JP3374595B2 - 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 in which disks are accommodated. Among them, a magneto-optical disk recording / reproducing apparatus capable of recording / reproducing any one of them, in particular, a magneto-optical disk recording / reproducing apparatus having an improved double insertion preventing mechanism for preventing double insertion of a disk or a disk cartridge. It is about.

[0002]

2. Description of the Related Art Conventionally, in a magneto-optical disc recording / reproducing apparatus (disc playing apparatus) for accommodating a plurality of discs or disc cartridges, as shown in FIG.
Is rotatably provided with a double insertion preventing member 82, and after the selected disc or disc cartridge is pulled out to the playing portion 83, the double insertion preventing member 82 closes the insertion opening 81, The double insertion into the empty insertion opening 81 is prevented. Further, as an erroneous insertion preventing mechanism of a magneto-optical disk recording / reproducing apparatus, Japanese Patent Laid-Open No. 61-202
There is one disclosed in Japanese Patent Laid-Open No. 60.

[0003]

However, as shown in FIG.
With the double insertion prevention mechanism shown in, when the number of stored sheets increases,
In proportion to this, the number of double-insertion preventing members 82 also increases, leading to an increase in the number of parts, which causes a problem of cost increase.

The present invention has been made in view of the above problems, and its purpose is to reduce the number of parts and the cost by using a single double insertion preventing member. It is an object of the present invention to provide a magneto-optical disk recording / reproducing device for reducing the above-mentioned problem.

[0005]

In order to achieve the above object, a magneto-optical disk recording / reproducing apparatus according to the present invention comprises:
A double-insertion preventing member provided on a stocker portion having a plurality of stages of disc cartridge storage portions and protruding and retracting an interference portion in front of an insertion opening of the disc cartridge storage portion; and a stocker portion provided on the stocker portion. And an actuating means for actuating the double insertion preventing member.

The stocker section is provided in the stocker section accommodating section of the apparatus main body so that the stocker section can be moved forward and backward, and the apparatus main body is provided with a cam pin, and the double insertion preventing member is provided inward at the front end of the member main body. In addition to providing a bending interference part,
A cam hole portion may be provided in the lower portion, the double insertion preventing member may be provided in the stocker portion so as to be swingable in the left-right direction, and a cam pin may be inserted into the cam hole portion.

[0007]

With this structure, the actuating means is actuated to
By actuating the double insertion preventing member for the sheet, the interference portion of the member can be projected and retracted in front of the insertion opening of the disc cartridge storage portion, and the interference portion is positioned in front of the insertion opening of the disc cartridge storage portion. By doing so, double insertion of the disc or the disc cartridge can be prevented. Moreover, since the double insertion preventing member is a single piece, the number of parts is small and the cost can be reduced.

Further, by moving the stocker portion forward, the cam pin provided in the main body of the apparatus guides the cam hole portion into which the cam pin is inserted, and the double insertion preventing member is centered around its fulcrum. Then, the interference portion is removed from the front side of the insertion opening of the disc cartridge housing portion by moving outward.

Further, by the rearward movement of the stocker portion, the cam pin guides the cam hole portion into which the cam pin is inserted, and the double insertion preventing member is moved inward about its fulcrum. As a result, the interference portion can be projected to the front side of the insertion opening of the disc cartridge housing portion to prevent double insertion of the disc or the disc cartridge. Moreover, since the double insertion preventing member is a single piece,
The number of parts is small, and the cost can be reduced.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 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 thereof omitted, FIG. 2 is a perspective view of a main chassis of the magneto-optical disk recording / reproducing apparatus with a part thereof omitted, and FIG. FIG. 4 is a perspective view of the magnetic disk recording / reproducing apparatus in which the stocker portion is omitted, and FIG. 4 is a perspective view of the driving pores in the magneto-optical disk recording / reproducing apparatus as viewed from the front side.

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

Disc recesses 305L and 305R for holding the disc cartridge are formed on the left and right front sides of the back surface of the disc cartridge case 301, and groove portions 306L and 306R along the front-rear direction are formed on the left and right end faces of the disc cartridge case 301. Is formed, and a shutter locking member (not shown) is provided in the middle of the right groove portion 306R.
Is biased to the R side by a spring (not shown),
It can be withdrawn.

The locking claw portion 307 of the slide shutter 304 is locked to this shutter locking member.
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 an escutcheon panel 2 and an escutcheon panel lid 2B are provided on the front surface of the main chassis 1. Yes, on the front of the escutcheon panel 2 (EJ / L
D) Button 2C is provided.

In the main chassis 1, the front half of the main chassis 1 is a stocker storage section a and the rear half is an elevator storage section b. The suspension chassis 3 is located at the bottom of the elevator storage section b. The mounting legs 3A at the four corners are fixed via the damper 4. A turntable 5 is arranged in the center of the suspension chassis 3, and an optical pickup (not shown) is arranged in the suspension chassis 3 beside the turntable 5. This optical pickup is moved in the radial direction of the disk 302 by a screw feeding mechanism (not shown). Also,
An elevator chassis 50 holding a disk cartridge holder 51 is provided in the elevator storage section B so that the elevator chassis 50 can be moved up and down by an elevating mechanism section 53.

