US20060294531A1 - Disc type recording/reproduction device - Google Patents
Disc type recording/reproduction device Download PDFInfo
- Publication number
- US20060294531A1 US20060294531A1 US11/510,759 US51075906A US2006294531A1 US 20060294531 A1 US20060294531 A1 US 20060294531A1 US 51075906 A US51075906 A US 51075906A US 2006294531 A1 US2006294531 A1 US 2006294531A1
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- Prior art keywords
- tray
- disk
- recording
- drive section
- section
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- Abandoned
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- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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Images
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
- G11B17/02—Details
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
- G11B17/05—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs not contained within cartridges
- G11B17/053—Indirect insertion, i.e. with external loading means
- G11B17/056—Indirect insertion, i.e. with external loading means with sliding loading means
-
- 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
- G11B17/02—Details
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
-
- 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
- G11B17/02—Details
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
- G11B17/05—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs not contained within cartridges
- G11B17/053—Indirect insertion, i.e. with external loading means
- G11B17/056—Indirect insertion, i.e. with external loading means with sliding loading means
- G11B17/0565—Indirect insertion, i.e. with external loading means with sliding loading means adapted for discs of different sizes
Definitions
- the present invention relates to a disk recording-reproducing apparatus and more particularly to a disk recording-reproducing apparatus that uses a pickup to perform recording and/or reproducing by rotating a disk-shaped recording medium.
- disk-shaped recording media such as a CD (compact disk), a DVD and an optical disk for recording and/or reproducing music and videos. Further, such disk-shaped recording media are used as storage devices for information processing apparatuses such as computers.
- the disk-shaped recording medium is mounted on a tray. Then, the tray moves from an ejecting position to a recording-reproducing position. With this state, a turntable rises from the bottom and floats the disk-shaped recording medium to rotatively drive it. Then, an optical pickup moves in the radial direction of the disk-shaped recording medium for recording or reproduction.
- the disk recording-reproducing apparatus requires the tray for moving the recording medium comprising an optical disk between the ejecting position and the recording-reproducing position.
- a drive means is used to move the tray between
- a drive section for moving the tray is positioned to the rear of the chassis where the tray is pushed into the chassis farthest from the front, moving the tray to the ejecting position disengages the drive section from the tray. Accordingly, the tray drive section needs to be provided to the front of the chassis and on the ejecting position side.
- the disk recording-reproducing apparatus necessitates arranging the optical pickup below the tray. If the optical pickup is arranged to the front of the turntable and on the ejecting position side, the drive section and the optical pickup must be arranged to the front of the chassis.
- the apparatus may be configured to provide two or more types of optical pickups and inevitably arrange the optical pickups to the front of the turntable. As a disadvantageous effect, the entire apparatus will have a large depth due to the drive section and the optical pickup on the front of the turntable.
- the turntable and the optical pickup need to be raised so as to approach the disk-shaped recording medium.
- the turntable and the optical pickup are provided as the same base unit.
- a vertical drive means is used for vertically operating the turntable and the optical pickup. Accordingly, this configuration requires drive sections each for driving the dray and for vertically operating the base unit, increasing the number of drive sections.
- the present invention has been made in consideration of the foregoing. It is therefore an object of the present invention to provide a disk recording-reproducing apparatus which prevents a depth from increasing due to provision of a drive section for driving a tray and prevents the number of drive sections from increasing due to provision of a drive section for vertically operating a base unit.
- the present invention relates to a disk recording-reproducing apparatus that rotates a disk-shaped recording medium and uses a pickup to record and/or reproduce data from the recording medium, the apparatus comprising:
- a drive section which is provided on said tray to self-propel said tray between said recording-reproducing position and said ejecting position.
- An output end of the drive section may comprise a pinion which, in a chassis, rotates by engaging with a rack arranged along a transport direction of the tray for self-propelling.
- a motor of the drive section may be supplied with power from a fixed side via a flexible printed circuit board subject to U-shaped bending.
- the tray may be provided with a retractable guide mechanism that supports the flexible printed circuit board from underneath.
- the present invention relates to a disk recording-reproducing apparatus which rotates a disk-shaped recording medium and uses a pickup for recording and/or reproducing operations, said apparatus comprising:
- a base unit having the pickup and a turntable to rotate the disk-shaped recording medium
- a drive section which is provided on the tray to self-propel the tray between the recording-reproducing position and the ejecting position
- a lock means may lock the chucking slider while the tray is moving, and may lock the tray and may unlock the chucking slider when the tray moves to the recording-reproducing position.
- the lock means may comprise a lever. A hook thereof may engage with a recessed section of the chucking slider to lock the chucking slider.
- a lock pin of the lock lever may enter an L-shaped groove of the tray to lock the tray. The hook of the lock lever may touch a cam surface of the chucking slider so that the lock lever may lock and hold the tray.
- a drive section on the tray may comprise a motor and a gear train.
- the gear train may be capable of changing gear ratios.
- a gear ratio may be changeable in accordance with movements of the tray and the chucking slider.
- the drive section may have a changeover member. Moving the tray to a recording-reproducing position may allow the changeover member to touch a fixed side. Then a changeover operation may be performed to change a gear ratio.
- an emergency ejection member which can be manually operated from the outside. Operating the ejection member may allow the chucking slider to lower the base unit. The tray may be pushed to an ejecting position side at the last stroke in movement of the chucking slider according to the emergency ejection member.
- the emergency ejection member may be attached to an eternal chassis via a dust-proof structure having a spring and may be driven to move in an axis line direction against the spring.
- the present invention relates to a disk recording-reproducing apparatus which rotates a disk-shaped recording medium and uses a pickup for recording and/or reproducing operations, said apparatus comprising:
- a detection means for detecting a type of a disk-shaped recording medium placed on the tray a detection means for detecting a type of a disk-shaped recording medium placed on the tray
- a detection result of the detection means changes an output or speed of the transport means.
- the detection means may detect a distinction between cartridge type and bare disk type disk-shaped recording media.
- the drive section is mounted on the rear end of the disk tray.
- the rack gear provided in the external chassis engages with the pinion constituting an output end of the above-mentioned drive section to move the tray in a self-propelled manner.
- the DVD optical pickup and the DVR optical pickup are provided before and after the turntable.
- the drive section is mounted on the tray to eliminate a space for installing the tray drive section.
- the rack gear on the external chassis is attached to the chucking slider that is slidably mounted on the bottom of the chassis.
- the lock lever prevents the chucking slider from sliding.
- the lock lever locks the tray when the tray moves to the recording-reproducing position to complete loading of a disk-shaped recording medium.
- the chucking slider having the rack gear is unlocked to allow the tray drive section equipped with a motor to reversely slide the chucking slider. This makes it possible to move up and down the base unit mounted with the optical pickups and the turntable. That is to say, the tray-mounted single drive section not only drives the tray, but also moves the base unit up and down.
- An L-shaped groove is provided on the bottom surface of the tray at its rear end.
- the lock lever's lock pin is introduced into the innermost part of the L-shaped groove. After the chucking slider is unlocked, the lock lever's hook is restricted by the cam surface on the moved chucking slider. This makes the tray to be locked by the lock lever's lock pin introduced into the innermost part of the L-shaped groove.
- the integrated tray drive section is mounted on the tray at its rear. This structure minimizes the disk recording-reproducing apparatus. Since the lock lever is used to change restrictions on the chucking slider and the tray, the tray drive section having the single motor can drive the tray and move the base unit up and down. It is possible to provide the simplified structure, decrease the number of parts, and save costs.
- Another aspect of the present invention relates to the emergency ejection mechanism that allows a disk-shaped recording medium to be ejected when the motor for the tray drive section does not rotate in the disk recording-reproducing apparatus using disk-shaped recording media.
- An aperture is formed in the bottom of the external chassis.
- An emergency ejecting pinion is provided inside the aperture.
- the tray can be pulled out manually by inserting a screwdriver.
- a spring is used to seat the emergency ejecting pinion on the bottom of the chassis. When a screwdriver is inserted, the pinion can move in the axis line direction to rotate. In a normal state, the bottom end of the pinion is seated to prevent dust from entering.
- a recording medium can be ejected by manually operating the emergency ejecting pinion even if the motor of the tray drive section does not rotate or the drive section fails. Furthermore, the spring applies a force to the emergency ejecting pinion. Accordingly, the emergency ejecting pinion, before pressed, is seated on the mounting section of the external chassis. An opening for inserting the screwdriver is closed to provide a dust-proof effect.
- the drive section for driving a tray that moves a disk-shaped recording medium between the ejecting position and the recording-reproducing position.
- the drive section is mounted on the tray itself.
- a flexible printed circuit board is used to supply power to the drive section motor.
- the flexible printed circuit board bends in a U-shaped manner. Since the tray is long and necessitates a long transport distance, the flexible printed circuit board bending in a U-shaped manner becomes long accordingly. This causes a possibility of contact between the slacked flexible printed circuit board and other parts.
- a guide for the flexible printed circuit board is structured to be retractable in accordance with the tray movement.
- the flexible printed circuit board guide is slidably attached to the guide rail.
- the flexible printed circuit board guide extends to support the flexible printed circuit board from underneath.
- the flexible printed circuit board guide is put under the bottom surface of the tray. That is to say, the flexible printed circuit board guide is attached under the tray and extends and retracts in accordance with the tray movement.
- a bearer of the guide rail supports the flexible printed circuit board guide.
- the flexible printed circuit board guide is automatically assembled when its nail crosses over the guide rail's cross bar. This improves assemblability of the flexible printed circuit board guide.
- This configuration makes it possible to effectively support the flexible printed circuit board in a limited space by providing the flexible printed circuit board guide under the tray. Since the helical extension spring is used to slide the flexible printed circuit board guide, the guide can be structured to extend when supporting the flexible printed circuit board and can be compactly retracted otherwise.
- the flexible printed circuit board guide is inserted into the guide rail from one end thereof.
- the flexible printed circuit board guide is prevented from being disengaged when its nail crosses over the cross bar. This structure can facilitate the insertion and assembly and improve the assembly efficiency.
- FIG. 1 is a perspective view showing an overall configuration of a disk recording-reproducing apparatus
- FIG. 2 is a perspective view of the disk recording-reproducing apparatus with its tray pulled out;
- FIG. 3 is a perspective view of an external chassis with its upper part opened
- FIG. 4 is a perspective view of a chucking slider
- FIG. 5 is a plan view of the external chassis with a base unit installed
- FIG. 6 is a perspective view of the base unit
- FIG. 7 is a plan view of the base unit with a DVR cartridge mounted
- FIG. 8 is a side view of the base unit with the DVR cartridge mounted
- FIG. 9 is a perspective view of the base unit with the DVR cartridge mounted
- FIG. 10 is a plan view of the base unit mounted with a bare disk
- FIG. 11 is a side view of the base unit mounted with a bare disk
- FIG. 12 is a perspective view of the base unit mounted with a bare disk
- FIG. 13 is a bottom plan view of a tray drive section
- FIG. 14 is a bottom plan view of the tray drive section after changeover
- FIG. 15 is a bottom plan view showing a changeover operation of a changeover plate
- FIG. 16 is an enlarged plan view showing an oscillating lever and an oscillating gear
- FIG. 17 is an enlarged front view showing the oscillating lever and the oscillating gear
- FIG. 18 is a plan view of a lock lever
- FIG. 19 is a plan view showing how the lock lever locks the chucking slider
- FIG. 20 is a plan view showing how the lock lever locks the tray
- FIG. 21 is a plan view showing how a cam surface restricts the lock lever
- FIG. 22 is a plan view showing an arrangement of the chucking slider and the retracting lever
- FIG. 23 is a plan view showing how the retracting lever retracts the tray
- FIGS. 24A and 24B are partially vertical sectional views of the apparatus when the tray is retracting
- FIGS. 25A and 25B are partially vertical sectional views of the apparatus when the tray has completely retracted
- FIGS. 26A and 26B are partially vertical sectional views of the apparatus when the base unit is raised
- FIG. 27 is a plan view showing that the tray is ejected
- FIG. 28 is a plan view of the apparatus with the tray retracted to a recording-reproducing position
- FIG. 29 is a bottom plan view of the external chassis
- FIG. 30 is a perspective view of an emergency ejecting pinion
- FIG. 31 is a perspective view with the emergency ejecting pinion raised
- FIG. 32 is a vertical sectional view showing installation of the emergency ejecting pinion
- FIG. 33 is a vertical sectional view with the emergency ejecting pinion raised
- FIG. 34 is a partially perspective view showing a detection mechanism for a disk-shaped recording medium
- FIG. 35 is a partially enlarged and exploded perspective view of the detection mechanism for the disk-shaped recording medium
- FIG. 36 is a partially enlarged plan view showing a detection operation for a bare disk
- FIG. 37 is a partially enlarged plan view showing a detection operation for a DVR cartridge
- FIG. 38 is a block diagram showing a drive circuit of a motor for the tray drive section
- FIG. 39 is a flowchart showing an operation of changing a motor voltage
- FIG. 40 is an exploded perspective view of a guide mechanism supporting a flexible printed circuit board
- FIGS. 41A and 41B are perspective views showing the guide mechanism assembled in an expanded position
- FIGS. 42A and 42B are perspective views showing the guide mechanism assembled in a retracted position
- FIG. 43 is a perspective bottom view of the tray mounted with the printed circuit board guide mechanism
- FIGS. 44A and 44B are partial perspective views of the printed circuit board guide mechanism with the tray ejected and retracted.
