WO1994020959A1 - Disk recording and/or reproduction apparatus - Google Patents
Disk recording and/or reproduction apparatus Download PDFInfo
- Publication number
- WO1994020959A1 WO1994020959A1 PCT/JP1994/000355 JP9400355W WO9420959A1 WO 1994020959 A1 WO1994020959 A1 WO 1994020959A1 JP 9400355 W JP9400355 W JP 9400355W WO 9420959 A1 WO9420959 A1 WO 9420959A1
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- WO
- WIPO (PCT)
- Prior art keywords
- tray
- disk
- disc
- storage
- turntable
- Prior art date
Links
- 238000003860 storage Methods 0.000 claims description 140
- 238000001514 detection method Methods 0.000 claims description 35
- 230000001174 ascending effect Effects 0.000 claims description 11
- 230000003028 elevating effect Effects 0.000 claims description 8
- 230000005284 excitation Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 120
- 238000010586 diagram Methods 0.000 description 13
- 230000001921 mouthing effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/22—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records
- G11B17/226—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records the magazine consisting of a single rotatable tray carrying the disks
Definitions
- the name of the birthplace disk ⁇ ⁇ and ⁇ are: raw S
- the present invention relates to disc recording and Z or playback equipment. In particular, it selectively checks the number of discs stored in the turntable and sends one report to the position of any disc. ⁇ Record and record LI record and Z or playback
- a disk recording and / or reproducing apparatus for recording and / or reproducing an information signal on a recording disk such as an optical disk, a magnetic disk, or a magneto-optical disk has been generally proposed.
- Such a disk recording and / or reproducing apparatus includes a disk rotation drive mechanism that holds and rotates the above-described recording disk, and a recording disk that faces the recording disk that is rotationally driven by the disk rotation drive mechanism.
- the recording disk is an optical disk, an optical pickup device is used as the pickup device.
- a plurality of types of recording disks having different diameters can be mounted as the above-mentioned disk recording and / or reproducing apparatus, and the recording and / or reproducing of information signals can be performed by selectively using these recording disks. Or, one that is configured to allow playback is proposed.
- Examples of a plurality of types of recording disks having different diameters which can be mounted on such a disk recording and / or reproducing apparatus include, for example, a large-diameter (12 cm diameter) optical audio disk. , And a small-diameter (8 cm diameter) optical radio disk.
- the disc recording and Z or reproducing apparatus has a plurality of recording discs for positioning and storing the discs. A tray is provided.
- the ⁇ ! Iijj product has a turntable of 3 ⁇ 4j, and the above 15 disks are placed in the ⁇ part of this turntable.
- a plurality of storage portions formed of circular recesses are arranged in the circumferential direction.
- a plurality of large-diameter storage sections corresponding to a large-diameter optical disk are provided around the rotation center axis of the turntable, and each large-diameter storage section is provided.
- the small-diameter storage section corresponding to the small-diameter optical audio disc provided on the bottom of the storage section is formed concentrically.
- the turntable is provided with an optical pick-up device and a disk table corresponding to the bottom surfaces of the large-diameter storage portion and the small-diameter storage portion, respectively, on the recording disk positioned by the disk positioning portion.
- a slot-shaped opening is formed for the opening.
- the large-diameter storage section and the small-diameter storage section rotate together with the turntable, and move around the rotation center axis of the turntable. Move along an arc-shaped trajectory.
- a disc table for chucking and rotating an optical audio disc is provided at the center of the large-diameter storage section and the small-diameter storage section.
- some of the conventional disc recorders and Zs or reproducing apparatuses have a two-motor loading type, which allows a single motor to move the tray in and out and raise and lower the optical pickup apparatus.
- a two-motor, loading system the tray is taken in and out and the optical pickup device is moved up and down by one drive gear, and a part of the drive gear is used for the optical pickup device. Since the up-down operation was performed, extra vibration was sometimes applied to the optical pickup device during reproduction of the recording disk, and there was a problem that the sound K was reduced.
- the present invention has been made in view of such a problem, and it is possible to obtain substantially the same effect as when three conventional motors are used with two motors, and to simplify the motor control system.
- the structure of the disc can improve the workability at the time of assembling, reduce the manufacturing cost, and eliminate the possibility of giving extra vibration to the pickup device during playback.
- the purpose is to provide a recording and Z or playback device.
- the apparatus main body is movably supported between a position protruding from the apparatus main body through an opening provided in the apparatus main body housing the disk rotation drive mechanism and a storage position in the apparatus main body.
- the tray that was At this time, it can be mounted on this tray, and 3 ⁇ 4! Number of discs can be stored along J! A turntable with a number of storage units, and a shift between the protruding position of the tray and the storage position IS, so that the disk rotation drive mechanism performs the disk chucking operation.
- the disk chucking operation can be performed in conjunction with the tray loading / unloading operation, and the tray can be inserted / removed during the playback operation of the chucked disk, thereby performing the chucking operation. It is possible to safely and reliably perform replacement projection of a disc other than the disc that was burned.
- the first operating mechanism and the second operating mechanism are constituted by a first gear train and a second gear train driven by a single drive source, and the first gear train and the second The drive of the second gear train is switched by a single drive source switching operation.
- the first gear train and the ⁇ 2 gear train driven by a single drive source
- the normal ⁇ cutting and the singing during reproduction can be selectively performed.
- the first operation mechanism and the second operation mechanism can be realized with a simple configuration.
- the first operation mechanism includes a main gear that is rotationally driven by a single drive source, and a disk rotation driving machine that is driven by the main gear.
- the disk drive unit comprises a lifting drive member that drives up and down with respect to the holding portion of the disk rotation drive mechanism, and this device further rotates the lift drive member after the disk drive unit reaches the lowered position.
- the invention of 4 provides a main gear driven by a negative excitation source, and a disk drive of an Elj mechanism driven by the main gear.
- the drive section is constituted by a descending drive member which drives the holding section of the disk rotating drive mechanism up and down with respect to the holding section, and this concealment is further performed when the operation mechanism of (2) is in operation.
- the second operating mechanism is described as a reverse gear driven by a main gear to take in and out of the tray, and the reverse gear includes a rack provided in the tray.
- a gear on the side of the gear that engages with the rear gear and an input gear that engages with the gear on the reverse side provided at the end of the gear are provided.
- the disk is chucked by the disk rotation drive mechanism, and the disk chucked by the disk rotation drive mechanism is stored in this device.
- the tray that is protruded and hidden by the second operation mechanism It is designed to open a locking mechanism that prevents movement toward the storage position 12. This prevents movement of the tray toward the storage position S of the u-type machine, prevents D-dating when the disk is replaced during production, and prevents turntables from rotating the disk. Prevents contact with driving machine drawings.
- the drawing of 37 shows a rock drawing, a main gear rotated by an excitation source, and a rocker that is swung by the main gear and engages with the tray. It is made up of levers.
- the locking machine can be simplified in structure, and the movement of the tray can be effectively stopped.
