserted and fixed in the left holding groove 182L, and a left slide groove 190L is formed. At the front end of the slide guide 186, a left positioning pin 187L, which is a holder-side positioning portion, is provided so as to protrude forward. In addition, a guide hole 18 extending in the front-rear direction is formed on the upper surface of the right holding groove 182R.
8 is formed at the left edge of the guide hole 188, and a wall 189 is formed downward.
89, together with the upper and lower surfaces of the right holding groove 182R, form a right slide groove 190R. The wall portion 189 is provided with a shutter engaging claw 191 and a shutter engaging portion releasing claw 192 as shown in FIGS. On the right side of the front surface of the holder body 181, a right positioning pin 187R, which is a holder-side positioning portion, is provided so as to protrude forward.

As shown in FIGS. 5 and 8, a guide rod 1 extending in the front-rear direction is provided in the right holding groove 182R.
A rear end of the guide rod 193 is swingably attached to the right side of the rear surface of the holder body 181, and a front end of the guide rod 193 is attached to a right nail release member 210 described later. . A slider 194 is provided on the guide rod 193 so as to be slidable. The slider 194 has a cartridge engaging projection 195 projecting from the left side thereof.

A rack engaging gear 199 and a horizontal swing gear 196 are provided on the upper surface of the holder body 181.
And the rotation of the rack engaging gear 199 is
The intermediate gear train 198 transmitting to the shaft 96
The horizontal swing gear 196 is rotatably mounted with an interference projection 202 on the periphery of the horizontal swing gear 196 and a slide pin 207 deflected to the interference projection 202 side. It is. Further, the rack engaging gear 199 can return and rotate by the urging force of the spring 203.

A swing arm 204 is arranged on the upper surface of the holder main body 181. The swing arm 204 has slide holes 205 and 206 formed at its base and intermediate portions, respectively. Hole 2
05, the support shaft 201 of the intermediate gear train 198 is slidably inserted, and the slide pin 207 of the horizontal swing gear 196 is slidably inserted into the slide hole 206 of the intermediate portion. The tip of the horizontal swing gear 196 is rotatably engaged with the pin 208 of the slider 194.

On the front side of the upper surface of the holder body 181, left and right nail release members 209 and 210 and a reversing lever 211 are provided. That is, the left claw release member 209 has an interference protrusion 212 projecting forward at the left end of the plate-shaped member main body 209A.
09A has slide holes 213 and 214 long in the left-right direction.
Are formed, and a spring engaging portion 215 is provided on the member main body 209A. And this left claw release member 2
09 is provided with guide pins 216 and 217 projecting from the upper surface of the holder main body 181 to slide holes 213 and 21 respectively.
4 is inserted and provided on the upper surface of the holder main body 181 so as to be movable in the left-right direction, and this constitutes one erroneous insertion preventing operation means.

The right claw release member 210 has an inclined edge 210a at the right end of its plate-shaped member main body 210A.
3 is held at the front end. Then, the member body 21
Slide holes 219 and 220 long in the left-right direction are formed in 0A, and spring locking portions 221 and 226 are provided in the member main body 210A.

The right claw release member 210 is provided with a guide pin 21 projecting from the upper surface of the holder body 181.
The slide holes 219 and 220 are inserted into the holders 6 and 217, and are provided on the upper surface of the holder body 181 so as to be movable in the left-right direction.

The reversing lever 211 has a fulcrum pin 222 having an intermediate portion projecting from the upper surface of the holder body 181.
The pressing portion 223 is formed at the front end of the reversing lever 211, and the interference portion 224 and the spring locking portion 225 are provided at the rear end of the reversing lever 211.

Then, the left and right nail release members 209, 21
0 between the spring engaging portions 215 and 221.
27, and the spring engagement portion 225 of the reversing lever 211 and the spring engagement portion 22 of the right claw release member 210.
6, and a spring 228 is stretched.

