JP2004039197A - Disk spindle mechanism of disk drive device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk spindle mechanism of a disk drive device whose size and thickness can be reduced. <P>SOLUTION: In the disk spindle mechanism of the disk drive device having a disk spindle 53 provided with a turntable 54 on which a disk 11 is loaded and a spindle motor 55 for rotating the turn table 54, lock claws 57, 58, 59 are formed on a motor plate 56 of the disk spindle 53. The lock claws 57, 58, 59 are engaged with slidable 3rd and 1st links 43, 41 and cam grooves 60, 61, 62 formed on the sub-cam plate 50 and the disk spindle 53 is moved to the disk 11 located on a chucking position by sliding the 3rd link, etc. so that the disk spindle 53 is moved relatively to a pickup for performing at least one of the reading and writing of information from a disk recording surface. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a disk spindle mechanism of a disk drive device having a turntable.
[0002]
[Prior art]
A disk mounted on the turntable (chucking) is rotated by a spindle motor that is integrated with the turntable and constitutes a disk spindle unit, and a pickup reads or records information from a recording surface of the rotated disk. In a disk drive device configured to write information on a surface, the disk spindle unit and the pickup are fixed to one support member.
[0003]
Among them, in a disk drive device applied to a DVD player as an in-vehicle audio device, a DVD player having a slot-in type disk loading mechanism in a home audio device, and the like, a disk transport device is provided above the support member. A passage is formed (first prior art).
[0004]
In a home audio apparatus, a DVD player having a tray-type disk loading mechanism and a disk drive device applied to a desktop personal computer having a tray-type disk loading mechanism, a disk is provided by raising and lowering the support member. A transfer passage is formed (second prior art).
[0005]
Further, in a disk drive device applied to a notebook personal computer having a tray-type disk loading mechanism, the support member is pulled out, and the disk is inserted into the turntable by a user's manual operation and mounted (chucking). (Third prior art).
[0006]
[Problems to be solved by the invention]
However, in the first prior art, a space for transporting the disk is provided above the turntable of the disk spindle unit, so that it is difficult to reduce the thickness of the disk drive device.
[0007]
In the second prior art, all parts around the disk spindle and the pickup are moved up and down during loading, so that a dead space is increased and it is difficult to reduce the thickness of the disk drive.
[0008]
Further, the third conventional technique is effective for miniaturization and thinning, but requires many manual operations by the user, and the operability of mounting (chucking) the disc is reduced.
[0009]
SUMMARY OF THE INVENTION An object of the present invention is to provide a disk spindle mechanism of a disk drive device capable of realizing a reduction in size and thickness. Another object of the present invention is to provide a disk spindle mechanism of a disk drive device which can improve the operability of mounting a disk. It is still another object of the present invention to provide a disk spindle mechanism of a disk drive device capable of ensuring a relative position between a disk spindle and a pickup.
[0010]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a disk spindle mechanism of a disk drive apparatus having a disk spindle unit having a turntable for mounting a disk and a spindle motor for rotating the turntable. A stop claw is provided, and this locking claw is engaged with a cam groove formed in a slidable slide member, and the slide of the slide member causes the disk spindle portion to move to the disk positioned at the chucking position. The information processing apparatus is characterized in that it is moved relative to a pickup that performs at least one of reading and writing of information from a disk recording surface.
[0011]
According to a second aspect of the present invention, in the first aspect, the slide member is connected to a plurality of members for guiding the disk to a chucking position, and the plurality of members are operated by the slide. It is characterized by having been done.
[0012]
According to a third aspect of the present invention, in the first or second aspect of the present invention, the disk spindle portion is configured to be guided by a guide member for moving parallel to the disk. Things.
[0013]
According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the disk member is held at the substantially final position where the disk spindle is directed toward the disk. The holding means is provided.
[0014]
According to a fifth aspect of the present invention, there is provided a disk spindle mechanism of a disk drive device having a disk spindle unit having a turntable for mounting a disk and a spindle motor for rotating the turntable. A stop claw is provided, and this locking claw is engaged with a cam groove formed in a slidable slide member, and the slide of the slide member causes the disk spindle portion to move to the disk positioned at the chucking position. In contrast, the slide member is provided with a holding means for holding the disk spindle portion at the position where the disk spindle portion is moved toward the disk at a substantially final position toward the disk.