- the invention of claim 8 is characterized in that the position protruding from the apparatus main body through the opening provided in the concealed main body containing the disk recording and Z or reproducing section, and the disk recording and Z or reproducing section and the apparatus main body. It has a tray movably supported by the main body of the apparatus, and a plurality of storage sections rotatably mounted on the tray and storing a plurality of discs along the circumference. Question about the turntable, the ascending position where the information signal is recorded or played on the disc transported through the disc recording and / or Z or playback section, and the descending position located during the disc transport operation by the tray.
- a table opening mechanism for restricting rotation of the turntable when the disk recording and Z or reproducing unit is in the ascending position by the elevating drive unit.
- the table locking mechanism comprises an engaging projection provided on one of the turntable and the disk recording and / or reproducing section, and an engaging projection provided on the other. Composed of recesses is there. This fact, along with the as possible out of the table click mechanism in a simple drawing, other Nte one bull [uH 1 free ⁇ to ⁇ It is Ru can to win.
- the IB-1 ⁇ contains a disc recording / recording / playback unit having a pickup provided movably in the radial direction of the disc, and the disc recording / recording / playback unit.
- a tray supported by the IS main body so that the ⁇ [ ⁇ between the IS and the storage position in the IS main body can be freely moved between the position protruding from the hidden main holiday through the opening provided in the IS main holiday, and this tray And can be freely mounted on
- a turntable that accommodates multiple storage sections that can store up to 10 trays, and the tray's protruding position and storage position! And a drive mechanism to move the interrogation between: and an ascending position for recording or reproducing an information signal by picking up a disk that has been transported through the disk recording and Z or reproduction unit;
- An elevating drive unit that drives up and down between the lowered position that is located during the operation of transporting the disk by the ray, and the disk recording and Z or reproducing unit is deviated from the movement locus of the rotation center of the turntable in the apparatus body. It is a drawing that is arranged at the position where it was done.
- the turntable has a disk shape
- the distance from the trailing end of the tray to the storage unit facing the disk recording and Z or playback unit can be increased, and the disk recording and Z or playback can be performed accordingly.
- the section can be set relatively in front of the apparatus main body, the tray can be inserted deeply into the body of the apparatus, and the entire apparatus can be downsized.
- a notch is formed at the rear end of the tray, the cutout being large enough to allow the pickup disk to move in the radial direction. It is. This allows the tray to be inserted deeper into the device body.
- each of the plurality of storage portions of the turntable is formed at a position radially from the rotation center of the turntable.
- the notch has a notch in the diameter of the disc at the end of the pick
- the disc record and the ZLA are in a position deviated from the movement trajectory of the rotation center of the turntable.
- a suitable turntable is provided on the equipment where the section is provided.
- the notch is formed outward from the center of the storage portion, and the outside of the notch is the release end.
- the disk recording and / or reproducing unit can be moved relative to the notch of the rotatable turntable in the front-rear direction of the device S2.
- the disk record and the ⁇ or? ⁇ ⁇ The longitudinal direction of the notch of the storage part located at the position facing the raw part matches the longitudinal direction of the notch of the tray.
- the disc recording and / or reproducing unit can be relatively moved in the front-rear direction with respect to the notch of the tray and the notch of the turntable rotatably accommodated in the tray. it can.
- the plurality of storage portions of the turntable are formed at positions radially from the rotation center of the turntable, and the diameter of the pick-up disk is provided in each storage portion.
- a notch is formed along the movement trajectory in the direction, and the notch extends in the longitudinal direction of the notch with respect to the moving direction between the protruding position of the tray and the storage position when the tray is in the storage position.
- the m: 1 is formed by forming a notch. ⁇ outward from the center of the storage section, and the outer side of the notch as a release end.
- the disks ⁇ ⁇ and z or the raw portion can be moved along the respective notches from the outside of the tray and the turntable to the center of the disk storage portion.
- the invention of (17) is directed to a longitudinal direction of a notch of a storage portion of the plurality of storage portions of the turntable which is opposite to the discs ⁇ and Z or the reproducing portion, and a cutout portion of the tray.
- the tray and the turntable can be moved in and out of the main unit while the disk rotation drive mechanism accommodated in the main body of the apparatus is avoided by the cutout of the tray and the cutout of the turntable.
- the turntable rotatably supported by the tray can be rotated.
- the eighteenth invention is provided in a disk recording and / or reproducing unit having a pickup provided movably in a radial direction of the disk, and in a device main body in which the disk recording and / or reproducing unit is stored.
- a device main body in which the disk recording and / or reproducing unit is stored.
- a turntable having a plurality of storage sections for accommodating the discs around the periphery, and an ascending section for recording or reproducing information signals by picking up the discs on which the disc recording and Z or reproducing sections have been transported.
- the two motors for M-mounting the table are ⁇ ) ⁇ ⁇ . As a result, it is possible to safely perform ⁇ ⁇ normal mouth diving and singing during playing by using the motor of 2
- a twenty-second invention provides a disk recording and Z or reproducing unit having a pickup provided movably in a radial direction of a disk, and an apparatus main body containing the disk recording and Z or reproducing unit.
- a tray that is movably supported by the apparatus main body, and that is rotatably mounted on the tray, between a position protruding from the apparatus main body through an opening provided in the main body and a storage position in the apparatus main body.
- a turntable having a plurality of storage sections for storing a plurality of discs around the circumference, and recording or reproduction of a signal by picking up discs on discs transported by a disc recording and Z or reproduction section.
- a command is issued to move the tray in the direction S protruding from the storage position during the operation of the disc and / or the reproduction operation of the disc by the pick-up.
- a command is issued to move the tray in the direction S protruding from the storage position during the operation of the disc and / or the reproduction operation of the disc by the pick-up.
- a reverse gear is provided in the device, which is engaged when the rotary driving member rotates in the direction of ⁇ 2, and the tray is moved in the direction in which the tray protrudes by this reverse rotation. It is intended to be.
- the rotation of the rotary drive member is transmitted to the reverse gear, and the tray can be moved toward the protruding position through the operation of the reverse gear.
- a second invention provides a disk recording and / or reproducing unit having a pickup provided movably in the radial direction of the disk, and a disk recording and / or reproducing unit for storing the disk.
- a tray movably supported by the apparatus main body between a position protruding from the apparatus main body through an opening provided in the apparatus main body and a storage position in the concealed main body;
- a turntable that has a plurality of storage sections that are mounted and stores ⁇ ( ⁇ is an odd number of 3 or more) disks along the circumference, and a position of the ⁇ storage sections formed in the turntable.
- a lifting and lowering drive unit for driving the lifting and lowering unit between the lowered position that is located during the transfer operation, and the detecting unit is formed on a turntable, and ⁇ storage units are formed.
- Detected part to detect IS of part IS] and Detected part of ⁇ to detect position of each storage part ⁇ , Detected 3 ⁇ 4 of 3 ⁇ 41 and Detected of ;; Detection to detect 3 ⁇ 4 ⁇ , and a disk recording and ⁇ or playback unit is mounted.