Next, the operation of the magneto-optical disk recording / reproducing apparatus configured as described above will be described. First, open the escutcheon panel 2 and use the eject loading (E
Press the (J / LD) button.

(Ejection (Discharge) Operation of Stocker) The worm gear mechanism 1
04, the vertical cam gear 106 rotates counterclockwise through the intermediate gear train 105 as shown by the arrow in FIG.
Due to the rotation of the vertical cam gear 106, the cam pin 110 inserted into the stocker driving cam groove 107 moves along the groove of the moving area b of the stocker driving cam groove 107, and the vertical cam lever 87 moves about its fulcrum 87a. To rotate forward.

In this case, the guide pin 109 of the vertical cam lever 87 contacts the horizontal groove 51A of the vertical cam lever driving hole 51 provided on the stocker outer plate 31, and the stocker 27 and the stocker 27 are moved by the MD cartridge 300 by the operator. To the eject position where the insertion / ejection operation can be performed. The slide chassis 9 is provided with a vertical cam lever 87.
The contact between the guide pin 109 of the slide chassis 9 and the horizontal portion 11A of the vertical cam lever driving hole 11 of the slide chassis 9 is disengaged.
B and 17a move forward to about 10 mm by the springs 13C and 13D and stop.

Further, as the stocker 27 moves to the eject position, the claw engaging portion 52a provided on the right side of the stocker outer plate 31 is moved to the right insertion prevention claw main body 64 of the right wrong insertion prevention claw mechanism 55. Engaging with the engaging portion 66, the erroneous insertion preventing claw main body 64 moves together with the stocker 27 to the front eject position. In this case, since the right side surface of the erroneous insertion prevention claw main body 64 abuts on the upper edge portion and the lower edge portion of the right side portion 9c of the slide chassis 9, it cannot rotate at the eject position.

In this case, the erroneous insertion preventing claw 60 of the left erroneous insertion preventing claw mechanism 54 of the stocker 27 is
0 is in contact with the left side surface portion 20a, and cannot rotate at the eject position.

(Release of Double Insertion Prevention Lever) As the slide chassis 9 moves forward, a cam pin 75 fixed to the sub-chassis 20 as shown in FIG.
Guides the cam hole 74 into which the cam pin 75 is inserted, and moves the double insertion prevention lever 71 outward (to the right) about the support shaft 72A so that the interference portion 73 is moved to the stocker. 27 is removed from the front side of the entrance of the cartridge storage section 33. In this case, the double insertion prevention lever 71
Switch operating shaft 76 provided in the
0 is turned on.

When the stocker 27 reaches the eject position, the vertical cam lever 87 turns on an eject detection switch (not shown) to turn on the vertical drive motor 10.
2 stops. When the stocker 27 is in the ejected state, the elevator holder 180 is located at the first sheet (uppermost stage).

(Insertion of MD Cartridge 300) The cartridge storage 33 of the stocker 27 shown in FIG.
5 to 26, the MD cartridge 300 is inserted. By the insertion of the MD cartridge 300, the claw portion 60 of the erroneous insertion prevention claw 56 of the left erroneous insertion prevention claw mechanism 54 is provided.
Is engaged with the groove 306L provided on the left side surface of the MD cartridge 300, the leaf spring 60A is engaged with the cartridge holding recess 305L of the MD cartridge 300, and the erroneous insertion prevention claw 65 of the right erroneous insertion prevention claw mechanism 55 is mounted on the MD cartridge 300. It engages with a groove 306R provided on the right side surface of the cartridge 300.

The cartridge storage section 33 has an MD.
By inserting the cartridge 300, the cartridge-side pressure spring 6 provided in the cartridge
3 comes into pressure contact with the right side surface of the MD cartridge 300.