- FIGS. 45A through 45C are partially enlarged side views of the printed circuit board guide mechanism with the tray ejected and retracted.
- FIGS. 1 and 2 show an overall configuration of the disk recording-reproducing apparatus according to an embodiment of the present invention.
- the disk recording-reproducing apparatus has an external chassis 10 forming a flat, rectangular solid.
- a front panel 11 closes a front aperture of the external chassis 10 .
- a horizontal aperture 12 is formed in the front panel 11 .
- the horizontal aperture 12 allows a tray 13 to be freely inserted and ejected.
- a step section 18 is provided on each of both inner sides of the external chassis 10 The both step sections 18 support the tray 13 so that it can slide.
- a recessed section 14 is formed approximately at the center of the tray 13 .
- the recessed section 14 holds and supports a disk-shaped recording medium.
- An aperture 15 is formed across the recessed section 14 in a tray movement direction.
- the opening 15 has a U-shaped cut 16 farthest from the front and a semicircular cut 17 nearest to the front. The optical pickups can enter these cuts 16 and 17 .
- a chucking slider 20 is mounted inside the external chassis 10 .
- the chucking slider 20 comprises left and right wall sections and a center connecting section.
- the connecting section has long holes 21 that extend in the slide direction.
- the long hole 21 engages with a screw 22 fixed to the external chassis, supporting the chucking slider 20 capable of sliding in the long direction of the tray 13 .
- the chucking slider 20 contains a pair of cam grooves 23 at the front and the rear on each of both wall sections.
- a rack 24 is formed on a side of one of wall sections for moving the tray 13 in a self-propelled manner.
- An emergency ejecting rack 25 is provided below the rack 24 at its front end. If the drive section for the tray 13 fails and cannot eject the tray 13 , the rack 25 engages with the emergency ejecting pinion (to be described) to eject the tray 13 .
- the base unit 30 is provided above the chucking slider 20 as shown in FIGS. 2 and 5 .
- the base unit 30 is a flat container. Its both sides (left and right) are each provided with two pins 31 . These pins 31 fit into the cam grooves 23 in both wall sections of the chucking slider 20 . A tip of the pin 31 engages with a vertical slit 32 provided inside each of the both wall sections of the external chassis 10 . According to this structure, the base unit 30 is supported so that it can freely move in the height direction.
- the cam groove 23 of the chucking slider 20 limits the height of the base unit 30 .
- the DVD optical pickup 33 is guided by a guide lock 35 and a feed screw 36 .
- a stepping motor 37 is provided at the end of the feed screw 36 . When the stepping motor 37 is driven, the feed screw 36 allows the DVD optical pickup 33 to move in the radial direction of a disk-shaped recording medium.
- a pair of guide locks 38 and 39 support the DVR optical pickup 34 .
- a stepping motor 41 drives a feed screw 40 to move the DVR optical pickup 34 in the radial direction of the disk-shaped recording medium.
- the optical pickups 33 and 34 are respectively located at the front and rear of the turntable 43 mounted on the base unit 30 via a bracket 42 . That is to say, the DVD optical pickup 33 is located toward the ejecting direction with reference to the turntable 43 .
- the DVR optical pickup 34 is located toward the inserting direction with reference to the turntable 43 .
- the base unit 30 is provided with a pair of support pins 44 and support arms 45 on both sides.
- FIGS. 7 through 9 show that the tray 13 pulls the DVR cartridge 122 into the chassis by means of the support pins 44 and the support arms 45 .
- the base unit 30 rises and floats the cartridge 122 from the tray 13 for supporting.
- the bare disk 121 is not supported by the support pins 44 and the support arms 45 .
- the turntable 43 supports the bare disk 121 at its center.
- a motor 48 is mounted on a chassis 47 constituting the drive section 46 .
- a worm gear 49 is fixed to an output shaft of the motor 48 .
- the worm gear 49 engages with a worm wheel gear 50 .
- the worm wheel gear 50 has a concentric gear which engages with a gear 51 .
- a gear 52 concentric with the gear 51 engages with a gear 53 .
- the gear 53 engages with a gear 54 that can oscillate.
- the gear 54 engages with a gear 55 to which a pinion 56 is fixed concentrically.
- the gear 54 When the gear 54 oscillates, it engages with another gear 57 .
- the gear 57 has a concentric gear which engages with a gear 58 .
- the chassis 47 is provided with a changeover plate 62 .
- a long hole 63 engages with a pin 64 planted on the chassis 47 .
- the changeover plate 62 is supported so that it can slide horizontally in FIG. 15 .
- a spring 65 applies a sliding force to the changeover plate 62 toward the right in FIG. 15 .
- the right end of the changeover plate 62 is bent to form a contact section 66 .
- An oscillating lever 67 in FIG. 16 is rotatively supported on the chassis 47 around a pivot 68 .
- a forcing shaft 69 is planted on the oscillating lever 67 and engages in a coupling hole 70 in the changeover plate 62 .
- the coupling hole 70 comprises limiting sections 71 and 72 at its both ends. A middle of the limiting sections 71 and 72 forms a wide oscillating section 73 .
- the gears 54 and 55 engage with each other as shown in FIG. 13 .
- the gears 54 and 57 engage with each other as shown in FIG. 14 .
- the gear 54 has a helical compression spring 74 around its support shaft. The helical compression spring 74 applies a rotative load to the gear 54 .
- the gear 53 rotates, the gear 54 oscillates in the rotating direction.
- a support shaft 79 is planted at the bottom rear of the external chassis 10 .
- the support shaft 79 rotatively supports the lock lever 78 .
- a helical spring 80 rotatively moves the lock lever 78 counterclockwise around the support shaft 79 .
- the lock lever 78 is provided with a lock pin 81 for locking the tray 13 and a hook 82 for locking the chucking slider 20 .
- an L-shaped lock groove 85 is formed on the bottom surface of the tray 13 at the rear thereof.
- the L-shaped lock groove 85 is bent at its end to form a lock section 86 (see FIG. 43 ).
- a recessed section 87 is formed at the rear end of the chucking slider 20 on the right side thereof.
- the end of the recessed section 87 forms a flange 88 .
- a cam surface 89 is formed outside the flange 88 of the chucking slider 20 .
- the support shaft 79 concentrically and rotatably supports a retracting lever 90 .
- One end of the retracting lever 90 forms a pressed section 91 that touches a step section 92 at the end of the chucking slider 20 as shown in FIGS. 22 and 23 .
- the step section 92 of the chucking slider 20 presses to rotatively move the retracting lever 90 from the state in FIG. 22 to the state in FIG. 23 .
- the retracting lever 90 presses a contact section 93 at the rear of the tray 13 to press the tray 13 for ejection. This operation is used for ejection by means of the emergency ejecting pinion.
- FIGS. 29 through 33 the following describes the structure for ejecting the tray 13 in an emergency, e.g., when the motor 48 of the drive section 46 for the tray stops rotating or when the drive section 46 fails.
- a circular hole 99 is formed on a bottom surface 98 of the external chassis 10 .
- an emergency ejecting pinion 100 is provided at the front end of the external chassis 10 and on the side of the horizontal aperture 12 so that the emergency ejecting pinion 100 is located inside the circular hole 99 .
- a bracket 101 is attached via a frame on a bottom plate of the external chassis 10 .
- a support shaft 102 supported by the bracket 101 rotatably supports the emergency ejecting pinion 100 as shown in FIG. 32 .
- the support shaft 102 is inserted into a helical compression spring 103 that engages with a step section 104 inside the pinion 100 .
- a recessed section 105 is formed at the bottom of the pinion 100 and accepts a sleeve 106 .
- the sleeve 106 engages with the recessed section 105 in the pinion 100 in order to ensure a dust-proof structure when the emergency ejecting pinion 100 is moved upward to be activated along the axis line as shown in FIG. 33 .
- the pinion 100 engages with the emergency ejecting rack 25 so as to move the chucking slider 20 .
- a detection plate 110 is retractably provided against a vertical wall of the recessed section 14 in the tray 13 .
- the detection plate 110 is slidably supported by a slide guide 111 outside the recessed section 14 in the tray 13 and is pressed toward the projection direction by a helical spring 112 . That is to say, one end of the helical spring 112 engages with a cut 113 of the detection plate 110 .
- a circuit board 114 is provided on the side of the slide guide 111 on which a detection switch 115 is provided.
- the detection plate 110 presses an actuator 116 of the detection switch 115 to activate a detection operation.
- the detection plate 110 performs no detection operation when the bare disk 121 is mounted on the tray 13 as shown in FIG. 36 .
- a DVR cartridge 122 is mounted as shown in FIG. 37 , a vertical wall section of the external chassis of the cartridge 122 presses the detection plate 110 .
- the detection plate 110 slides to press the actuator 116 of the detection switch 115 for a changeover operation.
- the detection plate 110 activates a changeover operation of the detection switch 115 that is connected to a microcomputer 117 as shown in FIG. 38 .
- the microcomputer 117 controls a motor driver 118 that is a drive circuit for the motor 48 .
- FIG. 38 shows a drive system.
- FIG. 39 shows how the drive system is controlled.
- the drive system is configured to change a voltage for driving the motor 48 of the drive section 46 depending on whether a disk-shaped recording medium is the bare disk 121 or the DVR cartridge 122 .
- the following describes the support structure of the flexible printed circuit board for supplying power to the motor 48 of the drive section 46 for the tray 13 .
- the tray 13 has the drive section 46 thereon and moves between the recording-reproducing position and the ejecting position in a self-propelled manner.
- a flexible printed circuit board 135 supplies power from a power supply circuit board 136 to the motor 48 of the drive section 46 for such self-propelled operation (see FIGS. 44A and 44B and 45 A through 45 C).
- the tray 13 moves to the ejecting position or is pulled from the external chassis 10 as shown in FIG. 2 .
- the power supply flexible printed circuit board 135 for driving the motor 48 greatly hangs down in the middle of the long direction thereof.
- a guide mechanism comprising a flexible printed circuit board guide 125 and a guide rail 126 .
- the flexible printed circuit board guide 125 is made of a long, narrow synthetic resin molding and is slidably supported by bearers 127 provided on both sides of the guide rail 126 .
- the flexible printed circuit board guide 125 is provided with a nail 128 .
- a helical extension spring 130 is provided between the flexible printed circuit board guide 125 and the guide rail 126 as shown in FIGS. 41A, 41B , 42 A, and 42 B.
- One end of the helical extension spring 130 is fixed to a hitching section 131 of the guide rail 126 .
- the other end thereof is fixed to a hitching section 132 of the flexible printed circuit board guide 125 .
- the flexible printed circuit board guide 125 is slidably supported in the guide rail 126 .
- the helical extension spring 130 applies force to the flexible printed circuit board guide 125 in an extending direction away from the guide rail 126 .
- the guide mechanism for the flexible printed circuit board 135 is located in the inner part of the tray 13 and is mounted and fixed to the bottom surface thereof.
- the flexible printed circuit board guide 125 extends to the rear to support the flexible printed circuit board 135 that is to hang down (see FIG. 45B ).
- An output from the drive section 46 of the tray 13 is used to move the chucking slider 20 in the direction of ejecting the tray 13 , i.e., in the forward direction.
- the cam groove 23 of the chucking slider 20 is used to raise the base unit 30 .
- the turntable 43 on the base unit 30 rises to rotatively drive the bare disk or a disk in the cartridge.
- the stepping motor 37 and the feed screw 36 in FIG. 5 are used to move the optical pickup 33 for DVD in the radial direction of the optical disk for recording and/or reproducing operations.
- the stepping motor 41 and the feed screw 40 are used to move the optical pickup 34 for DVR in the radial direction of the optical disk for recording or reproducing operations.
- the base unit 30 rises to approach the tray 13 .
- the support pin 44 and the support arm 45 of the rising base unit 30 support the cartridge 122 as shown in FIGS. 7 through 9 .
- top ends of the support pin 44 and the support arm 45 extrude through the opening formed in the recessed section 14 of the tray 13 .
- the cartridge 122 is supported above the recessed section 14 of the tray 13 .
- the bare disk 121 is supported at its center by the turntable 43 provided on the rising base unit 30 and is rotatively driven above the recessed section 14 of the tray 13 .
- the drive means that uses the common turntable 43 to move the optical pickups 33 and 34 for different formats such as DVD and DVR in the radial direction of disks. While one optical pickup accesses a recording medium compliant with the corresponding format, at least an objective lens, i.e., a head section of the other optical pickup escapes out of a projected area of the recording medium. This makes it possible to avoid conflicts among a plurality of types of optical pickups 33 and 34 and corresponding recording media. It becomes possible to decrease the number of parts, eliminate unnecessary spaces and mechanisms along the axis line of a disk, and provide a recording-reproducing apparatus with a reduced height.
- the drive section 46 of the tray 13 After completion of a specified recording or reproducing operation, the drive section 46 of the tray 13 lowers the base unit 30 . An output of the drive section 46 allows the tray 13 to be self-propelled to eject as shown in FIG. 2 . Then, the bare disk or the cartridge can be removed from the recessed section 14 of the tray 13 .
- the drive section 46 provided on the tray 13 has the changeover plate 62 as shown in FIGS. 13 and 15 .
- the spring 65 applies a sliding force to the changeover plate 62 toward the right. That is to say, the contact section 66 comprising the bent portion extrudes. Accordingly, as shown in FIG. 15 , the limiting section 71 of the coupling hole 70 restrains the forcing shaft 69 of the oscillating lever 67 . In this case, the gears 54 and 55 engage with each other.