- n storage units can be detected by detecting the detected part of ⁇ 1 by the detecting unit, and additionally, the detecting unit can detect the detected part of ⁇ 2.
- n positions other than n storage units can be detected, and disk recording and ⁇ or ⁇ raw S whose resolution is twice the number of storage units can be performed.
- the resolution of the first detected part is higher than the resolution of the second detected part.
- the first detected part is provided at each position corresponding to each storage part, and the second detected part is provided at FUj of the first detected part.
- Detected portions and ⁇ 2 detected portions are provided alternately.
- the first detection unit and the second detection unit can be continuously detected by one detection unit while being alternately repeated, and the number of detection units can be reduced to reduce the number of the detection units. Can be simplified.
- the device is configured to generate a turntable based on a detection output from a detection portion that has detected a second detected portion of the turntable when the tray moves in a protruding direction. ; Tr is rotated by a fixed angle. As a result, the tray moves in the direction in which the tray protrudes.
- the disk can be stored in an arbitrary storage portion, or Swap stored disks, etc. be able to.
- FIG. 1 shows the embodiment of the present invention and is a perspective view showing a state in which a tray and a turntable are pulled out from a main body.
- Fig. 2 shows the disc recording and Z or 3 ⁇ 4
- FIG. 9 is a plan view showing a part of the table and its table rotating machine m.
- FIG. 3 is a longitudinal sectional view showing a disk chucking state of the disk recording and Z or reproducing apparatus shown in FIG.
- FIG. m4 is a longitudinal sectional view of a part of FIG. 3, showing a state in which disc chucking is released.
- FIG. 5 is a cross-sectional view showing a state where the apparatus main body is removed from the disk recording and Z or reproduction apparatus shown in FIG.
- FIG. 6 is an explanatory view showing a digging mechanism in a digging state of the disc recording and Z or reproducing apparatus shown in FIG.
- FIG. 7 is an explanatory diagram of a ⁇ -ding mechanism showing a state in which a tray is pulled out from a normal loading state of the disc recording and Z or reproducing apparatus shown in FIG.
- FIG. 8 is an explanatory diagram of a ⁇ -ding mechanism showing a state in which a tray is pulled out during reproduction of the disc recording and Z or reproduction apparatus shown in FIG.
- FIG. 9 is a schematic explanatory view showing a dictating state of the disc recording and Z or reproducing apparatus shown in FIG.
- FIG. 1 is a schematic diagram showing a state in which the tray is slightly pulled out from the state in FIG.
- FIG. 11 is a schematic explanatory view showing a state where the tray is further pulled out from the state of FIG.
- Fig. 12 shows that the tray is slightly pushed in from the state of Fig. 11 and 1 This is a schematic diagram showing the UiW state of the figure.
- FIG. 13 is a schematic diagram showing a state in which a tray is pulled out during reproduction of the disc and / or] shown in FIG.
- FIG. 15 is a schematic diagram illustrating a state in which the turntable is rotated while skipping the turn table from the state of FIG.
- FIG. 16 is a schematic diagram showing a state in which the turntable is rotated from the state shown in FIG. 5 to the state shown in FIG.
- FIG. 17 is an enlarged plan view showing the disk recording and the reverse gear of z or prose shown in FIG. 1.
- FIG. 18 is an explanatory diagram showing a main part of another embodiment of the reverse gear of the disc recording and Z or reproducing apparatus shown in FIG.
- FIG. 19 is a bottom view showing an embodiment of an address area and a syllabary area relating to the present invention.
- FIG. 20 is an explanatory diagram showing a part of the address area and the number area shown in FIG.
- FIG. 21 is an explanatory diagram showing another part of the address area and the number area shown in FIG.
- a disk recording and Z or reproducing apparatus is configured as an apparatus for reproducing an optical audio disk as a specific example of a recording disk. .
- the disc recording and Z or reproducing apparatus is provided with an apparatus main body 1 as shown in FIG. 1 and the like.
- the device body 1 is composed of a box-shaped box body 1a opened on the front side and a box body 1a. 1 ⁇ )-a's f ”ij Hii Before opening the opening of liii panel ⁇ b, and ⁇ ⁇ ! Panel 1 has J. ⁇
- the f] H opening 1 c of the ijij ⁇ panel 1 b is provided with a substantially rectangular plate-shaped tray 2, and the tray 2 protrudes from the main rest 1.
- the mounting position of the IS and the storage position in the main body 1 is movably supported by the main suspension 1.
- the sculptureii panel 1b of the mounting IS main body 1 has an external '0
- the power source supplied from the power source is turned on ⁇
- a skip button 3c for rotating the table 4 and other push buttons are operably exposed
- 3d is a display window for displaying an input state, a playing state, and the like.
- Body 1 A base member 5 having substantially the same size as the tray 2 is fixed to the bottom of the box body 1a of the tray 2 as shown in Fig. 3 to Fig. 5.
- Both sides of the lower surface of the tray 2 Are formed with guide grooves 2a, 2a extending in the front-rear direction, and guide projections 5a, 5a slidably engaged with the guide grooves 2a, 2a.
- the tray 2 is formed on the upper surface of the member 5, and the tray 2 is linearly moved in the front-rear direction with respect to the base member 5 by engagement of these two guide grooves 2 a, 2 a and the guide protrusions 5 a, 5 a.
- 6a and 6b are holding pieces attached to the base member 5, and these holding pieces 6a and 6b are lateral grooves 2 provided on the side surface of the tray 2. b and 2b are engaged with each other to prevent the tray 2 from lifting when pulled out.
- a disc rotation drive mechanism 8 for holding and rotating the optical discs 7a and 7b, and a disc rotation drive mechanism 8 are provided at the rear of the box body 1a in the depth direction in which the tray 2 is inserted and removed.
- Shafts 10b and 10b are provided on the rear side of the rocking member 10 on the side of i3 ⁇ 4, respectively, and these shafts 10b and 10b are formed by cutting the notch 2:
- the ⁇ ′ 2 ⁇ ⁇ member 1 ⁇ is configured to be able to swing vertically with respect to the base member 5 by being fitted into the base member 5.
- the disk rotation drive mechanism 8 includes a spindle motor 11 serving as rotation drive means, a disk table 12 attached to a drive shaft of the spindle motor 11, and a disk drive 12. It is composed of a chucking plate 13 which holds the optical disks 7a and 7b between the table 12 and the flil.
- the spindle motor 11 and the disk table 12 form a disk drive section of the disk rotation drive mechanism 8, and the chucking plate 13 forms a clamping section of the disk rotation drive mechanism 8.
- the spindle motor 11 is mounted on the front end side of the swing member 10 with its drive shaft facing upward, and the optical disk 7a, 7b A convex portion having a substantially conical shape is formed so as to be aligned and held.
- the chucking plate 13 is rotatably supported by an external bracket 14 so as to face above the disk table 12.
- the arm bracket 14 has a substantially L-shaped longitudinal section, and is mounted so that one side is fixed to the rear surface of the box body 1a and the other side is deployed horizontally.