As shown in FIG. 4, a horizontal drive mechanism S and a vertical drive mechanism H are arranged at the bottom of the stocker storage portion a of the main chassis 1, and the horizontal drive mechanism S is provided. Is composed of a stocker drive mechanism section which is a stocker drive means and a disk cartridge delivery drive mechanism section. The sub-chassis 20 is fixed to the bottom of the stocker storage section a so as to cover the horizontal drive mechanism S and the vertical drive mechanism H.

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 that is a stocker holding member, and a stocker 27 that is detachably held by the slide chassis 9.
Has a bottom surface portion 9a and left and right side surface portions 9b and 9c. The left side surface portion 9b has a spring locking portion 13B on its upper surface side and a bending surface portion 13 on its front surface side, and its rear portion is Has been released. 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 portions 15a and 17a are formed in the surface portion.
Claw guide holes 16 and 17 are formed at the upper edge and the lower edge of the opening 15 along the front-rear direction, 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 protruding from the bottom surface 9a thereof.
Is slidably inserted into the slide chassis guide hole portions 23 and 24 of the sub chassis 20 and is attached to the sub chassis 20 so as to be movable in the front-rear direction. Further, the slide chassis 9 has springs 13C and 13D suspended between spring engagement portions 13B and 17a formed on the left and right sides of the slide chassis 9 and spring engagement portions 20b and 20c formed on the sub chassis 20, respectively. Always biased forward.

As shown in FIGS. 6 to 8, the stocker 27 has a stocker body 30 and a stocker outer plate 31, and the stocker body 30 has upper, lower surface portions 30a, 3 and 3.
0b, and left and right surface portions 30c and 30d, and the front and rear surfaces are open.
Five shelves 32 are arranged in the interior of the disc at predetermined intervals in the vertical direction, and the disc cartridge storage portion 3 of 6 stages is provided.
3 is formed.

The bottom surface 31a of the stocker outer plate 31 is brought into contact with the lower surface of the stocker body 30, and the left and right surface portions 31b and 31c are connected to the stocker body 3.
0 contacting the left and right surface portions of 0, the left and right surface portions 31b, 3
The upper end of 1c is connected by a connecting plate 35 as shown in FIGS. 6 and 7, and is attached to the stocker main body 30.

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. In this case, the slide pin 31A provided on the surface portion of the stocker outer plate 31 is slidably engaged with the guide hole portion 10 of the slide chassis 9.

A double insertion preventing mechanism 40 is provided on the right side of the slide chassis 9. The double-insertion preventing mechanism 40 includes a double-insertion preventing lever 41, which is a double-insertion preventing member shown in FIG. 9, and the double-insertion preventing lever 41 includes a member main body 41a having a side surface rectangular frame shape. The upper and lower fulcrum holes 42 are provided at the rear end of the member main body 41a, the inwardly bent interference portion 43 is provided at the front end, the spring locking portion 47 is provided at the upper portion, and the cam hole is provided at the lower portion. Each part 44 is formed. A switch operating shaft 46 is provided below the interference portion 43.

The double insertion preventing lever 41 is
Upper and lower support shafts 42A (see FIGS. 6 and 7) inserted and fixed in the fulcrum hole portion 42 are supported by the slide chassis 9 and the slide chassis cover 18 and arranged on the right side of the slide chassis 9. In this case, the cam pin 45 provided on the sub chassis 20 is inserted into the cam hole portion 44 (see FIG. 10). The double insertion preventing lever 41 is constantly biased inward by a spring 49 stretched between a spring locking portion 47 provided on the upper portion thereof and a spring locking portion 48 provided on the slide chassis cover 18. (See FIGS. 6 and 7).

Next, the operation of the magneto-optical disk recording / reproducing apparatus having the above structure will be described.

To operate the magneto-optical disk recording / reproducing apparatus, open the escutcheon panel 2 and press the (EJ / LD) button 2
By pressing B, the eject operation of the stocker 27 is performed. In this case, as the slide chassis 9 moves forward, the cam pin 45 fixedly provided on the sub chassis 20 guides the cam hole portion 44 into which the cam pin 45 is inserted, as shown in FIG. The heavy insertion preventing lever 41 is outwardly (rightward) about the support shaft 42A.
And the interference portion 43 is removed from the front side of the insertion port 33A of the disc cartridge storage portion 33 of the stocker 27.

When the stocker 27 is ejected, the cartridge storage section 3 of the stocker 27 is ejected.
Then, the disk cartridge 300 is inserted into the disk 3. Then, by pressing the (EJ / LD) button 2B, the stocker loading operation starts.

As the slide chassis 9 is moved rearward by this stocker loading operation, the cam pin 45 fixedly provided on the sub-chassis 20 as shown in FIG. 12 has a cam hole portion 4 into which the cam pin 45 is inserted.
4 and guide the double insertion prevention lever 41 to the support shaft 42
By moving inward (leftward) around A, the interference portion 43 projects toward the front side of the insertion port 33A of the disk cartridge storage portion 33 of the stocker 27.