- the motor 48 and the drive section 46 are provided on the tray 13 .
- the drive section 46 enables self-propelled operations of the tray 13 .
- This structure eliminates the need for providing the tray 13 with a drive section at the side of the external chassis 10 or the base unit 30 .
- the recording-reproducing apparatus according to the embodiment, in particular, arranges the optical pickup 33 for DVD to the front of the turntable 43 and the optical pickup 34 for DVR to the rear thereof as shown in FIG. 5 . If the drive section for the tray 13 is further arranged to the front of the optical pickup 33 for DVD, the apparatus will have a very large depth, i.e., the dimension in the lateral direction in FIG. 5 . If the drive section is arranged on the tray 13 , by contrast, the drive section need not be arranged on the base unit 30 or the external chassis 10 . Accordingly, it is possible to decrease the dimension along the movement direction of the tray 13 and miniaturize the entire apparatus.
- An output from the drive section 46 provided on the tray 13 enables self-propelled operations of the tray 13 .
- the tray 13 moves from the ejecting position to the recording-reproducing position.
- the tray 13 changes the state in FIG. 2 to that in FIG. 1 to retract into the external chassis 10 .
- the lock pin 81 of the lock lever 78 which is provided at the bottom rear of the exterior chassis 10 , enters the L-shaped lock groove 85 provided at the rear of the tray 13 , wherein the lock pin 81 is provided at the bottom rear of the tray 13 .
- the contact section 66 of the changeover plate 62 for the drive section 46 touches the rear panel of the external chassis 10 as shown in FIGS. 1 and 28 .
- the contact section 66 is then pressed to move the changeover plate 62 to the left against the spring 65 as shown in FIG. 14 .
- the forcing shaft 69 disengages from the limiting section 71 for the coupling hole 70 of the changeover plate 62 .
- the forcing shaft 69 becomes free in the oscillating section 73 , causing the oscillating lever 67 to oscillate.
- the changeover plate 62 further moves to the left, the forcing shaft 69 is introduced into another limiting section 72 and is restrained here.
- the oscillating lever 67 is then switched.
- the gear 54 on the oscillating lever 67 disengages from the gear 55 and engages with the gear 57 as shown in FIG. 7 .
- the drive section 46 performs the changeover operation in this manner.
- the pinion 56 of the drive section 46 generates high torque.
- This high drive torque presses the rack 24 of the chucking slider 20 with the unlocked hook 82 of the lock lever 78 toward the front, i.e., in the same direction as the ejection of the tray 13 .
- the hook 82 of the lock lever 78 runs onto the cam surface 89 of the chucking slider 20 , restraining the rotation of the lock lever 78 .
- the drive section 46 on the tray 13 retracts the tray 13 in a self-propelled manner.
- the tray 13 retracts to the recording-reproducing position as shown in FIGS. 24A and 25B .
- the motor 48 continues to drive the drive section 46 for the tray 13
- the drive section 46 is changed due to the movement of the changeover plate 62 .
- the pinion 56 constituting an output end of the drive section 46 feeds the rack 24 of the chucking slider 20 to move the chucking slider 20 to the left as shown in FIGS. 26A and 26B .
- the chucking slider 20 has the cam grooves 23 on both sides.
- the pin 31 of the base unit 30 engages in each of the cam grooves 23 .
- the vertical slits 32 provided on both sides of the external chassis 10 restrict horizontal movement of the pins 31 at their tips.
- the optical pickup 33 for DVD and the optical pickup 34 for DVR mounted thereon respectively enter the semicircular cut 17 and the U-shaped cut 16 of the aperture 15 in the tray 13 . Further, the turntable 43 on the base unit 30 enters the aperture 15 to support an optical disk transported by the tray 13 . Accordingly, the optical disk rotates above the tray 13 , as if floating there above.
- the optical pickup 33 for DVD or the optical pickup 34 for DVR accesses the optical disk for recording or reproducing operations.
- FIG. 27 shows that the tray 13 is ejected.
- a bare disk or a DVR cartridge is mounted on the recessed section 14 in the tray 13 .
- the tray 13 retracts with this state, the tray 13 moves to the recording-reproducing position as shown in FIG. 28 .
- FIGS. 26A and 26B show the relationship between the base unit 30 and the tray 13 during a recording or reproducing operation on the bare disk or the DVD cartridge.
- the motor 48 of the drive section 46 on the tray 13 is driven reversely, i.e., in the direction of ejecting the tray 13 .
- the contact section 66 of the changeover plate 62 for the drive section 46 touches the rear panel of the external chassis 10 . Therefore, the gears in the drive section 46 engage with each other as shown in FIG. 14 .
- the pinion 56 moves the rack 24 to the rear with a high drive torque, i.e., to the right in FIGS. 26A and 26B .
- the chucking slider 20 accordingly moves to the right together with the cam grooves 23 provided thereon that catch the pins 31 on both sides of the base unit 30 .
- the pins 31 on the base unit 30 are lowered along the vertical slits 32 . Consequently, the pair of optical pickups 33 and 34 on the base unit 30 are lowered from the cuts 17 and 16 at both sides of the aperture 15 in the tray 13 , respectively.
- the turntable 43 lowers to seat the bare disk or the cartridge on the recessed section 14 of the tray 13 .
- the hook 82 of the lock lever 78 in FIG. 21 slides on the cam surface 89 to become the state in FIG. 20 . Then, the hook 82 rotates counterclockwise around the support shaft 79 due to a force from the helical spring 80 and falls into the recessed section 87 as shown in FIG. 19 .
- the motor 48 of the drive section 46 of the tray 13 continues to rotate thereafter.
- the pinion 56 of the drive section 46 rolls on the rack 24 of the locked chucking slider 20 to move the tray 13 to the ejecting position.
- the changeover plate 62 of the drive section 46 leaves the rear panel of the external chassis 10 . Accordingly, the changeover plate 62 moves to the right due to the spring 65 .
- the drive section 46 changes the state in FIG. 14 to that in FIG. 13 .
- the ejection operation takes place at a relatively high speed.
- the disk recording-reproducing apparatus has two optical pickups corresponding to different disk formats at the front and the rear of the turntable 43 constituting a disk rotating section.
- the apparatus has the structure capable of loading operations compatible with DVR-only cartridges and DVD/CD bare disks.
- the DVR optical pickup 34 (laser wavelength of 405 nm) for reading and writing data on DVR cartridges and the DVD optical pickup 33 (laser wavelength of 650/780 nm, with a 2-wavelength lens) for recording and reproducing data on DVD/CD disks.
- These optical pickups are arranged before and after the base unit 30 .
- the chucking slider 20 is slidably arranged on the bottom plate of the external chassis 10 . There is provided a pair of cam grooves 23 for vertically moving up and down the chucking slider 20 through the two protruding pins 31 on each of both sides of the base unit 30 . Further, the chucking slider 20 has the rack 24 that engages with the pinion 56 of the drive section 46 for the tray 13 .
- the tray 13 has the recessed section 14 and the aperture 15 .
- the recessed section 14 is capable of mounting a DVR cartridge or a DVD/CD bare disk.
- the aperture 15 continuously forms the cuts 17 and 16 for accepting two optical pickups 33 and 34 arranged before and after the turntable 43 .
- the tray 13 has the pinion 56 that decelerates rotation of the motor 48 by means of a set of gears and transmits power to the rack 24 .
- the drive section 46 is mounted on the tray 13 at its rear.
- the hook lever 78 provided on the bottom plate of the external chassis 10 comprises the hook 82 for locking the chucking slider 20 and the lock pin 81 entering the lock section 86 of the lock groove 85 for the tray 13 .
- the support shaft 79 provided with the lock lever 78 is planted on the external chassis that constitutes a guide member for sliding the chucking slider 20 and the tray 13 .
- the cam groove 23 of the chucking slider 20 allows the base unit 30 to lower as shown in FIGS. 24A and 24B .
- the tray 13 ejects and retracts by means of rotation of the motor 48 in the drive section 46 for the tray 13 .
- the lock pin 81 of the lock lever 78 enters the L-shaped lock groove 85 in the tray 13 as shown in FIG. 19 .
- the lock pin 81 of the lock lever 78 is introduced into the lock section 86 of the L-shaped lock groove 85 .
- the hook 82 of the lock lever 78 disengages from the recessed section 87 of the chucking slider 20 to unlock the chucking slider 20 .
- the tray 13 completely retracts to allow the contact section 66 of the changeover plate 62 for the drive section 46 to touch the external chassis 10 . Then, the drive section 46 changes the state in FIG. 13 to that in FIG. 14 . In addition, rotation of the motor 48 for the drive section 46 becomes a driving force for the chucking slider 20 . At this time, the hook 82 of the lock lever 78 slides on the cam surface 89 of the chucking slider 20 that slides as shown in FIG. 21 . Consequently, the lock lever 78 cannot rotate counterclockwise even if it is applied with a force from the helical spring 80 . The tray 13 is fixed to that position with the lock pin 81 of the lock lever 78 inserted into the lock section 86 . The driving force of the drive section 46 reversely presses the chucking slider 20 in the ejection direction to elevate the base unit 30 .
- this configuration can miniaturize the drive apparatus for the tray 13 by providing the tray drive section 46 on the tray 13 at its rear end in the apparatus that arranges a pair of optical pickups 33 and 34 before and after the turntable 43 . Since the lock lever 78 is used to lock and unlock the chucking slider 20 and the tray 13 , the motor 48 of the drive section 46 provided on the tray 13 can exclusively move the tray 13 and elevate the base unit 30 . This makes it possible to decrease the number of drive sections and parts and save the costs.
- the following describes an emergency ejection apparatus for the tray 13 provided in the recording-reproducing apparatus.
- the tray 13 is driven by the drive section 46 mounted thereon for self-propelled operations and can reciprocate between the recording-reproducing position and the ejecting position.
- the motor 48 or the drive section 46 may not function, disabling the tray 13 from being ejected.
- the emergency ejection of the tray 13 is made available by inserting a screwdriver into the circular hole 99 on the bottom plate 98 of the external chassis 10 to rotate the emergency ejecting pinion 100 . This operation is described below.
- the emergency ejecting pinion 100 is rotatively supported by the support shaft 102 of the bracket 101 .
- the helical compression spring 103 presses the step section 104 .
- the emergency ejecting pinion 100 is pressed against the bottom plate 103 so that the recessed section 105 covers the sleeve 106 .
- the sleeve 106 communicating with the circular hole 99 is located within the recessed section 105 of the pinion 100 .
- the helical compression spring 103 presses the pinion 100 downward to provide a sealed structure, preventing dust from entering the external chassis 10 through circular hole 99 .
- the cam groove 23 of the chucking slider 20 supports the pins 31 provided on both sides of the base unit 30 that then moves down along the vertical slit 32 . Accordingly, a pair of pickups 33 and 34 and the turntable 43 on the base unit 30 disengages downward from the aperture 15 of the tray 13 .
- the hook 82 of the lock lever 78 drops into the recessed section 87 of the chucking slider 20 due to an elastic restoring force of the helical spring 80 as shown in FIG. 19 .
- the lock lever 78 rotates counterclockwise around the support shaft 79 as shown in FIG. 19 . Consequently, the lock section 86 of the lock lever 78 disengages from the lock section 86 of the L-shaped lock groove 85 on the tray 13 .
- the lock lever 78 is unlocked for the tray 13 .
- the drive section 46 functions as an adjuster to slow down the movement of the tray while it is pulled out.
- the pinion 100 for emergency ejection allows its recessed section 105 to let in the sleeve 106 provided so as to cover the circular hole 99 .
- the helical compression spring 103 is used to press the pinion 100 downward. According to this structure, the bottom end of the emergency ejecting pinion 100 tightly contacts with the bottom surface 98 of the external chassis 10 to provide a dust-proof structure. Therefore, this prevents dust from entering the external chassis 10 through the circular hole 99 .
- the disk recording-reproducing apparatus is provided with the detection plate 110 so as to face part of the vertical wall at the outside periphery of the recessed section 14 for the tray 13 .
- the detection plate 110 is used to determine a disk-shaped recording medium mounted on the recessed section 14 for the tray 13 .
- the detection plate 110 cannot detect the bare disk 121 .
- the detection plate 110 remains pushed by the helical spring 112 .
- the detection switch 115 remains unchanged.
- the side wall section at the outside periphery of the cartridge 122 pushes the detection plate 110 as shown in FIG. 37 .
- the detection plate 110 is retracted against the helical spring 112 .
- the detection plate 110 presses the actuator 116 of the detection switch 115 to change the state of the detection switch 115 .
- the detection plate 110 is used to determine media by detecting the bare disk 121 or the DVR cartridge 122 . According to this media determination, the microcomputer 117 in FIG. 38 changes a voltage applied to the motor 48 based on the flowchart in FIG. 39 . When the bare disk 121 is detected, a drive voltage for the motor 48 is set to 5 V. When the DVR cartridge 122 is detected, a drive voltage for the motor 48 is set to 7 V.
- Loads for self-propelling the tray 13 vary with weights of media placed on the tray 13 , a load for opening a shutter of the DVR cartridge 122 , and a load for a bare disk chucking mechanism (not shown). Accordingly, it becomes possible to drive the motor 48 with optimal drive voltages corresponding to these loads and stably move the tray 13 despite changes in weights of different-types of media.
- the tray 13 mounts on itself the drive section 46 and the motor 48 for self-propelled operations. Hence, it is necessary to supply power to the motor 48 of the drive section 46 from the outside.