- a chucking plate 13 is supported at the tip of the horizontal side so that it can float.
- the optical pickup device 9 includes a light source such as a laser die, a predetermined optical device such as a beam splitter and a collimator lens, and the like.
- the optical block includes a photodetector such as a photo diode and a photo diode, and an objective lens drive mounted on the optical block.
- the objective lens drive iS supports the objective lens for emitting the light beam emitted from the optical block unit onto the signal storage of the optical discs 7a and 7b so as to be movable and projectable.
- the optical pick-up IS 9 having such a configuration is supported by a guide shaft 16 attached to the upper surface of the excitation member 1 ⁇ , is disposed behind the disk table 12, and is It is drawn so as to be movable in the front-rear direction, which is the direction in which it comes in and out of contact with the table 12.
- the objective lens of the optical pick-up device 9 is directed upward, and the optical axis of the objective lens is substantially parallel to the drive shaft of the spindle motor 11.
- the turntable 4 for positioning and storing a plurality of types of optical disks 7a and 7b having different diameters is provided.
- the turntable 4 is formed in a disk shape thinner than the thickness of the tray 2, and is inserted in a circular recess formed on the upper surface of the tray 2.
- the turntable 4 is rotatably supported by a center shaft 2 d provided at the center of the tray 2, and is rotatably attached to the tray 2. For this reason, as shown in FIG. 2 and the like, an inner gear portion 4a is formed in the radially inner portion of the turntable 4 over the entire circumference in the circumferential direction, and the inner gear portion 4a is formed.
- a table rotation mechanism 17 for rotating and driving the turntable 4 through the shaft is disposed near the center axis 2 d of the tray 2.
- the table rotation mechanism 17 includes a table tilling motor 18 having a drive shaft 18a mounted on a drive shaft, and a drive bulge 18 via a drive belt.
- the table rotation motor 18, the worm gear 19, the pinion 2 ⁇ ⁇ , and the table rotation gear 21 are fixedly or rotatably supported by a unit plate 17 a.
- the table rotation machine drawing 17 is mounted on the tray 2 via the unit plate 17a.
- the plurality of types of optical disks 7a and 7b are, for example, an optical disk having a diameter of 12 c Tin as the large-diameter optical disk 7a, and a small-diameter optical disk.
- An optical audio disc with a diameter of 8 cm is applied to each disc 7b.
- a large-diameter optical disk is placed on the upper surface of the turntable 4 as shown in Fig. 1 and Fig. 2.
- a plurality of large-diameter storage sections 22 for positioning large-diameter discs corresponding to the diameter of a are formed along the circumference (in the circumferential direction) on the same circumference with a predetermined Ri] separation. I have.
- each large-diameter storage section 22 a small-diameter storage section 23 for positioning a small-diameter disc corresponding to the diameter of the small-diameter optical disk 7b is concentric with each large-diameter storage section 22.
- the large-diameter storage section 2.2 and the small-diameter storage section 23 forming this set form a disk positioning section.
- the turntable 4 is connected to the radially arranged disk positioning sections II, and the turntable 4 has the center of the optical discs ⁇ a and 7 b positioned by the large-diameter storage section 22 or the small-diameter storage section 23.
- Parts 24 are formed respectively. These notches 24 are provided in the large-diameter storage section 22 and the small-diameter storage section 2, respectively.
- each disk position S extends from the center of the S determining portion to the open end of the turntable 4 turns.
- a slit 24 a for stopping rotation of the turntable 4 is formed at the bottom of each cutout 24.
- a stopper 15 provided at the tip of the swing member 10 on the swing side is detachably engaged with the slit 24a. That is, when the turntable 4 is in the predetermined position 11 and the swinging member 10 is pulled up to enter the disk chucking state, the stopper 15 is moved into the slit 24a. The rotation of the turntable 4 is prevented by the engagement.
- the stopper 15 forms an engagement projection, and the slit 24a forms an engagement recess.
- the stopper 15 and the slit 24a turn the stopper.
- a table opening mechanism that regulates the rotation of the table 4 is configured. It is to be noted that a predetermined address is assigned to the disk positioning section in advance for each set. In the present embodiment, addresses 1 to 5 are assigned.
- a disc detection optical sensor 26 serving as a detection unit for detecting the presence or absence of the optical disks 7a and 7b is provided on the tray 2.
- an optical sensor 27 for detecting addresses assigned to the respective sets of the large-diameter storage section 22 and the small-diameter storage section 23.
- the optical disk 7a or 7b exists in either the large-diameter storage section 22 or the small-diameter storage section 23 of each disk positioning section of the turntable 4. It is to detect whether or not. Therefore, in each small-diameter storage portion 23 of the turntable 4, a disc detection through-hole is provided so as to be equiangularly spaced about the center axis 2d.
- the disc detection river optical sensor 2 ⁇ ⁇ is disposed on the tray 2 at a position on the tray 2, which is on the side of the disk detection river ⁇ the hole 25 ⁇ .
- the optical sensor 26 for detecting a disc is configured to connect a light emitting element such as an LED and a light receiving element such as a D (photodiode), and to detect light emitted by the light emitting element. It is configured to detect the reflected light by the light receiving element.
- the optical sensor 26 is used when the turntable 4 is set at a predetermined rotational position IS, that is, when any disk storage unit is positioned above the optical pickup device iS 9.
- the address detection optical sensor 27 detects which address the large-diameter storage section 22 and the small-diameter storage section 23 of each disk positioning section of the turntable 4 belong to. is there. Therefore, a ring portion 4b is formed on the lower surface of the turntable 4 at a radially intermediate portion so as to be concentric with the center axis 2d.
- the ring section 4b of the turntable 4 has five address areas A to A5, which are the first detected parts for specifying the positions of the set 51 addresses, and these addresses.
- the five number areas B 1 to B 5, which are the second detected parts for specifying the numbers of the numbers, are provided so as to be alternated.
- Fig. 19 ⁇ As shown in Fig. 21, address areas A1 ⁇ ⁇ 5 at 5 ⁇ are equally spaced (72 °) in the circumferential direction so as to divide the ring part 4b into five. It is set at the R3 interval, and each address area ⁇ 1 to A5 is equal to the area of 30 °. Then, the address areas B 1 to B 5 are set at five adjacent address areas [HI. Therefore, 5 ® number areas B 1 to B 5 are also set in the direction of a regular skin (72 °), and each has an equal area of 42 °.
- the large-diameter storage section 2 2 and the small-diameter storage section 23 of the DISC ⁇ ⁇ are defined on the address area ⁇ 1, and the DISC 2 is set on the address area ⁇ 2.
- DISC 3 to DISC 5 are set on ⁇ 3 to ⁇ 5 respectively.
- each address rib b each representing a symbol specified in each address area # 1 to A5 are provided. That is, the number area B 1 representing the address 1 corresponding to DISC 1 is provided with two ban land ribs b, and the address ribs b and b Rij have the same width as the address rib b. A slit of width is formed. Also, the number area B2 representing address 2 corresponding to DISC 2 is provided with three address ribs b, and these address ribs b and bi] have the width of the address rib b. A slit c having a width equal to that of is formed.