[0015]
According to a sixth aspect of the present invention, in the fifth aspect, the slide member is connected to a plurality of members for guiding the disk to a chucking position, and the plurality of members are operated by the slide. According to a seventh aspect of the present invention, in the fifth or sixth aspect, the disk spindle portion is guided by a guide member for moving parallel to the disk. The invention according to claim 8 is characterized in that the holding means is a roller or a pin in the invention according to any one of claims 1 to 7. Is what you do.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
1A and 1B show main components of a loading / ejection unit of a disk drive device, wherein FIG. 1A is a front view, FIG. 1B is a rear view, FIG. 1C is a front view, FIG. 1D is a right side view, and FIG. Is an overall right side view, and (F) is a left side view. 2 shows the overall configuration of the disk drive device of FIG. 1 with a part omitted, (A) is a front view, (B) is a rear view, (C) is a right side view, and (D) Is a left side view.
[0018]
As shown in FIGS. 1 and 2, the disk drive device 10 transports a disk 11 such as a DVD or a CD to a chucking position α, and mounts the disk 11 on the turntable 54 at the chucking position α. Then, information is read from or written to the recording surface 11A of the disk 11 using a pickup (not shown) while rotating the turntable 54 (chucking). The disk drive device 10 includes a loading / ejection unit 12, a chucking / release unit 13, a pickup unit (not shown), and a chassis unit 14. A pickup unit includes the pickup.
[0019]
In the chassis unit 14, a chassis 16 is installed in a box-shaped device frame 15 having an upper opening, and the opening of the device frame 15 is attached to an upper plate 17 shown in FIGS. 1 (C), (E) and FIG. It is configured to be closed. The chassis 16 has a U-shaped cross section as shown in FIGS. 1C and 1D, and mounts a main part of the loading / ejection unit 12. A disk cover 18 shown in FIGS. 1C and 3 is provided between the chassis 16 and the upper plate 17. The disc cover 18 is arranged on the recording surface 11A side (back side) of the disc 11 carried into the apparatus frame 15 by the loading / ejection unit 12.
[0020]
As shown in FIG. 1, the loading / ejection unit 12 moves the disk 11 inserted into the disk insertion slot (not shown) of the apparatus frame 15 by the user of the disk drive apparatus 10 to the chucking position α (FIG. 2). It has a disk slider 19, a disk arm 20, a disk stopper 23 and a sensor link 24.
[0021]
The disk slider 19 is disposed in the device frame 15 on the side of the disk insertion side 25 provided with a disk insertion port (not shown). The disk slider 19 is slidably provided along the disk insertion side 26 on the disk insertion side 26 corresponding to the disk insertion side 25 in the chassis 16, and has a pin A at a tip end. The pin A is provided so as to be in contact with the peripheral surface of the disk 11. Further, the disk slider 19 is slidably provided in a state where the disk spring 19 is biased by the slide spring 27, so that the spring biasing force of the slide spring 27 can be applied to the disk 11 via the pin A.
[0022]
The disc arm 20 is rotatably supported by a pivot shaft 28 on one side of the device frame 15 adjacent to the disc insertion side 25, and has a pin B at a tip end. This pin B is also provided so as to be in contact with the peripheral surface of the disk 11. The disk arm 20 is rotatably provided in a state of being biased by an arm spring 31 via a spring assister 30, and can apply the spring biasing force of the arm spring 31 to the disk 11 via a pin B. And
[0023]
As shown in FIGS. 6 and 7, when the disk 11 is inserted into the apparatus frame 15 by the user of the disk drive apparatus 10, the disk slider 19 and the disk arm 20 are moved by the respective slide springs 27 and arm springs. The disk 11 pushes out the spring 31 against the spring biasing force. The spring biasing force of the slide spring 27 and the arm spring 31 is such that the center of the disk 11 is inserted beyond the straight line connecting the pin A of the disk slider 19 and the pin B of the disk arm 20, that is, the disk 11 After the disk 11 is inserted through the inflection point, it acts as a force for pushing the disk 11 into the device frame 15.
[0024]
As shown in FIG. 1, the disc stopper 23 is positioned opposite to the disc insertion side 25 of the device frame 15, and is adjacent to the disc insertion side 26 of the chassis 16 via the pivot shaft 33 on the side 32. It is pivotally supported. The peripheral edge of the disk 11 is provided at the tip of the disk stopper 23 so as to be able to abut. As shown in FIG. 5, a stopper substrate 34 is rotatably supported by the pivot shaft 33, and the stopper substrate 34 and the disk stopper 23 sandwich the chassis 16. The disk stopper 23 and the stopper substrate 34 are configured to be integrally rotatable by the urging force of the stopper spring 35, or independently rotatable against the urging force of the stopper spring 35.
[0025]
When the disk stopper 23 is suddenly pushed by the disk 11, the disk stopper 23 rotates independently of the stopper substrate 34, thereby avoiding damage to a connecting link mechanism including a cam main plate 38 described later. You.