- the power supply flexible printed circuit board 135 as shown in FIGS. 44A and 44B is used for this purpose.
- One end of the flexible printed circuit board 135 is connected to the fixed power supply circuit board 136 .
- the flexible printed circuit board 135 supplies power from the fixed power supply circuit board 136 .
- the flexible printed circuit board 135 When the tray 13 is pulled out of the horizontal aperture 12 of the front panel 11 , the flexible printed circuit board 135 largely slacks downward in the middle of an operation to pull out the tray 13 as shown in FIG. 45B .
- There is provided a support mechanism for the flexible printed circuit board 135 as shown in FIG. 45A comprising the flexible printed circuit board guide 125 and the guide rail 126 to prevent the flexible printed circuit board 135 from slacking.
- the support mechanism functions as follows.
- the helical extension spring 130 applies force for pulling out the flexible printed circuit board guide 125 from the guide rail 126 to support the flexible printed circuit board 135 , as shown in FIGS. 41A and 41B . This operation occurs when the tray 13 moves between the ejecting position and the recording-reproducing position.
- the tray 13 almost completely retracts into the chassis 10 and moves to the recording-reproducing position.
- the flexible printed circuit board guide 125 touches a plate at the rear of the external chassis 10 .
- the flexible printed circuit board guide 125 is pulled into the guide rail 126 as shown in FIGS. 42A and 42B .
- the guide mechanism comprising the flexible printed circuit board guide 125 and the guide rail 126 is maintained to almost the same height as the rear end of the tray 13 .
- This structure provides a guide member for the flexible printed circuit board 135 comprising the flexible printed circuit board guide 125 and the guide rail 126 under the tray 13 .
- This makes it possible to effectively support the power supply flexible printed circuit board 135 from underneath in a limited space. Since the helical extension spring 130 is used for sliding the flexible printed circuit board guide 125 , this guide can be extended to support the power supply flexible printed circuit board 135 or be compactly contracted otherwise.
- the guide rail 126 supports the flexible printed circuit board guide 125 with its nail 128 crossing over the cross bar 129 .
- the flexible printed circuit board guide 125 can be very easily assembled to the guide rail 126 .
- the present invention is not limited thereto. Furthermore, the present invention may be embodied in various modifications without departing from the spirit and scope of the invention. While the embodiment concerns the apparatus configured to have an optical disk and an optical head apparatus comprising a pair of optical pickups 33 and 34 , the present invention is not limited to this configuration.
- the present invention can be widely applied to apparatuses comprising a combination of recording media such as a magnetic optical disk, a magnetic disk, a capacitance disk, and the like, and a head apparatus to record and/or reproduce data from the recording media.
- the present invention relates to a disk recording-reproducing apparatus that rotates a disk-shaped recording medium and uses a pickup to record and/or reproduce data from the recording medium.
- the apparatus comprises a tray to move the disk-shaped recording medium between a recording-reproducing position and an ejecting position; and a drive section that is provided on the tray to self-propel the tray between the recording-reproducing position and the ejecting position.
- the drive section is provided on the tray to self-propel the tray between the recording-reproducing position and the ejecting position. This eliminates the need to provide a drive section at the fixed side, saving the space along the tray movement direction.
- the present invention relates to a disk recording-reproducing apparatus that rotates a disk-shaped recording medium and uses a pickup to record and/or reproduce data from the recording medium.
- the apparatus comprises a base unit having a pickup and a turntable to rotate a disk-shaped recording medium; a chucking slider to move the base unit up and down; a tray to move the disk-shaped recording medium between a recording-reproducing position and an ejecting position on the base unit; and a drive section provided on the tray to self-propel the tray between the recording-reproducing position and the ejecting position.
- the drive section moves the tray to the recording-reproducing position to stop movement and then moves the chucking slider to raise the base unit.
- such a disk recording-reproducing apparatus can self-propel the tray by means of the drive section that allows the tray to self-propel between the recording-reproducing position and the ejecting position.
- the drive section on the tray slides the chucking slider to raise the base unit. That is to say, the drive section for the tray can be also used as a drive source for moving the base unit up and down.
- the present invention relates to a disk recording-reproducing apparatus that rotates a disk-shaped recording medium and uses a pickup to record and/or reproduce data from the recording medium.
- the apparatus comprises a tray to move the disk-shaped recording medium between a recording-reproducing position and an ejecting position; a transport means for moving the tray between the recording-reproducing position and the ejecting position; and a detection means for detecting a type of the disk-shaped recording medium placed on the tray.
- a detection result of the detection means changes an output or speed of the transport means.
- Such a disk recording-reproducing apparatus changes a driving force or a transport speed of the transport means in accordance with a detection result for the disk-shaped recording medium. It becomes possible to move the tray with an optimum driving force or speed in accordance with weights and applied loads for types of disk-shaped recording media.
Landscapes
- Feeding And Guiding Record Carriers (AREA)
Abstract
A disk recording-reproducing apparatus ensures a large transport distance of a tray which moves a disk-shaped recording medium between an ejecting position and a recording-reproducing position while decreasing a dimension in the transport direction. A drive section (47) is built into a tray (13) which can be extracted from and retracted into an external chassis (10) and moves a disk-shaped recording medium between the ejecting position and the recording-reproducing position. A pinion (56) comprises an output end of the drive section (47) and rolls on a rack (24) of a chucking slider (20) to self-propel the tray (13). After the tray (13) completely moves to the recording-reproducing apparatus side, an output from the drive section (47) of the tray (13) is used to move the chucking slider (20) to the ejecting direction of the tray (13). Then, a cam groove (23) provided on the chucking slider (20) is used to raise a base unit (30).
Description
- This application is a divisional of U.S. patent application Ser. No. 10/432,438 filed Sep. 5, 2003, which is the National Stage of PCT Application No. PCT/JP02/09580, filed Sep. 18, 2002.
- The present invention relates to a disk recording-reproducing apparatus and more particularly to a disk recording-reproducing apparatus that uses a pickup to perform recording and/or reproducing by rotating a disk-shaped recording medium.
- There is widely used a disk recording-reproducing apparatus that uses disk-shaped recording media such as a CD (compact disk), a DVD and an optical disk for recording and/or reproducing music and videos. Further, such disk-shaped recording media are used as storage devices for information processing apparatuses such as computers.
- In this case, the disk-shaped recording medium is mounted on a tray. Then, the tray moves from an ejecting position to a recording-reproducing position. With this state, a turntable rises from the bottom and floats the disk-shaped recording medium to rotatively drive it. Then, an optical pickup moves in the radial direction of the disk-shaped recording medium for recording or reproduction.
- The disk recording-reproducing apparatus requires the tray for moving the recording medium comprising an optical disk between the ejecting position and the recording-reproducing position. A drive means is used to move the tray between
- If a drive section for moving the tray is positioned to the rear of the chassis where the tray is pushed into the chassis farthest from the front, moving the tray to the ejecting position disengages the drive section from the tray. Accordingly, the tray drive section needs to be provided to the front of the chassis and on the ejecting position side.
- On the other hand, the disk recording-reproducing apparatus necessitates arranging the optical pickup below the tray. If the optical pickup is arranged to the front of the turntable and on the ejecting position side, the drive section and the optical pickup must be arranged to the front of the chassis. The apparatus may be configured to provide two or more types of optical pickups and inevitably arrange the optical pickups to the front of the turntable. As a disadvantageous effect, the entire apparatus will have a large depth due to the drive section and the optical pickup on the front of the turntable.
- As mentioned above, after the tray mounted with the disk-shaped recording medium is moved from the ejecting position to the reproduction position, the turntable and the optical pickup need to be raised so as to approach the disk-shaped recording medium. Conventionally, the turntable and the optical pickup are provided as the same base unit. A vertical drive means is used for vertically operating the turntable and the optical pickup. Accordingly, this configuration requires drive sections each for driving the dray and for vertically operating the base unit, increasing the number of drive sections.
- The present invention has been made in consideration of the foregoing. It is therefore an object of the present invention to provide a disk recording-reproducing apparatus which prevents a depth from increasing due to provision of a drive section for driving a tray and prevents the number of drive sections from increasing due to provision of a drive section for vertically operating a base unit.
- The present invention relates to a disk recording-reproducing apparatus that rotates a disk-shaped recording medium and uses a pickup to record and/or reproduce data from the recording medium, the apparatus comprising:
- a tray to move said disk-shaped recording medium between a recording-reproducing position and an ejecting position; and
- a drive section which is provided on said tray to self-propel said tray between said recording-reproducing position and said ejecting position.
- An output end of the drive section may comprise a pinion which, in a chassis, rotates by engaging with a rack arranged along a transport direction of the tray for self-propelling. A motor of the drive section may be supplied with power from a fixed side via a flexible printed circuit board subject to U-shaped bending. Further, the tray may be provided with a retractable guide mechanism that supports the flexible printed circuit board from underneath.
- Further, the present invention relates to a disk recording-reproducing apparatus which rotates a disk-shaped recording medium and uses a pickup for recording and/or reproducing operations, said apparatus comprising:
- a base unit having the pickup and a turntable to rotate the disk-shaped recording medium;
- a chucking slider to move the base unit up and down;
- a tray to move the disk-shaped recording medium between a recording-reproducing position and an ejecting position on the base unit; and
- a drive section which is provided on the tray to self-propel the tray between the recording-reproducing position and the ejecting position,
- wherein the drive section moves the tray to the recording-reproducing position to stop movement and then moves the chucking slider to raise the base unit.
- A lock means may lock the chucking slider while the tray is moving, and may lock the tray and may unlock the chucking slider when the tray moves to the recording-reproducing position. The lock means may comprise a lever. A hook thereof may engage with a recessed section of the chucking slider to lock the chucking slider. A lock pin of the lock lever may enter an L-shaped groove of the tray to lock the tray. The hook of the lock lever may touch a cam surface of the chucking slider so that the lock lever may lock and hold the tray.
- A drive section on the tray may comprise a motor and a gear train. The gear train may be capable of changing gear ratios. A gear ratio may be changeable in accordance with movements of the tray and the chucking slider. The drive section may have a changeover member. Moving the tray to a recording-reproducing position may allow the changeover member to touch a fixed side. Then a changeover operation may be performed to change a gear ratio.
- There may be provided an emergency ejection member which can be manually operated from the outside. Operating the ejection member may allow the chucking slider to lower the base unit. The tray may be pushed to an ejecting position side at the last stroke in movement of the chucking slider according to the emergency ejection member. The emergency ejection member may be attached to an eternal chassis via a dust-proof structure having a spring and may be driven to move in an axis line direction against the spring.
- Furthermore, the present invention relates to a disk recording-reproducing apparatus which rotates a disk-shaped recording medium and uses a pickup for recording and/or reproducing operations, said apparatus comprising:
- a tray to move the disk-shaped recording medium between a recording-reproducing position and an ejecting position; and
- a transport means for moving the tray between the recording-reproducing position and the ejecting position; and
- a detection means for detecting a type of a disk-shaped recording medium placed on the tray,
- wherein a detection result of the detection means changes an output or speed of the transport means.
- The detection means may detect a distinction between cartridge type and bare disk type disk-shaped recording media.
- According to a preferred aspect of the present invention, the drive section is mounted on the rear end of the disk tray. The rack gear provided in the external chassis engages with the pinion constituting an output end of the above-mentioned drive section to move the tray in a self-propelled manner. The DVD optical pickup and the DVR optical pickup are provided before and after the turntable. In order to reduce the apparatus depth, the drive section is mounted on the tray to eliminate a space for installing the tray drive section.
- The rack gear on the external chassis is attached to the chucking slider that is slidably mounted on the bottom of the chassis. When the tray moves, the lock lever prevents the chucking slider from sliding. The lock lever locks the tray when the tray moves to the recording-reproducing position to complete loading of a disk-shaped recording medium. Concurrently, the chucking slider having the rack gear is unlocked to allow the tray drive section equipped with a motor to reversely slide the chucking slider. This makes it possible to move up and down the base unit mounted with the optical pickups and the turntable. That is to say, the tray-mounted single drive section not only drives the tray, but also moves the base unit up and down.
- An L-shaped groove is provided on the bottom surface of the tray at its rear end. The lock lever's lock pin is introduced into the innermost part of the L-shaped groove. After the chucking slider is unlocked, the lock lever's hook is restricted by the cam surface on the moved chucking slider. This makes the tray to be locked by the lock lever's lock pin introduced into the innermost part of the L-shaped groove.
- While the disk recording-reproducing apparatus is provided with two optical pickups before and after the disk rotation section, the integrated tray drive section is mounted on the tray at its rear. This structure minimizes the disk recording-reproducing apparatus. Since the lock lever is used to change restrictions on the chucking slider and the tray, the tray drive section having the single motor can drive the tray and move the base unit up and down. It is possible to provide the simplified structure, decrease the number of parts, and save costs.
- Another aspect of the present invention relates to the emergency ejection mechanism that allows a disk-shaped recording medium to be ejected when the motor for the tray drive section does not rotate in the disk recording-reproducing apparatus using disk-shaped recording media. An aperture is formed in the bottom of the external chassis. An emergency ejecting pinion is provided inside the aperture. The tray can be pulled out manually by inserting a screwdriver. A spring is used to seat the emergency ejecting pinion on the bottom of the chassis. When a screwdriver is inserted, the pinion can move in the axis line direction to rotate. In a normal state, the bottom end of the pinion is seated to prevent dust from entering.