- the area li 3 has an area ⁇ b, and the area 4 in the area of DIS (: i J ⁇ ⁇ ⁇ ⁇ area ⁇ 4
- the five area ribs b have power ⁇ and the area No. 5 representing address 5 corresponding to DISC 5 is provided with six area ribs b respectively, and the adjacent address ribs b, bf
- the width of these address ribs b and the slit c of the new il are formed, respectively.
- These address ribs b as shown in Figs. It is formed wider than the location slit a, and the location slit a is distinguished from the address rib b by the size of the width.
- the respective address areas ⁇ 1 to ⁇ 5 are based on the turntable 4 from the state where two disks can be exchanged simultaneously as described later.
- FIG. 19 it is set at a position shifted by 108 ° (72 ° + 36 °) clockwise in FIG. That is, all the numbers in the address areas A1 to A5 and the number areas B1 to B5 are sequentially incremented in a counterclockwise direction, and the number area is located to the left of the DISCI address area ⁇ 1.
- B3 is located, and the address area # 2 of DISC2 is located to the left of this number area B3.
- the address area B4 is located on the left side of the address area A2, and the address area A3, the address area B5, the address area A4, the number area B1, and the address area ⁇ 5 and signal area B 2 are located respectively.
- the ground detection river light sensor 27 is arranged on the tray so that the ring 1 b having 3 5 is set to fire.
- the optical sensor 27 reads the number and width of the location slits a in the address areas A1 to A5 of the ring section 4b and detects the location of each address area.
- the number and width of the S ground rib b in the number area B1 to B5 of the ring part 4b are also read out, the number of each ground area is detected, and the respective detection signal is output. I do.
- This address detection optical sensor 27 has a light emitting element such as a £ 0 ?? 0 (photodiode), emits light from the light emitting element toward the light receiving element, and positions the ring 4b between the light emitting element and the light receiving element. Detects the transmitted light that passes through lit a and the opaque part that is blocked by the grounding rib b. Based on the detection result of the optical sensor 27, the number of address areas ⁇ 1 to A5 is determined from the difference between the time when light passes through the position slit a and the time when light passes through the ground check rib b. The areas B1 to B5 are determined.
- each address detecting optical sensor 27 detects the first position slit a, that portion is detected. It can be seen that the area is one of the five address areas A 1 to A 5. And each address area A Since 1 to A5 have three place IS slits a and so on, after detecting the first place IS slit a, the location i i. After passing through (or even after a predetermined number of passes), the turntable 4 is stopped, and the stop position ⁇ is set at the position set in the sub-branch of each ⁇ ground area A1 to A5. By configuring so as to be at the center of the center, each ground area is aligned with the center of ⁇ 1 to ⁇ 5 (in Fig. 21, CP4 of DISC 4th IS or CP 5 of DISC 5th IS) can do.
- the optical sensor 27 detects the address rib b
- the area is one of the 5 ⁇ signal areas B1 to B5.
- the five number areas B1 to B5 have a specific number (in this embodiment, 1 added to each address number) assigned to the number areas B1 to B5.
- the rib b is provided, the previous number area that has already been detected according to the rotation direction of the turntable 4 (If the previous number area has not been detected, the next number area The number area currently detected can be specified based on S.
- the turntable 4 is stopped after a predetermined time has elapsed since the first address rib b of S is detected in the currently detected signal area (or after a predetermined angle of rotation).
- the slit c whose stop position is set at the center of each of the number areas B1 to B5 is configured to be at the center of the address rib b, so that the center of each of the number areas B1 to B5 is formed.
- CA 1 at DISCI or C C2 at DISC 2 can be registered.
- the combination of the address detection optical sensor 27 and the address areas A1 to ⁇ 5 and the number areas ⁇ 1 to ⁇ 5 detects the stop position of the turntable 4, and the two methods described later. Can be loaded immediately, and can be loaded and played. Disc loading with this normal loading In the log, five ⁇ ground areas ⁇ 1 to ⁇ 5 place slit a detects the ⁇ stop position (5 ⁇ ) ⁇ of turntable 4, and the 3 ⁇ 4 sub In order to replace the disc by turning, the turntable 4 is located at a total of 101 locations, including the above-mentioned stop position IS and the stop position (5) of the number rib B of the 5ISiiiTr number area B1 to B5. The stop position can be detected.
- the wording of the welcome is that the turntable 4 is rotated by a predetermined angle in a predetermined direction while pulling out the tray 2, and the optical pickup is mounted! After the disc positioning section facing the position 9 is brought out to the front of the device, the tray 2 is pushed into the device while turning the turntable 4 in the reverse direction by a predetermined angle, and the disc positioning portion is initially set. A series of operations for returning to the position facing the optical pickup device 9. In this normal loading operation,? ⁇ Before birth, set the optical disc 7a or 7b in the large-diameter storage section 22 or the small-diameter storage section 23 of the turntable 4 to make it reproducible.
- druming during playing refers to pulling out the tray 2 while playing the disc, rotating the turntable 4 in an appropriate direction by a predetermined angle, and then pushing the tray 2 into the device to play the disc. This refers to a series of operations for returning the disk positioning unit containing the disc to the position facing the original optical pickup device 9.
- the optical disc ⁇ a or 7b is set in any large-diameter storage section 22 or small-diameter storage section 23 during playback, or the optical disk 7a set in advance is set. Or, replace 7b with another optical disc to make it reproducible.
- the tray 2 is supported in a cantilever manner by the tray support mechanism in a permanent manner, if the draw-out distance of the tray 2 becomes long, the tray support is performed according to the draw-out distance.
- the support force of the mechanism may increase, and play may occur in the tray support mechanism, making it impossible to ensure smooth movement.
- 22 can only protrude to the ij iLi of the tree ⁇ ⁇ in the front-back direction. Therefore, when the tray 2 is pulled out, the number of discs to be replaced is reduced to one or two.If you want to replace three or more discs, turn table 4 is applied. : Suitable for tc direction: ⁇ !
- the disc position m determining portion of the turntable 4 is set to 1:01 at 51 1 places (odd number ⁇ places) in the direction, one disc positioning is performed. On the other side, the center of the two disk positioning parts [1] will be located. For this reason, the amount of movement of the tray 2 is different between the normal loading and the loading while playing, so that the two discs have two positions compared to the normal loading where one disc positioning part is completely exposed.
- the protruding amount of Tray 2 is larger during mouth digging during performance to completely expose the disc positioning section.
- the one disk positioning portion located on the opposite side is located in the left-right direction of the tray 2. It will be located in the center. Since the turntable 4 has a disk shape, the length in the diameter direction passing through the center portion of the turntable 4 becomes longer. Therefore, if the optical pickup device 9 is installed at the center in the left and right direction of the tray 2 as in the conventional disc recording and reproducing device of this type, the depth dimension of the device body 1 becomes longer. The entire disc recording and playback device becomes large.