(Stocker Loading Operation) Next, (E)
When the J / LD) button is pressed, the vertical drive motor 102
Rotates in the reverse direction, and the worm gear mechanism 104 and the intermediate gear train 10
5, the vertical cam gear 106 rotates clockwise. Due to the rotation of the vertical cam gear 106, the cam pin 110 inserted into the stocker driving cam groove 107 moves along the groove (shown in FIG. 24B) of the moving area b of the stocker driving cam groove 107, The cam lever 87 pivots rearward about its fulcrum 87a, and the guide pin 109 of the vertical cam lever 87 first moves the stocker 27 rearward. Thereafter, the horizontal portion 11A of the vertical cam lever drive shaft insertion hole 11 of the slide chassis 9 engages with the guide pin 109 of the vertical cam lever 87, and the stocker 27 and the slide chassis 9 are moved to the rear play standby position.

In this case, the erroneous insertion prevention claw body 64 on the right side of the stocker 27 is moved to the play standby position together with the stocker 27 by the spring 68 applied to the spring locking portion 67c of the erroneous insertion prevention claw body 64.

(Closing by Double Insertion Prevention Lever 71) The rearward movement of the slide chassis 9 causes the cam pins 75 fixed to the sub-chassis 20 as shown in FIGS. By guiding the inserted cam hole 74, the double insertion prevention lever 71 is
The supporter 72A moves inward (leftward) about the support shaft 72A, and the interference portion 73 is moved to the cartridge storage 3
3 protrudes forward of the entrance.

As described above, the double insertion preventing lever 71
33 is completely closed, the switch operation shaft 76 provided on the double insertion prevention lever 71 turns off the erroneous insertion detection switch 240 as shown in FIG. Detects insertion.

At this time, the stocker 2 of the vertical cam lever 87
The driving operation of the slide chassis 9 and the slide chassis 9 is completed, the vertical cam lever 87 turns on a standby position detection switch (not shown), and the stocker 27 stops at the performance standby position. At this time, the rotation of the vertical cam gear 106 is not stopped, and the operation for detecting the presence / absence of the MD cartridge 300 in each stage of the stocker storage section 33 to be described later is started.
In this case, the slide chassis 9 is in the standby position.
Is engaged with the cam hole 74 of the double insertion prevention lever 71, the double insertion prevention lever 71 cannot rotate.

When the double insertion prevention lever 71 is not completely closed, the stocker 27 turns on the standby detection switch at the performance standby position while the erroneous insertion detection switch is on. The vertical drive motor 102 rotates in the reverse direction, and the stocker 27 restarts from the eject operation.

(Performance Standby State to MD Cartridge Presence Detection Operation of Stocker Storage Unit) In this state, the stocker 27 is stopped at the standby performance position as shown in FIG. As shown in FIG. 11 to FIG. 13, the clockwise rotation of the vertical cam gear 106 causes the movement area f of the elevator driving cam groove 108 (FIG. 24).
(Shown in (4)), the vertical cam gear plate 113 moves forward via the cam shaft 118 inserted in the elevator driving cam groove 108, and the left and right elevator levers 121 and 122 are supported by the fulcrum 133. , 134, the rear engagement pins 137, 138 rotate so as to move downward, and the elevator chassis 141 starts lowering via the levers 151, 152.

In this case, the vertical cam lever 87 inserted into the stocker driving cam groove 107 of the vertical cam gear 106
Of the cam groove 110 for driving the stocker
No. 7 idle rotation area c (shown in FIG. 24 (2)). Therefore, the stocker 27 is stopped at the performance standby position even if the vertical cam gear 106 rotates for driving the elevator.

As shown in FIG. 29, first and second photosensors 241 and 242 are provided on a left portion 143L of the elevator chassis 141. The first photosensor 241 faces the vertical positioning slit 26. The second photo sensor 242 faces the photo flag 243. Therefore, the MD cartridge 30
0 is completely stored in the cartridge storage unit 33, the claw 60 of the left erroneous insertion prevention claw mechanism 54 engages with the groove 306L of the MD cartridge 300, and the photo flag 2
Forty-three flag pieces 244 have been raised.