- According to this aspect, a recording medium can be ejected by manually operating the emergency ejecting pinion even if the motor of the tray drive section does not rotate or the drive section fails. Furthermore, the spring applies a force to the emergency ejecting pinion. Accordingly, the emergency ejecting pinion, before pressed, is seated on the mounting section of the external chassis. An opening for inserting the screwdriver is closed to provide a dust-proof effect.
- According to still another aspect of the present invention, there is provided the drive section for driving a tray that moves a disk-shaped recording medium between the ejecting position and the recording-reproducing position. The drive section is mounted on the tray itself. A flexible printed circuit board is used to supply power to the drive section motor. The flexible printed circuit board bends in a U-shaped manner. Since the tray is long and necessitates a long transport distance, the flexible printed circuit board bending in a U-shaped manner becomes long accordingly. This causes a possibility of contact between the slacked flexible printed circuit board and other parts. To avoid this, there is provided a guide for the flexible printed circuit board. The guide is structured to be retractable in accordance with the tray movement.
- The flexible printed circuit board guide is slidably attached to the guide rail. When the tray is pulled out, the flexible printed circuit board guide extends to support the flexible printed circuit board from underneath. When the tray is pushed toward the recording-reproducing position, the flexible printed circuit board guide is put under the bottom surface of the tray. That is to say, the flexible printed circuit board guide is attached under the tray and extends and retracts in accordance with the tray movement. A bearer of the guide rail supports the flexible printed circuit board guide. At this time, the flexible printed circuit board guide is automatically assembled when its nail crosses over the guide rail's cross bar. This improves assemblability of the flexible printed circuit board guide.
- This configuration makes it possible to effectively support the flexible printed circuit board in a limited space by providing the flexible printed circuit board guide under the tray. Since the helical extension spring is used to slide the flexible printed circuit board guide, the guide can be structured to extend when supporting the flexible printed circuit board and can be compactly retracted otherwise. The flexible printed circuit board guide is inserted into the guide rail from one end thereof. The flexible printed circuit board guide is prevented from being disengaged when its nail crosses over the cross bar. This structure can facilitate the insertion and assembly and improve the assembly efficiency.
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FIG. 1 is a perspective view showing an overall configuration of a disk recording-reproducing apparatus; -
FIG. 2 is a perspective view of the disk recording-reproducing apparatus with its tray pulled out; -
FIG. 3 is a perspective view of an external chassis with its upper part opened; -
FIG. 4 is a perspective view of a chucking slider; -
FIG. 5 is a plan view of the external chassis with a base unit installed; -
FIG. 6 is a perspective view of the base unit; -
FIG. 7 is a plan view of the base unit with a DVR cartridge mounted; -
FIG. 8 is a side view of the base unit with the DVR cartridge mounted; -
FIG. 9 is a perspective view of the base unit with the DVR cartridge mounted; -
FIG. 10 is a plan view of the base unit mounted with a bare disk; -
FIG. 11 is a side view of the base unit mounted with a bare disk; -
FIG. 12 is a perspective view of the base unit mounted with a bare disk; -
FIG. 13 is a bottom plan view of a tray drive section; -
FIG. 14 is a bottom plan view of the tray drive section after changeover; -
FIG. 15 is a bottom plan view showing a changeover operation of a changeover plate; -
FIG. 16 is an enlarged plan view showing an oscillating lever and an oscillating gear; -
FIG. 17 is an enlarged front view showing the oscillating lever and the oscillating gear; -
FIG. 18 is a plan view of a lock lever; -
FIG. 19 is a plan view showing how the lock lever locks the chucking slider; -
FIG. 20 is a plan view showing how the lock lever locks the tray; -
FIG. 21 is a plan view showing how a cam surface restricts the lock lever; -
FIG. 22 is a plan view showing an arrangement of the chucking slider and the retracting lever; -
FIG. 23 is a plan view showing how the retracting lever retracts the tray; -
FIGS. 24A and 24B are partially vertical sectional views of the apparatus when the tray is retracting; -
FIGS. 25A and 25B are partially vertical sectional views of the apparatus when the tray has completely retracted; -
FIGS. 26A and 26B are partially vertical sectional views of the apparatus when the base unit is raised; -
FIG. 27 is a plan view showing that the tray is ejected; -
FIG. 28 is a plan view of the apparatus with the tray retracted to a recording-reproducing position; -
FIG. 29 is a bottom plan view of the external chassis; -
FIG. 30 is a perspective view of an emergency ejecting pinion; -
FIG. 31 is a perspective view with the emergency ejecting pinion raised; -
FIG. 32 is a vertical sectional view showing installation of the emergency ejecting pinion; -
FIG. 33 is a vertical sectional view with the emergency ejecting pinion raised; -
FIG. 34 is a partially perspective view showing a detection mechanism for a disk-shaped recording medium; -
FIG. 35 is a partially enlarged and exploded perspective view of the detection mechanism for the disk-shaped recording medium; -
FIG. 36 is a partially enlarged plan view showing a detection operation for a bare disk; -
FIG. 37 is a partially enlarged plan view showing a detection operation for a DVR cartridge; -
FIG. 38 is a block diagram showing a drive circuit of a motor for the tray drive section; -
FIG. 39 is a flowchart showing an operation of changing a motor voltage; -
FIG. 40 is an exploded perspective view of a guide mechanism supporting a flexible printed circuit board; -
FIGS. 41A and 41B are perspective views showing the guide mechanism assembled in an expanded position; -
FIGS. 42A and 42B are perspective views showing the guide mechanism assembled in a retracted position; -
FIG. 43 is a perspective bottom view of the tray mounted with the printed circuit board guide mechanism; -
FIGS. 44A and 44B are partial perspective views of the printed circuit board guide mechanism with the tray ejected and retracted; and -
FIGS. 45A through 45C are partially enlarged side views of the printed circuit board guide mechanism with the tray ejected and retracted. - (1) Description of the Configuration Overall Configuration
-
FIGS. 1 and 2 show an overall configuration of the disk recording-reproducing apparatus according to an embodiment of the present invention. The disk recording-reproducing apparatus has anexternal chassis 10 forming a flat, rectangular solid. Afront panel 11 closes a front aperture of theexternal chassis 10. Ahorizontal aperture 12 is formed in thefront panel 11. As shown inFIGS. 1 and 2 , thehorizontal aperture 12 allows atray 13 to be freely inserted and ejected. Astep section 18 is provided on each of both inner sides of theexternal chassis 10 The bothstep sections 18 support thetray 13 so that it can slide. - A recessed
section 14 is formed approximately at the center of thetray 13. The recessedsection 14 holds and supports a disk-shaped recording medium. Anaperture 15 is formed across the recessedsection 14 in a tray movement direction. Theopening 15 has aU-shaped cut 16 farthest from the front and asemicircular cut 17 nearest to the front. The optical pickups can enter thesecuts - As shown in
FIGS. 3 and 4 , a chuckingslider 20 is mounted inside theexternal chassis 10. The chuckingslider 20 comprises left and right wall sections and a center connecting section. The connecting section haslong holes 21 that extend in the slide direction. Thelong hole 21 engages with ascrew 22 fixed to the external chassis, supporting the chuckingslider 20 capable of sliding in the long direction of thetray 13. - The chucking
slider 20 contains a pair ofcam grooves 23 at the front and the rear on each of both wall sections. Arack 24 is formed on a side of one of wall sections for moving thetray 13 in a self-propelled manner. Anemergency ejecting rack 25 is provided below therack 24 at its front end. If the drive section for thetray 13 fails and cannot eject thetray 13, therack 25 engages with the emergency ejecting pinion (to be described) to eject thetray 13. - Configuration of a
Base Unit 30 - The
base unit 30 is provided above the chuckingslider 20 as shown inFIGS. 2 and 5 . Thebase unit 30 is a flat container. Its both sides (left and right) are each provided with twopins 31. Thesepins 31 fit into thecam grooves 23 in both wall sections of the chuckingslider 20. A tip of thepin 31 engages with avertical slit 32 provided inside each of the both wall sections of theexternal chassis 10. According to this structure, thebase unit 30 is supported so that it can freely move in the height direction. Thecam groove 23 of the chuckingslider 20 limits the height of thebase unit 30. - There are provided a DVD
optical pickup 33 and a DVRoptical pickup 34 on thebase unit 30. The DVDoptical pickup 33 is guided by aguide lock 35 and afeed screw 36. A steppingmotor 37 is provided at the end of thefeed screw 36. When the steppingmotor 37 is driven, thefeed screw 36 allows the DVDoptical pickup 33 to move in the radial direction of a disk-shaped recording medium. - On the other hand, a pair of guide locks 38 and 39 support the DVR
optical pickup 34. A steppingmotor 41 drives afeed screw 40 to move the DVRoptical pickup 34 in the radial direction of the disk-shaped recording medium. - The
optical pickups turntable 43 mounted on thebase unit 30 via abracket 42. That is to say, the DVDoptical pickup 33 is located toward the ejecting direction with reference to theturntable 43. The DVRoptical pickup 34 is located toward the inserting direction with reference to theturntable 43. - The
base unit 30 is provided with a pair of support pins 44 andsupport arms 45 on both sides.FIGS. 7 through 9 show that thetray 13 pulls theDVR cartridge 122 into the chassis by means of the support pins 44 and thesupport arms 45. In this case, thebase unit 30 rises and floats thecartridge 122 from thetray 13 for supporting. Thebare disk 121 is not supported by the support pins 44 and thesupport arms 45. As shown inFIGS. 10 through 12 , theturntable 43 supports thebare disk 121 at its center. - Configuration of a
Drive Section 46 for theTray 13 - Referring now to
FIGS. 13 through 17 , the following describes the structure of thedrive section 46 mounted on thetray 13 for self-propelling thetray 13. Amotor 48 is mounted on achassis 47 constituting thedrive section 46. As shown inFIG. 13 , aworm gear 49 is fixed to an output shaft of themotor 48. Theworm gear 49 engages with aworm wheel gear 50. Theworm wheel gear 50 has a concentric gear which engages with agear 51. Agear 52 concentric with thegear 51 engages with agear 53. Thegear 53 engages with agear 54 that can oscillate. Thegear 54 engages with agear 55 to which apinion 56 is fixed concentrically. - When the
gear 54 oscillates, it engages with anothergear 57. Thegear 57 has a concentric gear which engages with agear 58. Agear 59 concentric with thegear 58 engages with thegear 55. - The oscillating mechanism of the
gear 54 will now be described. As shown inFIG. 15 , thechassis 47 is provided with achangeover plate 62. Along hole 63 engages with apin 64 planted on thechassis 47. Accordingly, thechangeover plate 62 is supported so that it can slide horizontally inFIG. 15 . In addition, aspring 65 applies a sliding force to thechangeover plate 62 toward the right inFIG. 15 . The right end of thechangeover plate 62 is bent to form acontact section 66. - An
oscillating lever 67 inFIG. 16 is rotatively supported on thechassis 47 around apivot 68. A forcingshaft 69 is planted on theoscillating lever 67 and engages in acoupling hole 70 in thechangeover plate 62. Thecoupling hole 70 comprises limitingsections sections oscillating section 73. - When the forcing
shaft 69 engages with one limitingsection 71, thegears FIG. 13 . When the forcingshaft 69 is positioned to the other limitingsection 72, thegears FIG. 14 . As shown inFIG. 17 , thegear 54 has ahelical compression spring 74 around its support shaft. Thehelical compression spring 74 applies a rotative load to thegear 54. When thegear 53 rotates, thegear 54 oscillates in the rotating direction. - Lock Mechanism of the
Tray 13 and theChucking Slider 20 - With reference to
FIG. 18 , the following describes alock lever 78 that locks thetray 13 and the chuckingslider 20. Asupport shaft 79 is planted at the bottom rear of theexternal chassis 10. Thesupport shaft 79 rotatively supports thelock lever 78. As shown inFIG. 18 , ahelical spring 80 rotatively moves thelock lever 78 counterclockwise around thesupport shaft 79. Thelock lever 78 is provided with alock pin 81 for locking thetray 13 and ahook 82 for locking the chuckingslider 20. - As shown in
FIG. 19 , an L-shapedlock groove 85 is formed on the bottom surface of thetray 13 at the rear thereof. The L-shapedlock groove 85 is bent at its end to form a lock section 86 (seeFIG. 43 ). - As shown in
FIG. 19 , a recessedsection 87 is formed at the rear end of the chuckingslider 20 on the right side thereof. The end of the recessedsection 87 forms aflange 88. When thehook 82 of thelock lever 78 engages with theflange 88 of the recessedsection 87, the chuckingslider 20 is locked. Acam surface 89 is formed outside theflange 88 of the chuckingslider 20. When thecam surface 89 restricts thehook 82, thelock lever 78 supports thetray 13 so that it is locked as shown inFIGS. 20 and 21 . - The
support shaft 79 concentrically and rotatably supports a retractinglever 90. One end of the retractinglever 90 forms a pressedsection 91 that touches astep section 92 at the end of the chuckingslider 20 as shown inFIGS. 22 and 23 . Thestep section 92 of the chuckingslider 20 presses to rotatively move the retractinglever 90 from the state inFIG. 22 to the state inFIG. 23 . At this time, the retractinglever 90 presses acontact section 93 at the rear of thetray 13 to press thetray 13 for ejection. This operation is used for ejection by means of the emergency ejecting pinion. - Emergency Ejection Mechanism of the
Tray 13 - Referring now to
FIGS. 29 through 33 , the following describes the structure for ejecting thetray 13 in an emergency, e.g., when themotor 48 of thedrive section 46 for the tray stops rotating or when thedrive section 46 fails. As shown inFIG. 29 , acircular hole 99 is formed on abottom surface 98 of theexternal chassis 10. As shown inFIG. 30 , anemergency ejecting pinion 100 is provided at the front end of theexternal chassis 10 and on the side of thehorizontal aperture 12 so that theemergency ejecting pinion 100 is located inside thecircular hole 99. - A
bracket 101 is attached via a frame on a bottom plate of theexternal chassis 10. Asupport shaft 102 supported by thebracket 101 rotatably supports theemergency ejecting pinion 100 as shown inFIG. 32 . In addition, thesupport shaft 102 is inserted into ahelical compression spring 103 that engages with astep section 104 inside thepinion 100. - As shown in
FIG. 32 , a recessedsection 105 is formed at the bottom of thepinion 100 and accepts asleeve 106. Thesleeve 106 engages with the recessedsection 105 in thepinion 100 in order to ensure a dust-proof structure when theemergency ejecting pinion 100 is moved upward to be activated along the axis line as shown inFIG. 33 . Thepinion 100 engages with theemergency ejecting rack 25 so as to move the chuckingslider 20. - Detection Mechanism for a Disk-shaped Recording Medium