[0026]
The stopper substrate 34 is connected to one end of a rotation link 36 rotatably supported by the chassis 16 using a pin 37. The other end of the rotation link 36 is engaged with a cam groove 39 of a cam main plate 38. As shown in FIG. 1, the cam sub-plate 50 integrated with the cam main plate 38 has a pin connected to the first link 41 of the first link 41, the second link 42, and the third link 43. Be combined. The first link 41, the second link 42, and the third link 43 are disposed inside the chassis 16 together with the cam main plate 38. A rack 44 is formed on the third link 43, and a drive motor 40 as a drive source is coupled to the rack 44 via a gear train 45.
[0027]
Accordingly, as shown in FIGS. 8 to 11, the cam main plate 38 is driven via the gear train 45, the third link 43, the second link 42, the first link 41, and the sub cam plate 50 by the activation of the drive motor 40. The slide link is rotated by the cam groove 39 of the cam main plate 38, and the disk stopper 23 is gently rotated outward from the disk drive device 10 via the stopper substrate 34 and the stopper spring 35. As a result, when the disk 11 is loaded, the disk 11 pushed in by the spring biasing force of the disk slider 19 and the disk arm 20 comes into contact with the disk stopper 23 that rotates slowly as described above, and an impact is applied. The guide is gently guided to the chucking position α and is positioned at the chucking position α.
[0028]
The rotation link 36, the cam main plate 38, the cam sub-plate 50, the first link 41, the second link 42, the third link 43, and a link slider 49 described later constitute a connection link mechanism and a slide member. The link mechanism including the drive motor 40 and the gear train 45 constitutes a drive system for driving the disk stopper 23 and the like.
[0029]
As shown in FIGS. 1 and 5, the sensor link 24 is positioned opposite to the disk arm 20 in the device frame 15, and is rotatably supported by the side 32 of the chassis 16 via a pivot 46. You. A pin C that can be brought into contact with the peripheral surface of the disk 11 is implanted in the substrate portion of the sensor link 24, and a locking piece 47 is formed at the tip. The distal end of the sensor link 24 is biased by a link spring 48 as shown in FIG. The locking piece 47 can be locked to a first bent piece 51 of a link slider 49 which is pin-coupled to the cam main plate 38 and provided so as to be relatively movable.
[0030]
When the disk 11 is inserted by a user's manual operation and comes into contact with the pin C, the sensor link 24 rotates against the spring urging force of the link spring 48 and is pushed outward, but the locking link When the 47 contacts the first bending piece 51 of the link slider 49, further rotation is restricted. Since the rotation of the sensor link 24 is restricted until the disk 11 is transported to the chucking position α (FIG. 11), the pin C of the sensor link 24 is moved to the chucking position α. Functions as a position regulating member.
[0031]
Further, as described above, when the locking piece 47 of the sensor link 24 comes into contact with the first bent piece 51 of the link slider 49 and the sensor link 24 rotates to the position where the pin C regulates the disk 11 (see FIG. 8) The sensor link 24 turns on a detection switch 29 (FIG. 5) as a detection unit for activating the drive motor 40. Accordingly, the drive motor 40 is started by the ON operation of the detection switch 29, and the rotation of the disk stopper 23 to the outside of the disk drive device 10 is started as described above.
[0032]
As shown in FIGS. 6 to 11, the disk 11 inserted into the disk drive device 10 by the user's manual operation by the loading / ejection unit 12 configured as described above is rotated by the sensor link 24 whose rotation is restricted. In a state where the position is regulated by the pin C and the disk stopper 23 which rotates outward, the disk is pushed into the apparatus frame 15 by the spring urging force from the disk arm 20 and the disk slider 19 and is transported to the chucking position α. Is done. At this time, the disk stopper 23 is gently rotated by the drive motor 40, so that the disk 11 is gently pushed without being suddenly pushed by the spring biasing force of the disk arm 20 and the disk slider 19, and the disk 11 is smoothly pushed. Loading is performed.
[0033]
Next, the chucking / release unit 13 will be mainly described.
[0034]
As shown in FIGS. 1 and 2, the chucking / release unit 13 includes a disk spindle 53, an upper plate 17, a disk cover 18, and the drive system. It is mounted on the turntable 54 or released.
[0035]
The disk spindle unit 53 is configured such that the turntable 54 (FIG. 16) and a spindle motor 55 for rotating the turntable 54 are integrated, and the spindle motor 55 is supported by a motor plate 56. A plurality of locking claws 57, 58 and 59 are integrally formed on the motor plate 56 at a predetermined distance. The locking claw 57 can be engaged with the cam groove 60 (FIG. 13) of the third link 43 constituting the drive system, and the locking claw 58 is engaged with the cam groove 61 (FIG. 14) of the first link 41. The locking claws 59 can be engaged with the cam grooves 62 (FIG. 1) of the cam sub-plate 50, respectively.