In this state, the elevator chassis 14
34, the first photosensor 241 detects the vertical positioning slit 26 as shown in FIG. 34, and confirms the height position while the second photosensor 2
42 detects the rising flag piece 244 of the photo flag 243 and detects the presence or absence of the MD cartridge 300 in the cartridge storage section 33 of each stage of the stocker 27.

In this manner, the vertical drive motor 102 stops at the sixth (lowest) position of the elevator chassis 141 as it descends, and enters the performance standby state.

(Music Standby to Performance / Elevator M)
(D cartridge selection operation) When a play button is pressed (a play disk is selected), the vertical drive motor 102 rotates, and the elevator chassis 141 is raised by a reverse operation of the above-described lowering operation of the elevator chassis 141. The first photosensor 241 detects the vertical positioning slit 26, and the vertical drive motor 102 stops at a certain position (disk selection position) of the MD cartridge 300, and at the same time, the elevator chassis 141 stops.

(Elevator Height Positioning Operation) The horizontal drive motor 80 rotates, and the worm gear mechanism 82
The horizontal cam gear 84 rotates via the intermediate gear train 83.
Since the cam pin 89 of the horizontal cam lever 86 is inserted into the stocker driving cam groove 85 of the horizontal cam gear 84, the cam pin 89 is inserted into the stocker driving cam groove 85.
23 (2), and the horizontal cam lever 86 pivots rearward about its fulcrum 86A.

In this case, the guide pin 88 of the horizontal cam lever 86 is connected to the horizontal groove 12a of the horizontal cam lever drive shaft insertion hole 12 of the slide chassis 9 and the stocker outer plate 31.
Abuts on the bent portion 50a of the horizontal cam lever drive shaft hole 50, and moves the stocker 27 backward with the slide chassis 9 and the stocker outer plate 31.

By moving the stocker 27 backward,
The engaging claw 67 of the erroneous insertion prevention claw main body 64 of the right erroneous insertion prevention claw mechanism 55 interferes with the protrusion 142A provided inside the right side surface 1D of the main chassis 1 and the erroneous insertion prevention claw main body 6.
4 rotates so that the erroneous insertion prevention claw 65 at the rear thereof moves to the right outward, and these erroneous insertion prevention claws 65 are disengaged from the right end face groove 306R of the MD cartridge 300.

Further, the rearward movement of the stocker 27 causes the left and right positioning pins 1 at the front end of the cartridge holder 180 held by the elevator chassis 141.
87L and 187R are inserted into the left and right positioning pin grooves 40 and 43 of the stocker 27 to position the cartridge holder 180. Then, the cam pin 89 enters the movement area c of the stocker driving cam groove 85, and the stocker 27 stops moving.

(Operation of Retracting MD Cartridge 300 into Cartridge Holder 180)
Numeral 1 is in contact with the interference projection 202 of the horizontal swing gear 196, and the reversing lever 211 presses the right claw release member 210 rightward with its pressing portion 223 against the spring 228 as shown in FIG. , Right claw release member 2
Numeral 10 moves the guide rod 193 and the slider 194 outward in the right direction. At the same time, the slide pin 207 of the horizontal swing gear 196 presses the swing arm 204 to restrict the movement.

The rotation of the horizontal cam gear 84 causes the intermittently engaging teeth 84A to mesh with the intermediate gear 101 and rotate. At this time, since the cam pin 89 of the horizontal cam lever 86 is located in the idling area c of the stocker driving cam groove 85, the stocker 27 and the slide chassis 9 are stopped at the retracted position.

The intermittently engaging teeth 84 of the horizontal cam gear 84
The rotation of the intermediate gear 101 by A is performed by the bevel gears 99, 9
7 through which the horizontal gear shaft 96 is rotated. The rotation of the horizontal gear shaft 96 is transmitted to the lower rack gear 94 via the bevel gears 98 and 100, and moves the rack gear holder 93 forward. This rack gear holder 9
3 moves the horizontal rack gear 95 to the rack engaging gear 1.
The rack engaging gear 199 is rotated counterclockwise to rotate the horizontal swing gear 196.