- the optical pick-up device 9 is moved laterally from the center of the tray 2 in the left-right direction. (A position deviated from the movement trajectory of the rotation center of the turntable 4) can be suppressed to some extent.
- the turntable 4 is disc-shaped, so the V-Ding position [&: from the rear end of Tray 2 This is because the distance to the heart can be increased: the light pick-up device can be moved to the front of the tree rest by a small amount.
- the ⁇ stop position ⁇ of the turntable 4 is set to 5 ⁇ in accordance with the number of disc position IS determining portions.
- the turntable 4 is divided into five parts.
- This embodiment satisfies such a requirement, and the 10 address areas are equally spaced by adding the five address areas B 1 to B 5 to the above five address areas ⁇ 1 to A 5.
- the resolution (rotation angle) of the turntable 4 can be reduced from 1/5 (72 °) to 1/10 (3 6 °)).
- the exposed portion of the turntable 4 is provided with one positioning portion (first to third) for accommodating the disc to be played.
- the resolution is 1/5 and the optical pickup device 9 is moved laterally from the center of the tray 2 in the left-right direction.
- two-fifth rotations (144 °), which is an integral multiple of the resolution of 1/5, provide five positions.
- Either of the determining parts can be aligned with the optical big-up S :.
- the stopping position ⁇ ⁇ , ': of the turntable 4 can be controlled only by the ground region ⁇ 1 to ⁇ 5 of 5 1 ⁇ .
- the resolution is 1 ⁇ 5 and the optical pickup device: 9
- the turntable 4 is moved to the side of the tray 2, even if the turntable 4 is rotated by an integral multiple of the resolution 1 ⁇ 5, any of the 5 places is determined by the optical pickup device IS 9.
- the turntable 4 cannot be controlled to a position where two discs can be exchanged at the same time. Therefore, in this state, the tray 2 cannot be pushed in.
- the stop position of the turn table 4 can be detected also by the number regions B1 to B5 so that the resolution is reduced by 1 /. By setting the value to 10, any one of the positioning portions at the five peripheral places can be aligned with the optical pickup device 9. As a result, the tray 2 can be pushed in, and disc replacement during playback can be executed safely and reliably.
- the depth dimension of the apparatus becomes longer and the disc recording and Z or the reproducing apparatus as a whole becomes longer.
- the optical pickup device 9 could be provided at a position deviated laterally from the center of the tray 2 in the left-right direction. As a result, the depth dimension of the disc recording and Z or playback device can be shortened, and the size of this type of disc recording and Z or playback device can be reduced.
- the ⁇ degree of the address rib b is the precision of the location-slit slit a. Rougher ones do not need to be accurate.
- the' ⁇ ⁇ rest corresponds to the 5 ⁇ ⁇ ' ⁇ disk positioning part.
- the set position i of the slit a especially the center position of each address area ⁇ 1 to A5, which is the center position of the slit a is the disk positioning part, so the hidden slit a Must be formed with a precision i.
- the address rib b is a means for specifying the position 1 of the turn table 4 in the address areas ⁇ 1 to ⁇ 5 as described above, and two disks during disk playback.
- the accuracy is not required to be high as long as it is used to stop the turntable 4 at a position where it can be exchanged at the same time, and it can be recognized that the land is the bunk land rib b.
- the tray 2 is formed with a rack 2 e extending in the front-rear direction as shown in FIGS. 5 to 8.
- the rack 2 e has a reverse gear.
- Rack side gear 28 a provided on 28 is engaged.
- the rack gear 29a provided on the main gear 29 as a rotary drive member is always in a detached state, and after the main gear 29 rotates a predetermined angle, the rack is rotated. It is configured to be compatible with part 2e.
- the reverse gear 28 has a different pitch circle from the rack gear 28a, but has the same angle per tooth and the number of teeth.
- the same input side gear 28 b is formed at a predetermined interval in the axial direction. In order to equalize the angle per tooth, the input gear 28b is formed by reducing the size of the module and the size of the first tooth.
- the input gear 28 b of the reverse gear 28 is configured such that the reverse gear 29 b provided in the main gear 29 is always in a disengaged state and can be engaged after rotating by a predetermined angle. Have been.
- the rack gear 28 a and the input gear 28 b of the reverse gear 28 are, for example, l As shown in Fig. 8, & may be shifted from each other, and the gap between I-gears 28a and 2b is determined at will according to the layout of the gaisen that is used. be able to.
- the gear 28 is rotatably supported on the base member 5 by a reno, '-square pivot 30, and the main gear 29 is also pivotally supported by the main gear pivot 31. It is supported by M-IS 5 in 5th.
- the main gear 29 has an inner gear portion 29c formed on the entire circumference in the circumferential direction.
- the gear transmission 29 is connected to the inner gear portion 29 via a gear transmission.
- the ⁇ -ding motor 32 which is the excitation source of the motor, is connected so as to be able to transmit the excitation.
- the ⁇ -ding motor 32 is attached to the base member 5 with the drive shaft directed downward, and the drive boss 32 a is attached to the drive shaft.
- the other end of the drive belt 33 one end of which is hung on the drive pulley 32a, is connected to a driven pulley 34a, which is attached to one end of a support shaft 34 rotatably supported on the base member 5. It is hung.
- An input gear 35 is attached to the other end of the support shaft 3, and the input gear 35, the support shaft 34, and the driven pulley 34a are integrally driven to rotate.
- the input gear 35 is formed with an input gear 36 a of an intermediate gear 36 that is rotatably supported by the base member 5 and is formed integrally with the input gear 36 a.
- the output gear portion 36 b is connected to the inner gear portion 29 c of the main gear 29, and the upper part of the main gear 29 has a pivot 31 for the main gear as a center.
- the inner cam portion 29 d formed in a substantially circular shape and a predetermined gap formed concentrically with a part of the inner cam portion 29 d are formed on the fiij side of the device body 1.
- An outer cam portion 29 e having a substantially arc shape is provided. Between the inner force part 29 d and the outer force part 29 e, a force protrusion 2 f protruding from the ifii below the tray 2 is detachably interposed. I have.
- the cam convex portion 2 f extends in the direction of insertion and removal of the tray 2.
- the inner cam portion 29 d and the outer cam portion 29 f are formed. Intermediate with ilij with part 29 e to prevent the tray 2 from being pulled out.
- the outer cam portion 29 e is rotationally displaced away from the cam convex portion 2 f, so that the tray 2 can be pulled out. It is composed of
- the main gear 29 is provided with a carrying drive gear 29 f which can be combined with the gear part 37 a of the elevating drive member 37 which is an elevating drive part.
- the drive member 37 is rotatably supported by a lifting drive pivot 38 attached to the base member 5.
- the lifting / lowering driving member 37 has an inclined sliding portion 37b in which a guide projection 10a protruding from the tip of the swinging member 10 on the swinging side is slidably engaged.