[0036]
The rotation of the drive motor 40 causes the third link 43, the second link 42, the first link 41, the cam sub-plate 50, the cam main plate 38, the rotating link 60, and the like to cause the disk stopper 23 to chuck the disk 11 at the chucking position α. After being guided to (FIG. 2), the third link 43, the first link 41, and the cam sub-plate 50 are slid by the driving force of the continuously rotating drive motor 40, and as shown in FIGS. By the action of the pawl 57 and the cam groove 60, the locking pawl 58 and the cam groove 61, the locking pawl 59 and the cam groove 62, the disk spindle unit 53 moves up and down, that is, moves toward and away from the disk 11 positioned at the chucking position α. It is possible. Thus, the spindle unit 53 is configured to be relatively movable with respect to the pickup (not shown) capable of reading information from the recording surface 11A of the disk 11 or writing information to the recording surface 11A.
[0037]
In the disk spindle section 53, a guide post 63 as a guide member is inserted into the motor plate 56 as shown in FIGS. The guide post 63 is erected on the apparatus frame 15 and guides the disk spindle 53 so that the disk spindle 53 moves vertically (horizontally). In addition, as shown in FIGS. 12 and 13, the disk spindle portion 53 is in the first state before the locking claws 57, 58, 59 are engaged with the cam grooves 60, 61, 62, respectively. When the bottom portion 64 of the link 41 comes into contact with the motor plate 56, the posture is held horizontally.
[0038]
As shown in FIGS. 12 and 16, the disk spindle section 53 is provided with a disk holding section 66 having a chucking claw 65 capable of holding the center hole peripheral edge 11 </ b> B of the disk 11. The chucking claw 66 is provided so as to be able to advance and retreat by a spring urging force, and holds the center hole peripheral edge 11B of the disk 11 when the disk 11 advances, and mounts the disk 11 on the turntable 54. When the disk 11 is mounted on the turntable 54, the upper plate 17 positioned at a position opposite to the disk spindle portion 53 with respect to the disk 11 functions as a receiving member.
[0039]
As shown in FIGS. 4 and 16, the upper plate 17 is provided with a convex portion 67 protruding toward the disk 11 at a position where the disk 11 can come into contact with the upper plate 17. Is formed with a tapered surface 67A. Further, an insertion hole 68 through which the disk holding portion 66 can be inserted when the disk spindle portion 53 is moved up and down is formed at a central portion of the convex portion 67.
[0040]
In addition, a tapered surface 69 that protrudes outward toward the disk 11 is formed on the upper plate 17 on the side where the disk 11 is inserted. Thereby, only the peripheral edge of the disk 11 abuts on the tapered surface 69 when the disk 11 is transported, and the contact area between the disk 11 and the upper plate 17 is reduced. The upper plate 17 is coated on the disk 11 side with a coating for preventing damage to the disk 11.
[0041]
The disk 11 positioned at the chucking position α is mounted on the turntable 54 by using the disk holding unit 66 and the upper plate 17 by the above-described lifting operation of the disk spindle unit 53.
[0042]
That is, as shown in FIG. 16A, when the disk 11 is transported (loaded) to the chucking position α, the center of the disk 11 coincides with the center of the disk spindle unit 53. The part 53 is at the lowest position. When the disk spindle 53 rises from the state shown in FIG. 16A, the disk holding portion 66 of the disk spindle 53 hits the disk 11, and the disk 11 comes into contact with the convex portion 67 of the upper plate 17, and 11 is held between the disk holding part 66 and the upper plate 17 (FIG. 16B).
[0043]
When the disk spindle 53 further rises, the disk holding part 66 is inserted into the insertion hole 68 of the upper plate 17, and the disk 11 is held by the reaction force (pressing reaction force) that presses the convex part 67 of the upper plate 17. The chucking claw 65 of the portion 66 advances after retreating against the spring urging force, and holds the center hole peripheral edge 11B of the disk 11. Thus, the disk 11 is mounted on the turntable 54 and chucked (FIG. 16C). Thereafter, the disk spindle 53 is lowered by the shapes of the respective cam grooves 60, 61, 63 in the third link 43, the first link 41, and the cam sub-plate 50, and the disk 11 and the upper plate 17 mounted on the turntable 54 are lowered. (FIG. 16D). The state shown in FIG. 16D is a playable state of the disk drive device 10.