As described above, the double insertion preventing lever 41 is
13 is completely closed, the switch insertion shaft 76 provided on the double insertion prevention lever 71 turns off the erroneous insertion detection switch 240 as shown in FIG. 13, and the disk cartridge 300 is inserted into the disk cartridge storage portion 33. Detects the normal insertion.

Then, the stocker 27 stops at the standby performance position, and the stocker 2 of the disk cartridge 300 is
7, the presence or absence in the cartridge storage part 33 is detected,
The unit enters the performance standby state. Then, press the play button to select the performance disc, and then the elevator chassis 50
The cartridge holder 51 ascends and descends to stop at the disc selection position via the, the height of the elevator chassis 50 is positioned, the disc cartridge 300 is pulled into the cartridge holder 50, and the elevator chassis 50 descends. Then, the cartridge holder 51 is placed on the suspension chassis 3 and the performance of the disc is started.

[0031]

As described above, the magneto-optical disc recording / reproducing apparatus according to the first aspect is provided in the stocker portion having a plurality of stages of disc cartridge accommodating portions, and is provided in front of the insertion opening of the disc cartridge accommodating portion. Since the double insertion preventing member for retracting the interference portion is provided, and the operating means provided in the stocker portion for operating the double insertion preventing member, the operating means is operated. By actuating the double insertion preventing member for the sheet, the interference portion of the member can be projected and retracted in front of the insertion opening of the disc cartridge storage portion, and the interference portion is positioned in front of the insertion opening of the disc cartridge storage portion. By doing so, double insertion of the disc or the disc cartridge can be prevented. Moreover, since the double insertion preventing member is a single piece, the number of parts is small and the cost can be reduced.

A magneto-optical disk recording / reproducing apparatus according to a second aspect of the present invention is the magneto-optical disk recording / reproducing apparatus according to the first aspect, wherein the stocker section is provided in the stocker section accommodating section of the apparatus main body so that the stocker section can move forward and backward. A cam pin is provided on the main body, and the double insertion preventing member is configured by providing an interference portion that bends inward at the front end portion of the member main body of one piece and providing a cam hole portion at the lower portion. The cam pin provided on the main body of the apparatus is moved by the forward movement of the stocker portion by providing the prevention member swingably in the left-right direction in the stocker portion and inserting the cam pin in the cam hole portion. Of the double insertion preventing member is moved outwardly around the fulcrum so that the interference portion is located in front of the insertion opening of the disc cartridge accommodating portion. It is excluded.

Further, when the stocker portion is moved rearward, the cam pin guides the cam hole portion into which the cam pin is inserted, and the double insertion preventing member is moved inward (left side) about its fulcrum. Direction) and the interference portion projects toward the front side of the insertion opening of the cartridge housing portion, so that double insertion of the disc or the disc cartridge can be prevented. Moreover, since the double insertion preventing member is a single piece,
The number of parts is small, and the cost can be reduced.

[Brief description of drawings]

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

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

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

FIG. 4 is a perspective view of a drive unit 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.

FIG. 6 is a perspective view of the stocker portion viewed from the front side.

FIG. 7 is a perspective view seen from the rear surface side of the stocker unit.

FIG. 8 is a perspective view of the stocker unit in a disassembled state.

FIG. 9 is a perspective view of a double insertion preventing lever.

FIG. 10 is an operation explanatory diagram of the magneto-optical disk recording / reproducing apparatus at the time of normal insertion (at the time of eject).

FIG. 11 is a front view of the stocker unit at the time of normal insertion (at the time of eject).

FIG. 12 is an operation explanatory view of the same magneto-optical disk recording / reproducing apparatus at the time of normal insertion (at the time of standby).

FIG. 13 is a front view of the stocker unit at the time of normal insertion (standby).

FIG. 14A is a perspective view of an MD cartridge. (2) is a sectional view of the MD cartridge

FIG. 15 is a perspective view of a conventional magneto-optical disk recording / reproducing apparatus.

[Explanation of symbols]

Storage section Storage section 8 Stocker section 33 Disc cartridge storage 41 Double insertion prevention lever (double insertion prevention member) 41a member body 43 Interference part 44 Cam hole 45 cam pin

─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-6-96508 (JP, A) JP-A-8-102124 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G11B 17/22-17/30

Claims (2)

(57) [Claims] 1. A double-insertion preventing member for a single piece, which is provided in a stocker portion having a plurality of stages of disc cartridge accommodating portions, and which causes an interference portion to project and retract in front of an insertion opening of the disc cartridge accommodating portion, and the stocker portion. A magneto-optical disk recording / reproducing apparatus, comprising: an operating means that is provided in the operation unit and operates the double insertion preventing member. 2. A stocker portion accommodating portion of the apparatus main body is provided such that the stocker portion can be moved forward and backward, a cam pin is provided on the apparatus main body, and the double insertion preventing member is provided inward at the front end portion of the one-piece member main body. In addition to providing a bending interference portion and a cam hole portion in the lower part, the double insertion preventing member is provided on the stocker portion so as to be swingable in the left-right direction, and a cam pin is inserted into the cam hole portion. The magneto-optical disk recording / reproducing apparatus according to claim 1.