- the inclined sliding portion 37b is provided with a rack-side gear 29a and a reverse-side gear.
- the first drive unit is formed by the second drive unit 29b
- the second drive unit is formed by the lifting drive gear 29f
- the inner drive unit 29d and the outer drive unit 29e form the second drive unit.
- the hook part is formed.
- the total height of each of the end teeth 37 d located at both ends of the gear portion 37 a is set higher than the total height of the other teeth, so that the drive gear 29 of the main gear 29 is moved up and down. The relationship with ⁇ has been increased.
- the inclined sliding portion 37 b is formed in a spiral shape around the vertical drive ffl pivot 38, and the guide projection 1 ⁇ a is located at the top of the inclined sliding portion 37 b.
- the swinging member 10 is held in a substantially horizontal state.
- This state is a state in which the optical disk 7a is chucked by the disk rotation drive mechanism 8.
- the guide projection 10a descends and the lowermost part of the inclined sliding part 37b
- the ⁇ member 10 is pulled down from the '1'- ⁇ 1 ⁇ b, which is protruded from the rear 1 end, to the 11 ⁇ center.
- This state is a state in which the chucking of the optical disk 7a by the disk rotation driving device # 8 is released.
- the rocking member 1 has only to rock within the above-described circuit range of the inclined sliding portion 37b, and must be fixed otherwise. Therefore, the gear portion of the lifting / lowering drive member 37: 7a and the lifting / lowering drive gear 29f of the main gear 29 corresponding to the gear portion are the most prominent from the upper end of the inclined sliding portion 37b. The necessary number of teeth are provided to move the guide projection 10a to the lower end.
- a cylindrical surface 29 g is provided on the portion of the main gear 2 other than the vertical drive gear 29 ⁇ , and the cylindrical surface 29 g is provided on both sides of the gear portion 37 a of the vertical drive member 37.
- An arc surface 37c slidingly contacting g is provided, and a rotation stopping mechanism for the elevation drive member 37 is configured by using the arc surface 37c and the cylindrical surface 29g.
- reference numeral 40 denotes a lock lever.
- the lock lever 40 has one end thereof swingably attached to the base member 5 by the support shaft 41. The other end is provided with a stopper portion 4a, which extends to the opening 1c side of the front panel 1b.
- a cam input portion 4 ⁇ b protruding toward the main gear 29, and the cam input portion 40b is formed on the main gear 29. It is in contact with the outer peripheral surface.
- Reference numeral 42 denotes a spring that urges the lock lever 40 to press the power input unit 4 ⁇ b against the main gear 2.
- a locking mechanism is provided in relation to the reverse gear 28 and the rack 2e.
- This locking mechanism has the same rack as the rack portion 2e, and a part of the rack is overlapped with the end of the rack portion 2e.
- a slide gear 43 attached to the slide member 5 so as to be slidable in the front-rear direction, a return spring 44 for urging the slide gear 43 rearward, and a slide gear 43 are provided.
- the lock operating mechanism having such a configuration operates to move the tray 2 forward by the rotational force of the reverse gear 28 during the playback operation, and to stop the movement of the tray 2 in a stopped state.
- the operation of rotating the gear 29 and swinging the lock lever 40 is performed.
- the stopper section 4 at the other end ⁇ a is separated from main ending 29.
- the stopper section 40a moves on the transfer trajectory of the stopper receiving section 2g, so that the push-in operation of the tray 2 becomes impossible.
- Reference numeral 47 shown in FIGS. 6 to 8 denotes a set lever, which is swingably supported by the base member 5 by a support shaft 48.
- the set lever 47 engages with the main gear 29 when the main gear 29 comes off the rack 2c and a neutral point is formed during loading. And to prevent its rotation.
- An engagement protrusion 47a is formed at one end of the set lever 47, and the engagement protrusion 47a is brought into contact with the main gear 29 by a spring 49 pulling the other end.
- the main gear 29 is provided with a V-shaped projection receiving portion 29i at 3li.
- the first gear train is constituted by the rack gear 29 a of the main gear 29 and the rack portion 2 e of the tray 2, and the first gear train and the lifting drive member 37 These constitute the first operation mechanism.
- a second gear train is constituted by the reverse gear 29 b of the main gear 29, the reverse gear 28, and the rack portion 2 e, and the second gear train forms the second gear train. Is configured.
- the disc recording and / or reproducing apparatus has a control concealment function as a control means having a CPU (central processing unit), a RAM * ROM (recording apparatus) and the like.
- This control device receives various signals from the optical disk sensor 26 for disc detection, the optical sensor 27 for address detection, the operation button 3b, the skip button 3c, and other concealment. Based on these input signals, the controller II controls the table rotation motor 1 ⁇ ) ⁇
- FIG. 6 shows a mouth-dancing state in which the tray 2 is completely housed in the device S main body 1, and a schematic diagram of this state is shown in FIG.
- FIG. 7 shows an unloading state in which the tray 2 is completely pulled out from the normal loading state, and a schematic diagram of this state is shown in FIG.
- ⁇ on the front panel 1b of the main body 11 of the device 11 Turn on the source button 3a, supply power to the disc ⁇ and Z or the playback device, and then press the operation button 3b. Turn on.
- electric power is supplied to the mouthing motor 32 through the operation of the control device, and the rotational force of the drive shaft of the motor 32 is driven from the drive bulge 32 a via the drive belt 33 to the driven boogie 3.
- the input gear 35 which is transmitted to the driven pulley 34a and is integral with the driven pulley 34a in the rotational direction, passes through the input gear 36a and the output gear 36b of the intermediate gear 36.
- the power is transmitted from the gear section 29 c to the main gear 29.
- the main gear 29 is driven to rotate in the counterclockwise direction X, which is the first direction in FIG. 6, and first, the elevation drive gear 29 f of the main gear 29 is moved to the elevation drive member 37.
- the lifting drive member 37 is engaged with the gear section 37a by the number of teeth, and Drive 0 fe in the direction.
- the guide protrusion of the shaking illij member 1 () ⁇ ] () is guided by the ⁇ ' ⁇ t> of the descending i ⁇ member 37.
- the rotation amount of the turntable 4 is determined by the optical sensor 2 for disk detection. 6 and ⁇ ground detection optical sensor 2? And the control is output from the iiiU control based on those detections, and as shown in FIG. 11, the durn table 4 rotates a predetermined time counterclockwise
- the mouthing motor 32 rotates in the reverse direction to the above through the operation of the control device, and the main gear 2 is rotationally driven in the clockwise direction.
- the rotational force of the main gear 29 is transmitted from the rack 2 e to the tray 2, and the train 2 and the turntable 4 force 1 1 are pulled rearward from the state of being drawn out as shown in FIG. Move to B and change to a state of being retracted about halfway as shown in Fig. 12.
- the lifting drive gear 29 f of the main gear 29 comes into mesh with the gear portion 37 a of the lifting drive member 37, and the lift drive member 37 is rotated in the counterclockwise direction.