[0044]
The shape of the cam groove 60 of the third link 43 among the respective cam grooves 60, 61, 63 of the third link 43, the first link 51, and the cam sub-plate 50 is shown in FIG. When the locking claw 57 moves in the main inclined area 60A of the cam groove 60, the disk spindle 53 rises (corresponding to FIG. 16B), and the locking claw 57 is moved to the topmost area which is continuous with the main inclined area 60A. When the disk spindle 60 reaches 60B, the disk spindle 53 further rises, and the disk holder 66 of the disk spindle 53 holds the peripheral edge 11B of the center hole of the disk 11 and mounts (chucks) the disk 11 (FIG. 16). (Corresponds to (C)). When the locking claw 57 reaches the evacuation area 64 continuous with the top area 60B, the disc spindle unit 50 descends to form a gap between the disc 11 mounted on the turntable 54 and the upper plate 17. Then, it becomes a playable state position (corresponding to FIG. 16D).
[0045]
When the locking claw 57 reaches the retreat area 64 of the cam groove 60 (FIG. 15B), the extending portion 71 extending to the locking claw 57 is attached to the roller 72 provided on the third link 43. Is placed. At the same time as the extension 71 of the locking claw 57 is placed on the roller 72, the portion near the locking claw 59 of the motor plate 56 is moved to the roller 74 provided on the cam sub-plate 50, as shown in FIG. Is placed. These rollers 72 and 74 are loosely fitted to pins 73 and 75 implanted in the third link 43 and the cam sub-plate 50, respectively, and hold means for holding the disk spindle portion 53 at a playable position. It is. The holding means may be only the pins 73 and 75.
[0046]
In the playable state position of the disk spindle unit 53, the extension part 71 is mounted on the roller 72, and the portion near the locking claw 59 of the motor plate 56 is mounted on the roller 74 to maintain the state. When the playable position is held by the engagement between the locking claw 57 and the cam groove 60, the locking claw 58 and the cam groove 61, and the locking claw 59 and the cam groove 62, the wear of the cam grooves 60, 61, and 62 causes the wear. This is because the position may change and the relative position with respect to the pickup may shift. This allows the disk drive device 10 to function as a DVD player.
[0047]
As described above, when the disk spindle unit 53 reaches or reaches the playable state position, the above-described loading / ejection unit 12 operates by the driving force of the continuously rotating drive motor 40, and FIG. 11 and FIG. As shown, the sensor link 24, the disk stopper 23 and the disk arm 20 are retracted from the disk 11.
[0048]
That is, after the disk 11 is mounted on the turntable 54 by the disk holding unit 66 of the disk spindle unit 53 and the link slider 49 slides together with the cam main plate 38 by the driving force of the driving motor 40, as shown in FIG. First, the rotation restriction of the sensor link 24 by the first bent piece 51 of the link slider 49 locking the locking piece 47 of the sensor link 24 is released. Next, the second bent piece 52 of the link slider 49 presses the tip piece 76 of the sensor link 24 to rotate the sensor link 24 against the urging force of the link spring 48. As a result, the pin C at the base end of the sensor link 24 moves away from the disk 11 and retreats.
[0049]
Further, as described above, when the link slider 49 slides together with the cam main plate 38 by the driving force of the driving motor 40, the rotating link 39 is pushed by the cam groove 39 of the cam main plate 38 as shown in FIG. Then, the disk arm 20 rotates in a direction away from the disk 11 via the pins 37 of the stopper substrate 34 and retracts from the disk 11.
[0050]
Similarly, after the disk 11 is mounted on the turntable 54 by the disk holding unit 66 of the disk spindle unit 53 and the third link 43 is slid by the driving force of the driving motor 40 as shown in FIG. The tongue 77 formed on the 43 engages with the engagement piece 78 of the disk arm 20 to rotate the disk arm 20 against the urging force of the arm spring 31. As a result, the pin B of the disk arm 20 moves away from the disk 11 and retreats.
[0051]
In this manner, the disk 11 is mounted (chucking) on the turntable 54 of the disk spindle unit 53, the disk spindle unit 53 is positioned at the playable position, and the sensor link 24, the disk stopper 23, and the disk arm 20 are connected to the disk 11 The turntable 54 is rotated by the spindle motor 55 in a state of being retracted from the disk, information is read from the recording surface 11A of the rotating disk 11 by the pickup, or information is written on the recording surface 11A, and play is executed. You.
[0052]
The release operation of the disk 11 normally performed after the execution of the play is performed by using the chucking / release unit 13, and the ejection operation of the disk 11 is performed by using the loading / ejection unit 12.