For this reason, the horizontal swing gear 196
39, the reversing lever 211 is reversed by the urging force of the spring 228, and the pressing portion 223 of the reversing lever 211 is moved to the left claw releasing member 209 as shown in FIG. Press to the left. Therefore, the right claw release member 210 is pulled leftward by the spring 227, and the leading end of the guide lot 193 moves leftward, and this guide lot 1
The cartridge engaging projection 195 of the slider 194 slidably provided on the cartridge 93 engages with the cartridge holding concave portion 305R on the right side of the MD cartridge 300 to hold the MD cartridge 300.

Thereafter, the left claw release member 20 pressed leftward by the pressing portion 223 of the reversing lever 211 is sequentially turned on.
9 interferes with the release interference portion 59 of the left erroneous insertion prevention claw 56, rotates this erroneous insertion prevention claw 56, and moves the claw portion 60 of the erroneous insertion prevention claw 56 to the MD cartridge 3.
Remove from the left end surface groove portion 306L of 00.

Next, as the rack engaging gear 199 rotates counterclockwise, the slide pin 207 of the horizontal swing gear 196 rotates the swing arm 204 backward as shown in FIG. 194 moves rearward to draw the MD cartridge 300 into the cartridge holder 180.

As a result, the shutter locking portion releasing claw 192 enters the right side groove 306R of the MD cartridge 300 to release the locking of the shutter locking member to the slide shutter 304, and then the shutter locking claw is released. 191 engages with the shutter opening / closing hole 308 of the slide shutter 304. Then, when the MD cartridge 300 is pulled in, the slide shutter 304 is opened, and the disk access hole 303 is opened.

When the retraction of the MD cartridge 300 is completed by the rotation section of the intermittently engaging teeth 84A of the horizontal cam gear 84, the horizontal cam gear 8
41, the horizontal cam lever 86 pivots forward as shown in FIG. 41, and the stocker 27 and the slide chassis 9 are rotated.
Is returned to the standby position. To this end, left and right positioning pins 187 at the front end of the cartridge holder 180 are used.
L, 187R come out of the left and right positioning pin grooves 40, 43 of the stocker 27. In this state, the horizontal drive motor 80 stops.

(Mounting Operation of MD Cartridge 300 on Suspension Chassis 3)
When the vertical cam gear 106 rotates clockwise as described above due to the rotation of the cam, the vertical cam gear 106 is guided to the high-speed movement region f of the elevator driving cam groove 108, and the cam inserted into the elevator driving cam groove 108. Axis 118
, The vertical cam gear plate 113 moves forward, and the left and right elevator levers 121 and 122 move to the fulcrum 13.
3, 134, and the engagement pins 137, 13 at the rear end.
8 rotate downward so that the levers 151, 15
2 lowers the elevator chassis 141.

The sliding pins 185A provided on the left and right sides of the cartridge holder 180 held by the elevator chassis 141 are connected to the linear holes of the upper linear portion 168 of the suspension link 167 as shown in FIG. Part 1
The suspension link 167 is raised so that the upper straight portion 168 becomes vertical against the torsion spring 174. In this state, as the elevator chassis 141 descends, the sliding pin 185A slides downward in the linear hole 171.

At this time, the cam shaft 118 of the vertical cam gear plate 113 is moved from the high speed moving region f to the low speed moving region e of the elevator driving cam groove 108 of the vertical cam gear 106.
To enter, the elevator chassis 141 is lowered at a reduced speed, and the cartridge holder 180 is fixed on the suspension chassis 3.

Then, the cartridge holder 180 is
When the slide pin 185A is put on the suspension chassis 3 as shown in FIG. 8 (2), the suspension link 167 is inserted into the short hole 172 communicating with the linear hole 171 of the suspension link 167. The sliding pin 185A is inclined forward by the urging force of the torsion spring 174, and is pressed downward by the upper green portion 172a of the short hole portion 172.