- the table rotation motor 18 rotates in the reverse direction as described above, and the turntable 4 is moved two positions clockwise R in the opposite direction until address 1 corresponds to the original optical pickup device. Let it.
- the swinging member 1 () is pushed up by the action of the inclined sliding portion 37 b, the optical disc 7 a is chucked by the disc rotation drive mechanism 8, and the information of the optical disc 7 a is
- the optical pickup device ⁇ comes to face the recording surface (the state shown in Fig. 3).
- the audio recording / reproducing device or u-disk Ending is the recording surface.
- FIG. 38 shows an unmouthing state in which the tray 2 is completely pulled out from the mouthing state during the performance.
- FIG. 13 shows a schematic diagram of this state.
- the turntable 4 is rotated in the counterclockwise direction L by the table rotation motor 18 so that addresses 2 and 3 are exposed.
- the rails 2 and the table 4 are largely exposed, and the optical discs 7a and 7b can be mounted on the exposed addresses 2 and 3.
- the main gear 29 and the lifting drive member 37 are formed separately, and the rotation of the lifting drive member 37 is stopped by the main gear 29, so that the rotation of the main gear 29 is accompanied. It is possible to prevent the extra movement that occurs from being applied to the swinging member 10 via the lifting drive member 37. Therefore, there is no possibility that extra vibration due to the rotation of the main gear 29 will be given to the swing member 1 ⁇ . Therefore, even during a performance, it is possible to exchange the other optical disks 7a and 7 without giving ⁇ to the performance.
- the rotation angle of the turntable 4 is controlled so that two optical discs can be exchanged each time. Therefore, in the state shown in FIG. 14, from the place where the disk rotation drive mechanism 8 and the optical pickup device are located, K is also a disk storage position near the address 1 and the land 5 respectively.
- the notch 2 4 is displaced in the direction of '('), and when the tray 2 is pushed in as it is, the moving member 1 ⁇ ⁇ is lifted and is in the playing state. :
- the lock mechanism will operate.
- the projection button 3b is turned on to enter the loading state. This is the opposite of the above-mentioned undercutting.
- the controller drives the table rotation motor 18 to rotate the turntable 4 so that the empty address where no optical disk is mounted faces the disk rotation drive drawing 8 etc. Invert. Accordingly, in this case, the optical disc being played is stored in an empty address (DISC 1 in the present embodiment).
- the angle per tooth of the gear 28a of the reverse gear 28 and the gear 28a of the input gear 28b having different pitch circles is set to be equal to each other. Therefore, the position of the reverse gear 28 at the time of the prosecution can be made to be insignificant, and the string of the reverse gear 28 can be tied up in a high position. Therefore, there is no need to take special measures such as using a special jig for positioning the reverse gear 28 or putting a mark on the parts, as in the case of the conventional stringer.
- the rack gear 28 a and the rack 2 e of the tray 2 engage with the rack IS 2 at the position IS 1, and the input gear 28 b And the reverse gear 29 b of the main gear 2 can be engaged with the reverse gear 29 b, thereby greatly improving the workability during assembly.
- the present invention is not limited to the above embodiment.
- the turntable 4 has a large diameter for storing the optical disks 7a and 7b.
- the large-diameter storage section 22 and the small-diameter storage section 23 may be provided at the 6 ⁇ or more locations. Needless to say, the number may be four or less.
- the present invention is applied to a disc reproducing apparatus has been described. However, a disc for recording information on a disc—recording and concealment or both recording and reproducing are performed.
- the present invention can also be applied to a disk recording / reproducing device that can perform the operation. As described above, the present invention can be variously modified without departing from the gist thereof.
Landscapes
- Automatic Disk Changers (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69424833T DE69424833T2 (de) | 1993-03-05 | 1994-03-07 | Plattenaufzeichnungs- und/oder wiedergabegerät |
EP94908499A EP0639832B1 (en) | 1993-03-05 | 1994-03-07 | Disk recording and/or reproduction apparatus |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5/45336 | 1993-03-05 | ||
JP4533693 | 1993-03-05 | ||
JP03264194A JP3531200B2 (ja) | 1993-03-05 | 1994-03-02 | ディスクプレーヤ装置 |
JP6/32641 | 1994-03-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994020959A1 true WO1994020959A1 (en) | 1994-09-15 |
Family
ID=26371226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1994/000355 WO1994020959A1 (en) | 1993-03-05 | 1994-03-07 | Disk recording and/or reproduction apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US5742571A (ja) |
EP (1) | EP0639832B1 (ja) |
JP (1) | JP3531200B2 (ja) |
DE (1) | DE69424833T2 (ja) |
WO (1) | WO1994020959A1 (ja) |
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JP3294712B2 (ja) * | 1994-05-24 | 2002-06-24 | シャープ株式会社 | ディスク再生装置 |
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JP3537960B2 (ja) * | 1996-07-31 | 2004-06-14 | パイオニア株式会社 | ディスクプレーヤ |
US5978325A (en) * | 1996-09-13 | 1999-11-02 | Samsung Electronics Co., Ltd. | Method and apparatus for chucking an optical disk and driving a tray in optical disk player |
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DE69825481T2 (de) * | 1997-12-24 | 2005-07-28 | Teac Corp., Musashino | Plattengerät |
JP4041569B2 (ja) * | 1997-12-26 | 2008-01-30 | クラリオン株式会社 | ディスクプレーヤ |
JP3556094B2 (ja) * | 1998-06-17 | 2004-08-18 | 松下電器産業株式会社 | 光ディスク装置 |
JP2002074807A (ja) * | 2000-08-29 | 2002-03-15 | Funai Electric Co Ltd | ディスク再生装置 |
JP3525888B2 (ja) * | 2000-11-21 | 2004-05-10 | 船井電機株式会社 | カルーセル型チェンジャ |
EP1217621A1 (en) * | 2000-12-20 | 2002-06-26 | THOMSON multimedia S.A. | Disk changer |
JP2002288922A (ja) * | 2001-03-23 | 2002-10-04 | Funai Electric Co Ltd | ディスクチェンジャ |
JP2002313001A (ja) * | 2001-04-13 | 2002-10-25 | Sony Corp | ディスク記録再生装置及び記録再生用ディスク |
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KR100425303B1 (ko) * | 2001-08-28 | 2004-03-30 | 삼성전자주식회사 | 광디스크 체인저 |
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- 1994-03-07 EP EP94908499A patent/EP0639832B1/en not_active Expired - Lifetime
- 1994-03-07 DE DE69424833T patent/DE69424833T2/de not_active Expired - Fee Related
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1996
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Also Published As
Publication number | Publication date |
---|---|
EP0639832A4 (en) | 1995-07-26 |
JP3531200B2 (ja) | 2004-05-24 |
DE69424833D1 (de) | 2000-07-13 |
US5742571A (en) | 1998-04-21 |
JPH06314459A (ja) | 1994-11-08 |
EP0639832A1 (en) | 1995-02-22 |
EP0639832B1 (en) | 2000-06-07 |
DE69424833T2 (de) | 2000-12-21 |
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