[0053]
As shown in FIG. 20, the disk cover 18 as a locking member constituting the chucking / release unit 13 has a recording surface 11A on the back surface of the disk 11 mounted on the turntable 54 of the disk spindle unit 53. Placed on the side. As shown in FIG. 3, the disk cover 18 has a throttle portion 79 at a central position, and the throttle portion 79 can lock a center hole peripheral portion 11C of the disk 11 corresponding to a portion other than the recording surface 11A of the disk 11. And
[0054]
The disk cover 18 is formed with a tapered surface 80 around the narrowed portion 79 to prevent the disk 11 from being damaged by the narrowed portion 79. A tapered surface 81 is formed on the side of the disk cover 18 where the disk 11 is inserted so as to protrude outward toward the disk 11. Due to the tapered surface 81, only the periphery of the disk 11 abuts on the tapered surface 81 when the disk 11 is transported, and the contact area between the disk 11 and the disk cover 18 is reduced. Further, a coating is applied to the disk 11 side of the disk cover 18 to prevent damage to the disk 11.
[0055]
As shown in FIG. 20, the disk 11 is locked by the disk cover 18 and released from the turntable 54 by the lowering operation (moving operation in the release direction) of the disk spindle unit 53 in which the disk 11 is mounted on the turntable 54. .
[0056]
In other words, when the drive motor 40 is rotated in the direction opposite to that during chucking in a state where the disk spindle unit 53 is positioned at the playable state position shown in FIG. 20A, the third link 43 and the second link 42, the first link 41 and the cam sub-plate 50 slide, and the disc spindle portion 53 is lowered by the action of the cam groove 60 of the third link 43, the cam groove 61 of the first link 41, and the cam groove 62 of the cam sub-plate 50. I do. During the process of lowering the disk spindle 53, the center hole peripheral portion 15C of the disk 11 mounted on the turntable 54 comes into contact with the throttle portion 79 of the disk cover 18 and is locked (FIG. 20B). Further, as the disk spindle 53 descends, the disk 11 remains on the throttle 79, and only the disk spindle 53 descends, releasing the disk 11 from the turntable 54 (FIG. 20C).
[0057]
The ejection operation of the disk 11 using the loading / ejection unit 12 is carried out by the driving force of the driving motor 40 which continuously rotates in the reverse direction as shown in FIG.
[0058]
That is, the driving force of the driving motor 40 is transmitted to the rotating link 36 via the gear train 45, the third link 43, the second link 42, the first link 41, the cam sub plate 50, and the cam main plate 38, and The rotation of the link 36 causes the disk stopper 23 to rotate in a direction to eject the disk 11 from the mounting frame 65 to the outside. Thus, the disk 11 is ejected out of the disk drive device 10 against the spring urging force of the arm spring 31 acting on the disk arm 20 and the slide spring 27 acting on the disk slide 19.
[0059]
According to the above-described embodiment, the following effects (1) to (10) can be obtained.
[0060]
(1) The disk slider 19 is provided with a pin A which can be brought into contact with the peripheral edge of the disk 11, and the disk 11 can be pushed in using the pin A, and the disk arm 20 can be brought into contact with the peripheral edge of the disk 11. Since the disk 11 can be pushed into the apparatus frame 15 using the pin B, the disk slider 19 and the disk arm 20 that transport the disk 11 come into contact with the recording surface 11A of the disk 11. Nothing. As a result, the occurrence of damage to the recording surface 11A and the attachment of foreign substances can be reliably prevented.
[0061]
(2) The disk slider 19 pushes the disk 11 into the apparatus frame 15 via the pin A by the action of the spring biasing force of the slide spring 27, and the disk arm 20 moves the pin by the action of the spring biasing force of the arm spring 31. Since the disk 11 is pushed into the apparatus frame 15 via the B, components (motors and gear trains) for driving the conveying rollers and the conveying belt as in the prior art are not required. Therefore, the disk drive device 10 can be reduced in size and thickness, and the disk drive device 10 can be suitably applied to a notebook personal computer or the like.
[0062]
(3) After the user inserts the disk 11 into the disk insertion slot (not shown) of the apparatus frame 15, the disk slider 19 and the disk arm 20 transport (load) the disk 11 into the apparatus frame 15, and the disk stopper Since the disk 23 is transported (ejected) to the outside of the apparatus frame 15 by the driving force of the drive motor 40, the operability at the time of loading the disk 11 can be improved.
[0063]
(4) The disk spindle unit 53 including the turntable 54 for mounting the disk 11 and the spindle motor 55 for rotating the turntable 54 moves with respect to the disk 11 positioned at the chucking position α, and the pickup is moved. Since it is fixed, only the disk spindle portion 53 that hinders the loading of the disk 11 can be moved up and down, so that the dead space can be reduced, and in this regard, the size and thickness of the disk drive device 10 can be reduced. .