- The following describes the detection mechanism for a disk-shaped recording medium placed on the
tray 13. As shown inFIGS. 34 and 35 , adetection plate 110 is retractably provided against a vertical wall of the recessedsection 14 in thetray 13. Thedetection plate 110 is slidably supported by aslide guide 111 outside the recessedsection 14 in thetray 13 and is pressed toward the projection direction by ahelical spring 112. That is to say, one end of thehelical spring 112 engages with acut 113 of thedetection plate 110. - A
circuit board 114 is provided on the side of theslide guide 111 on which adetection switch 115 is provided. Thedetection plate 110 presses anactuator 116 of thedetection switch 115 to activate a detection operation. - The
detection plate 110 performs no detection operation when thebare disk 121 is mounted on thetray 13 as shown inFIG. 36 . When aDVR cartridge 122 is mounted as shown inFIG. 37 , a vertical wall section of the external chassis of thecartridge 122 presses thedetection plate 110. Thedetection plate 110 slides to press theactuator 116 of thedetection switch 115 for a changeover operation. - The
detection plate 110 activates a changeover operation of thedetection switch 115 that is connected to amicrocomputer 117 as shown inFIG. 38 . Themicrocomputer 117 controls amotor driver 118 that is a drive circuit for themotor 48.FIG. 38 shows a drive system.FIG. 39 shows how the drive system is controlled. In this case, the drive system is configured to change a voltage for driving themotor 48 of thedrive section 46 depending on whether a disk-shaped recording medium is thebare disk 121 or theDVR cartridge 122. - Support Structure of a Power Supply Flexible Printed
Circuit Board 135 - The following describes the support structure of the flexible printed circuit board for supplying power to the
motor 48 of thedrive section 46 for thetray 13. As mentioned above, thetray 13 has thedrive section 46 thereon and moves between the recording-reproducing position and the ejecting position in a self-propelled manner. A flexible printedcircuit board 135 supplies power from a powersupply circuit board 136 to themotor 48 of thedrive section 46 for such self-propelled operation (seeFIGS. 44A and 44B and 45A through 45C). - Let us consider that the
tray 13 moves to the ejecting position or is pulled from theexternal chassis 10 as shown inFIG. 2 . Here, in the middle of the ejecting operation, the power supply flexible printedcircuit board 135 for driving themotor 48 greatly hangs down in the middle of the long direction thereof. To prevent such slack, there is provided a guide mechanism comprising a flexible printedcircuit board guide 125 and aguide rail 126. - As shown in
FIG. 40 , the flexible printedcircuit board guide 125 is made of a long, narrow synthetic resin molding and is slidably supported bybearers 127 provided on both sides of theguide rail 126. The flexible printedcircuit board guide 125 is provided with anail 128. When thenail 128 crosses across bar 129 of theguide rail 126, thenail 128 elastically returns to the original position to prevent the flexible printedcircuit board guide 125 from being disengaged from theguide rail 126. Ahelical extension spring 130 is provided between the flexible printedcircuit board guide 125 and theguide rail 126 as shown inFIGS. 41A, 41B , 42A, and 42B. One end of thehelical extension spring 130 is fixed to a hitchingsection 131 of theguide rail 126. The other end thereof is fixed to a hitchingsection 132 of the flexible printedcircuit board guide 125. According to this structure, the flexible printedcircuit board guide 125 is slidably supported in theguide rail 126. Thehelical extension spring 130 applies force to the flexible printedcircuit board guide 125 in an extending direction away from theguide rail 126. - As shown in
FIG. 43 , the guide mechanism for the flexible printedcircuit board 135 is located in the inner part of thetray 13 and is mounted and fixed to the bottom surface thereof. When thetray 13 ejects as shown inFIG. 44B , the flexible printedcircuit board guide 125 extends to the rear to support the flexible printedcircuit board 135 that is to hang down (seeFIG. 45B ). - (2) Operations and Effects
- Overall Operations
- The following describes overall operations of the disk recording-reproducing apparatus according to the above-mentioned configuration. As shown in
FIG. 2 , operating a switch (not shown) allows thedrive section 46 to eject the self-propelledtray 13 from thehorizontal aperture 12 in thefront panel 11 of theexternal chassis 10. A bare disk or a DVR cartridge is placed in the recessedsection 14 of thetray 13. - In this state, operating the switch (not shown) allows the
motor 48 to drive thedrive section 46 mounted on thetray 13, causing thepinion 56 and therack 24 to retract thetray 13 in a self-propelled manner. As a result, thetray 13 is housed in theexternal chassis 10 as shown inFIG. 1 . - An output from the
drive section 46 of thetray 13 is used to move the chuckingslider 20 in the direction of ejecting thetray 13, i.e., in the forward direction. Thecam groove 23 of the chuckingslider 20 is used to raise thebase unit 30. Then, theturntable 43 on thebase unit 30 rises to rotatively drive the bare disk or a disk in the cartridge. When the bare disk is mounted, the steppingmotor 37 and thefeed screw 36 inFIG. 5 are used to move theoptical pickup 33 for DVD in the radial direction of the optical disk for recording and/or reproducing operations. When the DVR cartridge is mounted, the steppingmotor 41 and thefeed screw 40 are used to move theoptical pickup 34 for DVR in the radial direction of the optical disk for recording or reproducing operations. - The
base unit 30 rises to approach thetray 13. When thetray 13 moves theDVR cartridge 122 to the recording-reproducing position, thesupport pin 44 and thesupport arm 45 of the risingbase unit 30 support thecartridge 122 as shown inFIGS. 7 through 9 . As thebase unit 30 rises, top ends of thesupport pin 44 and thesupport arm 45 extrude through the opening formed in the recessedsection 14 of thetray 13. In this manner, thecartridge 122 is supported above the recessedsection 14 of thetray 13. As shown inFIGS. 10 through 12 , thebare disk 121 is supported at its center by theturntable 43 provided on the risingbase unit 30 and is rotatively driven above the recessedsection 14 of thetray 13. - There is provided the drive means that uses the
common turntable 43 to move theoptical pickups optical pickups - After completion of a specified recording or reproducing operation, the
drive section 46 of thetray 13 lowers thebase unit 30. An output of thedrive section 46 allows thetray 13 to be self-propelled to eject as shown inFIG. 2 . Then, the bare disk or the cartridge can be removed from the recessedsection 14 of thetray 13. - Self-propelled Operation of the
Tray 13 Due to theDrive Section 46 - The
drive section 46 provided on thetray 13 has thechangeover plate 62 as shown inFIGS. 13 and 15 . Thespring 65 applies a sliding force to thechangeover plate 62 toward the right. That is to say, thecontact section 66 comprising the bent portion extrudes. Accordingly, as shown inFIG. 15 , the limitingsection 71 of thecoupling hole 70 restrains the forcingshaft 69 of theoscillating lever 67. In this case, thegears - Consequently, rotation of the
motor 48 is sequentially transmitted to theworm gear 49, theworm wheel gear 50, thegears pinion 56. Thepinion 56 engages with therack 24 of the chuckingslider 20. In addition, thehook 82 of thelock lever 78 locks the chucking slider 20 (seeFIG. 19 ). In this manner, thepinion 56 rolls on therack 24 to enable a self-propelled operation of thetray 13 having thedrive section 46 equipped with thepinion 56. The self-propelled operation of thetray 13 changes one state to the other as shown inFIGS. 1 and 2 . Thetray 13 can reciprocate between the ejecting position inFIG. 2 and the recording-reproducing position inFIG. 1 . - The
motor 48 and thedrive section 46 are provided on thetray 13. Thedrive section 46 enables self-propelled operations of thetray 13. This structure eliminates the need for providing thetray 13 with a drive section at the side of theexternal chassis 10 or thebase unit 30. The recording-reproducing apparatus according to the embodiment, in particular, arranges theoptical pickup 33 for DVD to the front of theturntable 43 and theoptical pickup 34 for DVR to the rear thereof as shown inFIG. 5 . If the drive section for thetray 13 is further arranged to the front of theoptical pickup 33 for DVD, the apparatus will have a very large depth, i.e., the dimension in the lateral direction inFIG. 5 . If the drive section is arranged on thetray 13, by contrast, the drive section need not be arranged on thebase unit 30 or theexternal chassis 10. Accordingly, it is possible to decrease the dimension along the movement direction of thetray 13 and miniaturize the entire apparatus. - Rising Operation of the
Base Unit 30 - An output from the
drive section 46 provided on thetray 13 enables self-propelled operations of thetray 13. Thetray 13 moves from the ejecting position to the recording-reproducing position. Thetray 13 changes the state inFIG. 2 to that inFIG. 1 to retract into theexternal chassis 10. At this time, as shown inFIG. 19 , thelock pin 81 of thelock lever 78, which is provided at the bottom rear of theexterior chassis 10, enters the L-shapedlock groove 85 provided at the rear of thetray 13, wherein thelock pin 81 is provided at the bottom rear of thetray 13. When the output from thedrive section 46 retracts thetray 13 further toward the rear, the end of the L-shapedlock groove 85 in thetray 13 presses thelock pin 81 of thelock lever 78. As shown inFIG. 20 , thelock lever 78 rotates clockwise around thesupport shaft 79 against thespring 80. Thelock pin 81 enters thelock section 86 bent toward the side of the L-shapedlock groove 85. Subsequently, thelock section 86 of the L-shapedlock groove 85 restrains thelock pin 81 of thelock lever 78. In addition, the chuckingslider 20 having thecam surface 89 moves to the left as indicated with an arrow inFIG. 21 . The side surface of thecam surface 89 prevents thehook 82 of thelock lever 78 from rotating. As a result, thelock lever 78 locks thetray 13. - Since the
lock lever 78 rotates clockwise around thesupport shaft 79, thehook 82 of thelock lever 78 disengages from the recessedsection 87 of the chuckingslider 20 as shown inFIG. 20 . This unlocks thelock lever 78 of the chuckingslider 20, enabling the chuckingslider 20 to move in the movement direction of thetray 13. - When the
drive section 46 retracts thetray 13 to the recording-reproducing position, thecontact section 66 of thechangeover plate 62 for thedrive section 46 touches the rear panel of theexternal chassis 10 as shown inFIGS. 1 and 28 . Thecontact section 66 is then pressed to move thechangeover plate 62 to the left against thespring 65 as shown inFIG. 14 . The forcingshaft 69 disengages from the limitingsection 71 for thecoupling hole 70 of thechangeover plate 62. At the same time, the forcingshaft 69 becomes free in theoscillating section 73, causing the oscillatinglever 67 to oscillate. When thechangeover plate 62 further moves to the left, the forcingshaft 69 is introduced into another limitingsection 72 and is restrained here. The oscillatinglever 67 is then switched. Thegear 54 on theoscillating lever 67 disengages from thegear 55 and engages with thegear 57 as shown inFIG. 7 . - Consequently, rotation of the
motor 48 is sequentially transmitted to theworm gear 49, theworm wheel gear 50, thegears pinion 56. At this time, the gear ratio increases in comparison with that for the gear engagement inFIG. 13 . Thepinion 56 decreases the rotational speed and increases the torque. - The
drive section 46 performs the changeover operation in this manner. In addition, thepinion 56 of thedrive section 46 generates high torque. This high drive torque presses therack 24 of the chuckingslider 20 with theunlocked hook 82 of thelock lever 78 toward the front, i.e., in the same direction as the ejection of thetray 13. When the chuckingslider 20 is pressed slightly, thehook 82 of thelock lever 78 runs onto thecam surface 89 of the chuckingslider 20, restraining the rotation of thelock lever 78. This reliably keeps thelock pin 81 of thelock lever 78 to be introduced into thelock section 86 for the L-shapedlock groove 85 of thetray 13. - As shown in
FIGS. 24A and 24B , thedrive section 46 on thetray 13 retracts thetray 13 in a self-propelled manner. Thetray 13 retracts to the recording-reproducing position as shown inFIGS. 24A and 25B . When themotor 48 continues to drive thedrive section 46 for thetray 13, thedrive section 46 is changed due to the movement of thechangeover plate 62. Thepinion 56 constituting an output end of thedrive section 46 feeds therack 24 of the chuckingslider 20 to move the chuckingslider 20 to the left as shown inFIGS. 26A and 26B . - The chucking
slider 20 has thecam grooves 23 on both sides. Thepin 31 of thebase unit 30 engages in each of thecam grooves 23. Thevertical slits 32 provided on both sides of theexternal chassis 10 restrict horizontal movement of thepins 31 at their tips. When thedrive section 46 of thetray 13 drives to slide the chuckingslider 20, thebase unit 30 rises due to an effect of thecam grooves 23 via thepins 31. - When the
base unit 30 rises, theoptical pickup 33 for DVD and theoptical pickup 34 for DVR mounted thereon respectively enter thesemicircular cut 17 and the U-shaped cut 16 of theaperture 15 in thetray 13. Further, theturntable 43 on thebase unit 30 enters theaperture 15 to support an optical disk transported by thetray 13. Accordingly, the optical disk rotates above thetray 13, as if floating there above. Theoptical pickup 33 for DVD or theoptical pickup 34 for DVR accesses the optical disk for recording or reproducing operations. -
FIG. 27 shows that thetray 13 is ejected. A bare disk or a DVR cartridge is mounted on the recessedsection 14 in thetray 13. When thetray 13 retracts with this state, thetray 13 moves to the recording-reproducing position as shown inFIG. 28 . - Falling Operation of the
Base Unit 30 -
FIGS. 26A and 26B show the relationship between thebase unit 30 and thetray 13 during a recording or reproducing operation on the bare disk or the DVD cartridge. Upon completion of the recording or reproducing operation, themotor 48 of thedrive section 46 on thetray 13 is driven reversely, i.e., in the direction of ejecting thetray 13. At this time, thecontact section 66 of thechangeover plate 62 for thedrive section 46 touches the rear panel of theexternal chassis 10. Therefore, the gears in thedrive section 46 engage with each other as shown inFIG. 14 . - When the
motor 48 is driven in this state, thepinion 56 moves therack 24 to the rear with a high drive torque, i.e., to the right inFIGS. 26A and 26B . As shown inFIGS. 25A and 25B , the chuckingslider 20 accordingly moves to the right together with thecam grooves 23 provided thereon that catch thepins 31 on both sides of thebase unit 30. Thepins 31 on thebase unit 30 are lowered along thevertical slits 32. Consequently, the pair ofoptical pickups base unit 30 are lowered from thecuts aperture 15 in thetray 13, respectively. As thebase unit 30 lowers, theturntable 43 lowers to seat the bare disk or the cartridge on the recessedsection 14 of thetray 13. - According to the movement of the chucking
slider 20, thehook 82 of thelock lever 78 inFIG. 21 slides on thecam surface 89 to become the state inFIG. 20 . Then, thehook 82 rotates counterclockwise around thesupport shaft 79 due to a force from thehelical spring 80 and falls into the recessedsection 87 as shown inFIG. 19 . - When the