For this purpose, the holder pins 185L and 185R of the cartridge holder 180 shift from the small-diameter holes 148b of the holder holding pin holes 146 and 147 of the elevator chassis 141 to the large-diameter holes 148a. The vertical drive motor 80 is stopped on the suspension chassis 3 while being disengaged from the elevator chassis 141. At this time
The information recording disk 302 of the D cartridge 300 is set on the turntable 5.

Then, the selected MD cartridge 30
0 starts playing. When the performance ends, an operation reverse to the above operation is started, and the MD cartridge 30
0 is returned to the cartridge storage section 33 of the stocker 27.

[0094]

As described in the foregoing, the magneto-optical disc recording and reproducing apparatus of the present invention is selectively drawn out predetermined disk cartridge from the stocker for accommodating a plurality of the disk cartridge in a stacked state this disc cartridge held by the cartridge holder, when placed in the disc Playa unit for recording and or reproducing the disc cartridge, descent is to slow down the speed movement region
With a cam groove to reach the low-speed movement area
By using the straight cam gear, it is possible to eliminate the occurrence of mechanical collision noise by slowing down the elevator.

By controlling the lowering speed of the elevator operating means by a cam or controlling the lowering speed of the elevator operating means by a speed control by a drive motor, the lowering speed of the elevator at the time of stationary operation can be reduced. It becomes easy to control the descending speed to be slowed down.

[Brief description of the drawings]

FIG. 1 is a partially omitted perspective view of a magneto-optical disk recording / reproducing apparatus according to the present invention.

FIG. 2 is a partially omitted perspective view of a main chassis of the magneto-optical disk recording / reproducing apparatus.

FIG. 3 is a perspective view of the magneto-optical disk recording / reproducing apparatus with a stocker portion omitted.

FIG. 4 is a perspective view of the drive mechanism in the magneto-optical disk recording / reproducing apparatus as viewed from the front side.

FIG. 5 is a plan view of the magneto-optical disk recording / reproducing apparatus with a part thereof omitted;

FIG. 6 (1) is a left side view of the magneto-optical disk recording / reproducing device partially omitted, and FIG. 6 (2) is a front view of the magneto-optical disk recording / reproducing device partially omitted.

FIG. 7 is a left side view of the magneto-optical disk recording / reproducing apparatus viewed from the outside in FIG. 4;

FIG. 8 is a plan view of the magneto-optical disk recording / reproducing apparatus with the stocker portion omitted.

FIG. 9 is a plan view of the magneto-optical disk recording / reproducing apparatus with the stocker section and the elevator section omitted.

FIG. 10 is a plan view of a stocker section of the magneto-optical disk recording / reproducing apparatus.

FIG. 11 is a left side view of the magneto-optical disk recording / reproducing apparatus with a part thereof omitted.

FIG. 12 is a right side view of the magneto-optical disk recording / reproducing apparatus with a part thereof omitted;

FIG. 13 is a plan view of the magneto-optical disk recording / reproducing apparatus with the stocker portion omitted.

FIG. 14 is a perspective view of the stocker unit of the magneto-optical disk recording / reproducing apparatus viewed from the front side.

FIG. 15 is a perspective view of the stocker seen from the rear side.

FIG. 16 is an exploded perspective view of the stocker unit.

FIG. 17 is a perspective view of the stocker section viewed from the rear side of the stocker.

FIG. 18 is a perspective view of a slide chassis.

FIG. 19 is a perspective view of a stocker outer plate.

FIG. 20 is a perspective view of an erroneous insertion preventing claw.

FIG. 21 is a perspective view of an erroneous insertion prevention claw main body.

FIG. 22 is a perspective view of a double insertion prevention lever.

23 (1) is a side view of a horizontal cam gear, (2) is a top view of a horizontal cam gear, (3) is a bottom view of a horizontal cam gear, and (4) is a cam diagram.