[0064]
(5) The disk spindle portion 53 is almost at the final position toward the disk 11, that is, the locking claws 57 and 59 of the motor plate 56 are in the retreat area 60A of the cam groove 60 of the third link 43 and the cam groove 62 of the cam sub plate 50, respectively. The extension 71 extending from the locking claw 57 is mounted on the roller 72 at a position where it engages with the retraction area, and the portion of the motor plate 56 near the locking claw 59 is mounted on the roller 74 to disc The spindle unit 53 is held at the playable state position. For this reason, even if the cam grooves 60 and 62 are worn by the locking claws 57 and 59, respectively, the height of the playable position of the disc spindle portion 53 with respect to the pickup can be accurately secured. Therefore, the present invention can be suitably applied to a disk drive device for a DVD player in which the positional accuracy between the disk spindle unit 53 and the pickup is important.
[0065]
Furthermore, even if the cam grooves 60 and 62 are worn by the locking claws 57 and 59, respectively, the playable position of the disk spindle 53 can be accurately secured, so that the disk spindle 53 can be installed in a narrow space. Problems such as careless contact with other parts can be avoided.
[0066]
(6) The disk spindle unit 53 including the turntable 54 is provided so as to be able to approach and separate from the disk 11 positioned at the chucking position α, and the upper plate 17 is located at a position opposite to the disk spindle unit 53 with the disk 11 as a boundary. The disk spindle unit 53 is placed close to the disk 11, and the disk 11 is pressed against the upper plate 17, so that the disk 11 is mounted on the turntable 54 and chucked by the pressing reaction force. There is no need to chuck the disk 11 manually. Therefore, the operability of mounting (chucking) the disk 11 on the turntable 54 can be improved.
[0067]
(7) When the disk spindle 53 approaches the disk 11 and presses the disk 11 against the upper plate 17, the peripheral edge 11 B of the center hole of the disk 11 is engaged with the chucking claw 65 of the disk holding part 66 by the pressing reaction force. Since the disk 11 is stopped and the disk 11 is mounted on the turntable 54 and chucked, clamping and the like become unnecessary, and the size and thickness of the disk drive device 10 can be reduced.
[0068]
(8) The disk arm 20 for pushing the inserted disk 11 to the chucking position α, the disk stopper 23 holding the disk 11 and guiding the disk 11 to the chucking position α, and regulating the position of the disk 11 moving to the chucking position α. The sensor link 24 is configured to be retracted from the disk 11 by the driving force of the same drive motor 40 when the disk 11 is mounted (chucking) on the turntable 54, so that the sensor link 24 can be favorably formed with a simple structure. The disk arm 20, the disk stopper 23, and the sensor link 24 can be retracted from the disk 11.
[0069]
(9) With the disk 11 mounted on the turntable 54, the disk spindle 53 is moved in the release direction, thereby locking the disk 11 to the disk cover 18 and leaving the disk 11 on the disk cover 18. As a result, the disk 11 is removed from the disk holding section 66 of the disk spindle section 53 and the disk is released from the turntable 54, so that the user does not need to manually release the disk 11 from the turntable 54, and the disk release is not required. Operability can be improved.
[0070]
(10) A disk spindle portion 53 is provided movably in the axial direction with respect to a disk cover 18 for releasing the disk 11 mounted on the turntable 54, and a mechanism for lifting a clamper, a mechanism for lifting a disk, and the like are provided. Since it becomes unnecessary, the size and thickness of the disk drive device 10 can be reduced.
[0071]
As described above, the present invention has been described based on the above embodiment, but the present invention is not limited to this.
[0072]
【The invention's effect】
According to the disk spindle mechanism of the disk drive device according to the present invention, downsizing and thinning can be realized. Further, according to the disk spindle mechanism of the present disk drive device, the operability of mounting a disk can be improved. Further, according to the disk spindle mechanism of the present disk drive device, the relative position between the disk spindle and the pickup can be ensured well.
[Brief description of the drawings]
FIG. 1 shows main parts of a loading / ejection unit of a disk drive device, wherein (A) is a front view, (B) is a rear view, (C) is a front view, (D) is a right side view, and (E). Is an overall right side view, and (F) is a left side view.
FIG. 2 shows the entire configuration of the disk drive device in FIG. 1 with a part thereof omitted, (A) is a front view, (B) is a rear view, (C) is a right side view, and (D) is a left side. FIG.
3A and 3B show the disk cover of FIG. 1, wherein FIG. 3A is a front view, FIG. 3B is a cross-sectional view taken along the line IIIB-IIIB of FIG. 3A, and FIG.