lock lever 78 rotates counterclockwise around thesupport shaft 79, thelock pin 81 on thelock lever 78 disengages from thelock section 86 of the L-shapedlock groove 85 on thetray 13 to unlock thetray 13. The rotation of thelock lever 78 allows thehook 82 to fall into the recessedsection 87 of the chuckingslider 20. This locks the chuckingslider 20 that becomes the state inFIG. 19 . - The
motor 48 of thedrive section 46 of thetray 13 continues to rotate thereafter. Thepinion 56 of thedrive section 46 rolls on therack 24 of the locked chuckingslider 20 to move thetray 13 to the ejecting position. At an initial stage of this movement, thechangeover plate 62 of thedrive section 46 leaves the rear panel of theexternal chassis 10. Accordingly, thechangeover plate 62 moves to the right due to thespring 65. Thedrive section 46 changes the state inFIG. 14 to that in FIG. 13. The ejection operation takes place at a relatively high speed. When the tray ejects completely, the bare disk or the DVR cartridge can be removed from the recessedsection 14 of thetray 13. - Effects of the Elevation Mechanism for the
Base Unit 30 - The disk recording-reproducing apparatus according to the embodiment of the present invention has two optical pickups corresponding to different disk formats at the front and the rear of the
turntable 43 constituting a disk rotating section. The apparatus has the structure capable of loading operations compatible with DVR-only cartridges and DVD/CD bare disks. - According to the structure of the
base unit 30, there are provided the DVR optical pickup 34 (laser wavelength of 405 nm) for reading and writing data on DVR cartridges and the DVD optical pickup 33 (laser wavelength of 650/780 nm, with a 2-wavelength lens) for recording and reproducing data on DVD/CD disks. These optical pickups are arranged before and after thebase unit 30. The chuckingslider 20 is slidably arranged on the bottom plate of theexternal chassis 10. There is provided a pair ofcam grooves 23 for vertically moving up and down the chuckingslider 20 through the two protrudingpins 31 on each of both sides of thebase unit 30. Further, the chuckingslider 20 has therack 24 that engages with thepinion 56 of thedrive section 46 for thetray 13. - The
tray 13 has the recessedsection 14 and theaperture 15. The recessedsection 14 is capable of mounting a DVR cartridge or a DVD/CD bare disk. Theaperture 15 continuously forms thecuts optical pickups turntable 43. Thetray 13 has thepinion 56 that decelerates rotation of themotor 48 by means of a set of gears and transmits power to therack 24. Thedrive section 46 is mounted on thetray 13 at its rear. - The
hook lever 78 provided on the bottom plate of theexternal chassis 10 comprises thehook 82 for locking the chuckingslider 20 and thelock pin 81 entering thelock section 86 of thelock groove 85 for thetray 13. Thesupport shaft 79 provided with thelock lever 78 is planted on the external chassis that constitutes a guide member for sliding the chuckingslider 20 and thetray 13. - When the
lock lever 78 locks the chuckingslider 20 as shown inFIG. 19 , thecam groove 23 of the chuckingslider 20 allows thebase unit 30 to lower as shown inFIGS. 24A and 24B . Thetray 13 ejects and retracts by means of rotation of themotor 48 in thedrive section 46 for thetray 13. - Immediately before the
tray 13 completely retracts as shown inFIG. 2 , thelock pin 81 of thelock lever 78 enters the L-shapedlock groove 85 in thetray 13 as shown inFIG. 19 . When thetray 13 retracts further, thelock pin 81 of thelock lever 78 is introduced into thelock section 86 of the L-shapedlock groove 85. At the same time as shown inFIG. 20 , thehook 82 of thelock lever 78 disengages from the recessedsection 87 of the chuckingslider 20 to unlock the chuckingslider 20. - The
tray 13 completely retracts to allow thecontact section 66 of thechangeover plate 62 for thedrive section 46 to touch theexternal chassis 10. Then, thedrive section 46 changes the state inFIG. 13 to that inFIG. 14 . In addition, rotation of themotor 48 for thedrive section 46 becomes a driving force for the chuckingslider 20. At this time, thehook 82 of thelock lever 78 slides on thecam surface 89 of the chuckingslider 20 that slides as shown inFIG. 21 . Consequently, thelock lever 78 cannot rotate counterclockwise even if it is applied with a force from thehelical spring 80. Thetray 13 is fixed to that position with thelock pin 81 of thelock lever 78 inserted into thelock section 86. The driving force of thedrive section 46 reversely presses the chuckingslider 20 in the ejection direction to elevate thebase unit 30. - Accordingly, this configuration can miniaturize the drive apparatus for the
tray 13 by providing thetray drive section 46 on thetray 13 at its rear end in the apparatus that arranges a pair ofoptical pickups turntable 43. Since thelock lever 78 is used to lock and unlock the chuckingslider 20 and thetray 13, themotor 48 of thedrive section 46 provided on thetray 13 can exclusively move thetray 13 and elevate thebase unit 30. This makes it possible to decrease the number of drive sections and parts and save the costs. - Emergency Rejection of the
Tray 13 - The following describes an emergency ejection apparatus for the
tray 13 provided in the recording-reproducing apparatus. As mentioned above, thetray 13 is driven by thedrive section 46 mounted thereon for self-propelled operations and can reciprocate between the recording-reproducing position and the ejecting position. When thetray 13 is located to the recording-reproducing position with a bare disk or a DVD cartridge mounted, however, themotor 48 or thedrive section 46 may not function, disabling thetray 13 from being ejected. In this case, the emergency ejection of thetray 13 is made available by inserting a screwdriver into thecircular hole 99 on thebottom plate 98 of theexternal chassis 10 to rotate theemergency ejecting pinion 100. This operation is described below. - As shown in
FIGS. 32 and 33 , theemergency ejecting pinion 100 is rotatively supported by thesupport shaft 102 of thebracket 101. In addition, thehelical compression spring 103 presses thestep section 104. Accordingly, theemergency ejecting pinion 100 is pressed against thebottom plate 103 so that the recessedsection 105 covers thesleeve 106. Thesleeve 106 communicating with thecircular hole 99 is located within the recessedsection 105 of thepinion 100. Thehelical compression spring 103 presses thepinion 100 downward to provide a sealed structure, preventing dust from entering theexternal chassis 10 throughcircular hole 99. - When a screwdriver is inserted into the
circular hole 99 on thebottom surface 98 in this state and is pushed upward, the screwdriver presses thehelical compression spring 103 as shown inFIGS. 31 and 33 . Simultaneously, thepinion 100 slides upward through thesupport shaft 102. At this time, the recessedsection 105 of thepinion 100 engages with an external surface of thesleeve 106. The external surface thereof works as a guide surface. - When the
pinion 100 moves upward in this manner, it engages with theemergency ejecting rack 25 provided under therack 24 of the chuckingslider 20 as shown inFIGS. 31 and 33 . At this time, thehook 82 of thelock lever 78 is positioned on thecam surface 89 of the chuckingslider 20 as shown inFIG. 21 . Thelock lever 78 does not lock the chuckingslider 20. When theemergency ejecting pinion 100 is rotated counterclockwise as indicated with an arrow inFIG. 22 , the chuckingslider 20 moves to the inner part of theexternal chassis 10. That is to say, the chuckingslider 20 moves from the position inFIG. 26B to that inFIG. 25B . Thecam groove 23 of the chuckingslider 20 supports thepins 31 provided on both sides of thebase unit 30 that then moves down along thevertical slit 32. Accordingly, a pair ofpickups turntable 43 on thebase unit 30 disengages downward from theaperture 15 of thetray 13. - In accordance with the movement of the chucking
slider 20 and the subsequent movement of thetray 13, thehook 82 of thelock lever 78 drops into the recessedsection 87 of the chuckingslider 20 due to an elastic restoring force of thehelical spring 80 as shown inFIG. 19 . Thelock lever 78 rotates counterclockwise around thesupport shaft 79 as shown inFIG. 19 . Consequently, thelock section 86 of thelock lever 78 disengages from thelock section 86 of the L-shapedlock groove 85 on thetray 13. Thelock lever 78 is unlocked for thetray 13. - In this state, when the
emergency ejecting pinion 100 is further rotated with the screwdriver, theemergency ejecting rack 25 pushes the chuckingslider 20 as shown inFIG. 22 . Thestep section 92 provided on the chuckingslider 20 then pushes the pressedsection 91 of the retractinglever 90 as shown inFIG. 23 . The retractinglever 90 is rotated counterclockwise around thesupport shaft 79 as shown inFIG. 23 . The tip of the retractinglever 90 then presses thecontact section 93 at the rear of thetray 13, pushing back thetray 13 for a specified amount. As will be clearly understood from the comparison betweenFIGS. 22 and 23 , this push-back amount is equivalent to a length of thetray 13 at its end protruding from thehorizontal aperture 12 of thefront panel 11. - In this manner, the end of the
tray 13 is pushed out of thehorizontal aperture 12 for a specified amount. By holding and pulling the ejected part of thetray 13, a user can completely take out thetray 13 that malfunctioned. Thedrive section 46 functions as an adjuster to slow down the movement of the tray while it is pulled out. - Even if the
drive section 46 or themotor 48 of thetray 13 does not function, such emergency ejection operation for thetray 13 allows a user to pull out thetray 13 and take out the bare disk or the cartridge from thetray 13. Further, as shown inFIG. 32 , thepinion 100 for emergency ejection allows its recessedsection 105 to let in thesleeve 106 provided so as to cover thecircular hole 99. Thehelical compression spring 103 is used to press thepinion 100 downward. According to this structure, the bottom end of theemergency ejecting pinion 100 tightly contacts with thebottom surface 98 of theexternal chassis 10 to provide a dust-proof structure. Therefore, this prevents dust from entering theexternal chassis 10 through thecircular hole 99. - Disk Loading Corresponding to Detection of Media
- As shown in
FIGS. 34 and 35 , the disk recording-reproducing apparatus is provided with thedetection plate 110 so as to face part of the vertical wall at the outside periphery of the recessedsection 14 for thetray 13. Thedetection plate 110 is used to determine a disk-shaped recording medium mounted on the recessedsection 14 for thetray 13. - When the
bare disk 121 is mounted on thetray 13 as shown inFIG. 36 , thedetection plate 110 cannot detect thebare disk 121. Thedetection plate 110 remains pushed by thehelical spring 112. In this case, thedetection switch 115 remains unchanged. When theDVR cartridge 122 is mounted on thetray 13, by contrast, the side wall section at the outside periphery of thecartridge 122 pushes thedetection plate 110 as shown inFIG. 37 . Thedetection plate 110 is retracted against thehelical spring 112. In response to this slide operation, thedetection plate 110 presses theactuator 116 of thedetection switch 115 to change the state of thedetection switch 115. - The
detection plate 110 is used to determine media by detecting thebare disk 121 or theDVR cartridge 122. According to this media determination, themicrocomputer 117 inFIG. 38 changes a voltage applied to themotor 48 based on the flowchart inFIG. 39 . When thebare disk 121 is detected, a drive voltage for themotor 48 is set to 5 V. When theDVR cartridge 122 is detected, a drive voltage for themotor 48 is set to 7 V. - Loads for self-propelling the
tray 13 vary with weights of media placed on thetray 13, a load for opening a shutter of theDVR cartridge 122, and a load for a bare disk chucking mechanism (not shown). Accordingly, it becomes possible to drive themotor 48 with optimal drive voltages corresponding to these loads and stably move thetray 13 despite changes in weights of different-types of media. - Guide Operation for the Flexible Printed
Circuit Board 135 - As mentioned above, the
tray 13 mounts on itself thedrive section 46 and themotor 48 for self-propelled operations. Hence, it is necessary to supply power to themotor 48 of thedrive section 46 from the outside. The power supply flexible printedcircuit board 135 as shown inFIGS. 44A and 44B is used for this purpose. One end of the flexible printedcircuit board 135 is connected to the fixed powersupply circuit board 136. The flexible printedcircuit board 135 supplies power from the fixed powersupply circuit board 136. When thetray 13 is pulled out of thehorizontal aperture 12 of thefront panel 11, the flexible printedcircuit board 135 largely slacks downward in the middle of an operation to pull out thetray 13 as shown inFIG. 45B . There is provided a support mechanism for the flexible printedcircuit board 135 as shown inFIG. 45A comprising the flexible printedcircuit board guide 125 and theguide rail 126 to prevent the flexible printedcircuit board 135 from slacking. - When the
tray 13 is pulled out as shown inFIG. 44A , the support mechanism functions as follows. Thehelical extension spring 130 applies force for pulling out the flexible printedcircuit board guide 125 from theguide rail 126 to support the flexible printedcircuit board 135, as shown inFIGS. 41A and 41B . This operation occurs when thetray 13 moves between the ejecting position and the recording-reproducing position. - In
FIG. 44B , thetray 13 almost completely retracts into thechassis 10 and moves to the recording-reproducing position. At this time, the flexible printedcircuit board guide 125 touches a plate at the rear of theexternal chassis 10. The flexible printedcircuit board guide 125 is pulled into theguide rail 126 as shown inFIGS. 42A and 42B . In this case, the guide mechanism comprising the flexible printedcircuit board guide 125 and theguide rail 126 is maintained to almost the same height as the rear end of thetray 13. - This structure provides a guide member for the flexible printed
circuit board 135 comprising the flexible printedcircuit board guide 125 and theguide rail 126 under thetray 13. This makes it possible to effectively support the power supply flexible printedcircuit board 135 from underneath in a limited space. Since thehelical extension spring 130 is used for sliding the flexible printedcircuit board guide 125, this guide can be extended to support the power supply flexible printedcircuit board 135 or be compactly contracted otherwise. In addition, theguide rail 126 supports the flexible printedcircuit board guide 125 with itsnail 128 crossing over thecross bar 129. The flexible printedcircuit board guide 125 can be very easily assembled to theguide rail 126. - While there has been described the present invention according to the embodiment with reference to the accompanying drawings, the present invention is not limited thereto. Furthermore, the present invention may be embodied in various modifications without departing from the spirit and scope of the invention. While the embodiment concerns the apparatus configured to have an optical disk and an optical head apparatus comprising a pair of
optical pickups - The present invention relates to a disk recording-reproducing apparatus that rotates a disk-shaped recording medium and uses a pickup to record and/or reproduce data from the recording medium. The apparatus comprises a tray to move the disk-shaped recording medium between a recording-reproducing position and an ejecting position; and a drive section that is provided on the tray to self-propel the tray between the recording-reproducing position and the ejecting position.