24 (1) is a side view of a vertical cam gear. (2) is a top view of a vertical cam gear. (3) is a cam diagram. (4) is a bottom view of a vertical cam gear. (5) is a cam diagram.

FIG. 25 is a plan view showing a state where the MD cartridge is inserted into a stocker.

FIG. 26 is a front view of the stocker in which the MD cartridge is stored.

FIG. 27 is a side view for explaining a relationship among a suspension link, a suspension chassis, and a cartridge holder in the magneto-optical disk recording / reproducing apparatus according to the present invention.

FIGS. 28 (1) and (2) are explanatory views for explaining in detail the relationship among a suspension link, a suspension chassis and a cartridge holder in a magneto-optical disk recording / reproducing apparatus.

FIG. 29 is an explanatory diagram of first and second photo sensors.

FIG. 30 is an operation explanatory diagram at the time of ejection in the magneto-optical disk recording / reproducing apparatus according to the present invention.

FIG. 31 is an operation explanatory diagram of the magneto-optical disk recording / reproducing apparatus at the time of normal insertion (at the time of ejection).

FIG. 32 is a front view of the stocker unit at the time of normal insertion (at the time of ejection).

FIG. 33 is an explanatory view of the operation of the double insertion prevention lever at the time of normal insertion (at the time of ejection).

FIG. 34 is an explanatory diagram of the operation of the first and second photo sensors.

FIG. 35 is an operation explanatory diagram of the magneto-optical disk recording / reproducing apparatus at the time of normal insertion (at the time of standby);

FIG. 36 is a front view of the stocker unit at the time of normal insertion (at the time of standby).

FIG. 37 is a plan view of the magneto-optical disk recording / reproducing apparatus according to the present invention at the time of standby.

FIG. 38 is an explanatory diagram of the operation when the stocker moves in the pull-in operation in the magneto-optical disk recording / reproducing apparatus.

FIG. 39 is an explanatory diagram of the operation when the left wrong insertion prevention claw is released in the pull-in operation in the magneto-optical disk recording / reproducing apparatus.

FIG. 40 is a view for explaining the operation when the MD cartridge is pulled in the pull-in operation in the magneto-optical disk recording and reproducing apparatus.

FIG. 41 is a view for explaining the operation when the stocker moves (standby position) in the pull-in operation in the magneto-optical disk recording / reproducing apparatus.

FIG. 42 is a perspective view of an MD cartridge. FIG.

[Explanation of symbols]

 A Stocker section storage section 8 Stocker section 106 Vertical cam gear 108 Elevator driving cam groove section 141 Elevator chassis (elevator) 180 Cartridge holder 300 Disk cartridge

Continuation of the front page (72) Eiichi Okawa 4-3-1 Tsunashima Higashi, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Inside Matsushita Communication Industrial Co., Ltd. (72) Takashi Suzuki 4-3-1 Tsunashima Higashi, Kohoku-ku, Yokohama, Kanagawa Prefecture No. 1 Matsushita Communication Industrial Co., Ltd. (58) Field surveyed (Int. Cl. ⁷ , DB name) G11B 17/22-17/30

Claims (2)

(57) [Claims] A stocker unit for storing a plurality of disk cartridges in a stacked state; a cartridge holder for selectively pulling out a predetermined disk cartridge from the plurality of disk cartridges and holding the disk cartridge; An elevator chassis for raising and lowering the cartridge holder, a disk player unit for recording and / or reproducing the disk cartridge held by the cartridge holder, and an operation for raising and lowering the elevator chassis , and fixing the disk cartridge to the disk player unit To move from the high-speed movement area to the low-speed movement area to slow down and move down
A vertical cam gear having a groove formed therein, and the disk player;
Suspension system to which the damper is fixed
Chassis, the elevator chassis and the suspension
And a suspension link for connecting to a chassis . 2. The magneto-optical disk recording / reproducing apparatus according to claim 1, wherein the lowering speed control of the vertical cam gear is performed by speed control by a drive motor.