- According to such a disk recording-reproducing apparatus, the drive section is provided on the tray to self-propel the tray between the recording-reproducing position and the ejecting position. This eliminates the need to provide a drive section at the fixed side, saving the space along the tray movement direction.
- Further, the present invention relates to a disk recording-reproducing apparatus that rotates a disk-shaped recording medium and uses a pickup to record and/or reproduce data from the recording medium. The apparatus comprises a base unit having a pickup and a turntable to rotate a disk-shaped recording medium; a chucking slider to move the base unit up and down; a tray to move the disk-shaped recording medium between a recording-reproducing position and an ejecting position on the base unit; and a drive section provided on the tray to self-propel the tray between the recording-reproducing position and the ejecting position. The drive section moves the tray to the recording-reproducing position to stop movement and then moves the chucking slider to raise the base unit.
- Accordingly, such a disk recording-reproducing apparatus can self-propel the tray by means of the drive section that allows the tray to self-propel between the recording-reproducing position and the ejecting position. When the tray moves to the recording-reproducing apparatus and stops, the drive section on the tray slides the chucking slider to raise the base unit. That is to say, the drive section for the tray can be also used as a drive source for moving the base unit up and down.
- Moreover, the present invention relates to a disk recording-reproducing apparatus that rotates a disk-shaped recording medium and uses a pickup to record and/or reproduce data from the recording medium. The apparatus comprises a tray to move the disk-shaped recording medium between a recording-reproducing position and an ejecting position; a transport means for moving the tray between the recording-reproducing position and the ejecting position; and a detection means for detecting a type of the disk-shaped recording medium placed on the tray. A detection result of the detection means changes an output or speed of the transport means.
- Such a disk recording-reproducing apparatus changes a driving force or a transport speed of the transport means in accordance with a detection result for the disk-shaped recording medium. It becomes possible to move the tray with an optimum driving force or speed in accordance with weights and applied loads for types of disk-shaped recording media.
Claims (2)
1: A disk recording-reproducing apparatus which rotates a disk-shaped recording medium and uses a pickup for recording and/or reproducing operations, said apparatus comprising: a tray to move said disk-shaped recording medium between a recording-reproducing position and an ejecting position; and a transport means for moving said tray between said recording-reproducing position and said ejecting position; and a detection means for detecting a type of a disk-shaped recording medium placed on said tray, wherein a detection result of said detection means changes an output or speed of said transport means.
2: The disk recording-reproducing apparatus according to claim 1 , wherein said detection means detects a distinction between cartridge type and bare disk type disk-shaped recording media.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/510,759 US20060294531A1 (en) | 2001-09-26 | 2006-08-28 | Disc type recording/reproduction device |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001-292919 | 2001-09-26 | ||
JP2001292919A JP2003100007A (en) | 2001-09-26 | 2001-09-26 | Disk type recording/reproducing device |
PCT/JP2002/009580 WO2003030163A1 (en) | 2001-09-26 | 2002-09-18 | Disc type recording/reproduction device |
US10/432,438 US7370338B2 (en) | 2001-09-26 | 2002-09-18 | Disc type recording/reproduction device |
US11/510,759 US20060294531A1 (en) | 2001-09-26 | 2006-08-28 | Disc type recording/reproduction device |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/432,438 Division US7370338B2 (en) | 2001-09-26 | 2002-09-18 | Disc type recording/reproduction device |
PCT/JP2002/009580 Division WO2003030163A1 (en) | 2001-09-26 | 2002-09-18 | Disc type recording/reproduction device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060294531A1 true US20060294531A1 (en) | 2006-12-28 |
Family
ID=19114800
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/432,438 Expired - Fee Related US7370338B2 (en) | 2001-09-26 | 2002-09-18 | Disc type recording/reproduction device |
US11/510,759 Abandoned US20060294531A1 (en) | 2001-09-26 | 2006-08-28 | Disc type recording/reproduction device |
US11/510,761 Abandoned US20060294530A1 (en) | 2001-09-26 | 2006-08-28 | Disc type recording/reproduction device |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/432,438 Expired - Fee Related US7370338B2 (en) | 2001-09-26 | 2002-09-18 | Disc type recording/reproduction device |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/510,761 Abandoned US20060294530A1 (en) | 2001-09-26 | 2006-08-28 | Disc type recording/reproduction device |
Country Status (6)
Country | Link |
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US (3) | US7370338B2 (en) |
EP (1) | EP1435615A1 (en) |
JP (1) | JP2003100007A (en) |
KR (1) | KR20040039180A (en) |
CN (3) | CN1236443C (en) |
WO (1) | WO2003030163A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100505649B1 (en) * | 2002-11-26 | 2005-08-03 | 삼성전자주식회사 | Method and apparatus for detecting cartridge-type disc medium |
ATE464640T1 (en) * | 2003-02-06 | 2010-04-15 | Koninkl Philips Electronics Nv | DISC LOADING APPARATUS FOR A PLAYBACK APPARATUS |
JP2004310933A (en) * | 2003-04-09 | 2004-11-04 | Sony Corp | Disk drive |
TWI256613B (en) * | 2003-12-31 | 2006-06-11 | Asustek Comp Inc | Disc drive with swing-preventing tray |
KR101158482B1 (en) * | 2004-03-31 | 2012-06-20 | 소니 주식회사 | Disk drive device and base unit |
WO2005109421A1 (en) * | 2004-05-06 | 2005-11-17 | Arima Devices Corporation | Loader mechanism for a disk drive unit |
CN100423110C (en) * | 2004-09-21 | 2008-10-01 | 松下电器产业株式会社 | Disc device |
KR100622962B1 (en) * | 2005-01-19 | 2006-09-14 | 삼성전자주식회사 | Disk player |
JP4200446B2 (en) * | 2005-03-03 | 2008-12-24 | ソニー株式会社 | RECORDING MEDIUM DRIVE DEVICE AND ELECTRONIC DEVICE |
KR100661355B1 (en) * | 2005-06-08 | 2006-12-27 | 삼성전자주식회사 | Disc type recording/playing apparatus |
JP4283865B2 (en) * | 2005-11-18 | 2009-06-24 | パイオニア株式会社 | Disk unit |
JPWO2007105732A1 (en) * | 2006-03-14 | 2009-07-30 | パナソニック株式会社 | Optical pickup device and optical disk device equipped with the same |
WO2010080150A1 (en) * | 2009-01-08 | 2010-07-15 | Hewlett-Packard Development Company, L.P. | Computer including hot-pluggable disk storage drives that are mounted in an in-line arrangement |
CN101976572B (en) * | 2010-10-22 | 2012-04-04 | 中山市悦辰电子实业有限公司 | Rotary digital video disk opening and closing mechanism |
TWI486951B (en) * | 2014-05-07 | 2015-06-01 | Quanta Comp Inc | Tray assembly |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH087427A (en) * | 1994-06-14 | 1996-01-12 | Sharp Corp | Disk loading device |
JPH09106602A (en) * | 1995-10-06 | 1997-04-22 | Fujitsu General Ltd | Disc transfer mechanism |
JP2845792B2 (en) * | 1996-01-29 | 1999-01-13 | ナカミチ株式会社 | Disk transfer device |
JP3397049B2 (en) * | 1996-07-22 | 2003-04-14 | ティアック株式会社 | Disk unit |
JP2000339946A (en) * | 1999-05-28 | 2000-12-08 | Nec Corp | Optical disk unit |
EP1174872B1 (en) * | 2000-07-21 | 2005-03-16 | Sony Corporation | Disk drive apparatus |
JP4016696B2 (en) * | 2001-09-04 | 2007-12-05 | ティアック株式会社 | Flexible wiring board and recording / reproducing apparatus using the flexible wiring board |
JP2003157605A (en) * | 2001-11-20 | 2003-05-30 | Matsushita Electric Ind Co Ltd | Disk device |
KR100640578B1 (en) * | 2002-06-18 | 2006-10-31 | 삼성전자주식회사 | An optical disk drive providing a function to remove static electricity from the optical disk |
-
2001
- 2001-09-26 JP JP2001292919A patent/JP2003100007A/en active Pending
-
2002
- 2002-09-18 US US10/432,438 patent/US7370338B2/en not_active Expired - Fee Related
- 2002-09-18 WO PCT/JP2002/009580 patent/WO2003030163A1/en not_active Application Discontinuation
- 2002-09-18 CN CNB028033426A patent/CN1236443C/en not_active Expired - Fee Related
- 2002-09-18 CN CNB2005100516586A patent/CN100373492C/en not_active Expired - Fee Related
- 2002-09-18 CN CNA2005100516571A patent/CN1652232A/en active Pending
- 2002-09-18 KR KR10-2003-7006840A patent/KR20040039180A/en not_active Application Discontinuation
- 2002-09-18 EP EP02767970A patent/EP1435615A1/en not_active Withdrawn
-
2006
- 2006-08-28 US US11/510,759 patent/US20060294531A1/en not_active Abandoned
- 2006-08-28 US US11/510,761 patent/US20060294530A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20040066712A1 (en) | 2004-04-08 |
US20060294530A1 (en) | 2006-12-28 |
CN1652233A (en) | 2005-08-10 |
JP2003100007A (en) | 2003-04-04 |
CN1481555A (en) | 2004-03-10 |
KR20040039180A (en) | 2004-05-10 |
CN100373492C (en) | 2008-03-05 |
US7370338B2 (en) | 2008-05-06 |
WO2003030163A1 (en) | 2003-04-10 |
EP1435615A1 (en) | 2004-07-07 |
CN1652232A (en) | 2005-08-10 |
CN1236443C (en) | 2006-01-11 |
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Legal Events
Date | Code | Title | Description |
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STCB | Information on status: application discontinuation |
Free format text: EXPRESSLY ABANDONED -- DURING EXAMINATION |