4A and 4B show the upper case of FIG. 1, wherein FIG. 4A is a front view, FIG. 4B is a sectional view taken along the line IVB-IVB of FIG. 4A, and FIG. 4C is a view of IVC-IV of FIG. It is sectional drawing which follows the IVC line.
5A and 5B show the sensor link, the rotation link and the periphery of the main cam plate of FIG. 1, wherein FIG. 5A is a front view and FIG. 5B is a left side view.
FIG. 6 is a front view showing a state in which the loading mechanism of FIG. 1 starts inserting a disc.
FIG. 7 is a front view showing the operation of the loading mechanism of FIG. 1 at the time of starting loading (transporting) a disk.
FIG. 8 is a front view showing the operation of the loading mechanism of FIG. 1 when the drive motor is started.
FIG. 9 is a front view showing a state (part 1) during the loading operation of the disk by the loading mechanism of FIG. 1;
10 is a front view showing a state (part 2) during the loading operation of the disk by the loading mechanism of FIG. 1;
11 is a front view showing a state where the loading operation of the disk by the loading mechanism of FIG. 1 is completed (a chucking position state).
12A and 12B show an initial position of the disk spindle unit in FIG. 2, wherein FIG. 12A is a front view and FIG. 12B is a right side view.
13A is a front view and FIG. 13B is a right side view showing a rising start position of the disk spindle unit in FIG. 2;
FIGS. 14A and 14B show a rising end position of the disk spindle unit in FIG. 2, wherein FIG. 14A is a front view and FIG. 14B is a right side view.
15A and 15B show the relationship between the cam groove of the third link and the locking piece of the disk spindle in FIGS. 12 to 14, wherein FIG. 15A corresponds to FIG. 13 and FIG. FIG.
FIG. 16 is a side view mainly showing a chucking operation of the disk performed by elevating the disk spindle unit.
FIG. 17 is a front view showing a play position state in the loading mechanism of FIG. 1;
18 (A) and (B) are a front view and a left side view up to a disc chucking position, and FIGS. 18 (C) and 18 (D) show a play position. It is the front view and left side view in a state.
19A and 19B show the operation of the disc arm by the third link in FIG. 17, wherein FIGS. 19A and 19B are a front view up to the chucking position, a right side view, and FIGS. 3 is a front view and a right side view of FIG.
FIG. 20 is a side view showing a disk release operation performed by elevating the disk spindle unit.
[Explanation of symbols]
Reference Signs List 10 disk drive device 11 disk 11A recording surface 11B center hole periphery 11C center hole periphery 12 loading / ejection unit 13 chucking / release unit 14 chassis unit 15 device frame 16 chassis 17 upper plate 18 disk cover 19 disk slider 20 disk arm 23 Disk stopper 24 Sensor link 25 Disk insertion side 27 Slider spring 29 Detection switch (detection means)
31 arm spring 34 stopper board 38 cam main plate 40 drive motor 41 first link 42 second link 43 third link 49 link slider 52 second bent piece 53 disk spindle section 54 turntable 55 spindle motor 56 motor plates 57, 58, 59 Locking pieces 60, 61, 62 Cam groove 66 Disk holding part 67 Convex part 68 Insertion hole 71 Extension part 72, 74 Roller 76 Foremost piece 77 Tongue piece 79 Narrowing parts A, B, C Pin α Chucking position

Claims (8)

In a disk spindle unit mechanism of a disk drive device having a disk spindle unit having a turntable for mounting a disk and a spindle motor for rotating the turntable,
A locking claw is provided on the disk spindle portion, and the locking claw is engaged with a cam groove formed on a slidable slide member,
The disk spindle is moved relative to the disk positioned at the chucking position by the slide of the slide member, and is relatively movable with respect to a pickup that performs at least one of reading and writing of information from the disk recording surface. A disk spindle mechanism of a disk drive device, characterized in that: 2. The disk drive according to claim 1, wherein the slide member is connected to a plurality of members for guiding the disk to a chucking position, and the slide member operates the plurality of members. Spindle mechanism. 3. The disk spindle mechanism according to claim 1, wherein the disk spindle is guided by a guide member that moves parallel to the disk. 4. The slide member according to claim 1, wherein said slide member is provided with holding means for holding said disk spindle portion at the substantially final position where said disk spindle portion faces said disk. Disk spindle mechanism of disk drive. In a disk spindle unit mechanism of a disk drive device having a disk spindle unit having a turntable for mounting a disk and a spindle motor for rotating the turntable,
A locking claw is provided on the disk spindle portion, and the locking claw is engaged with a cam groove formed on a slidable slide member,
The disk spindle is moved by the slide of the slide member with respect to the disk positioned at the chucking position, and the disk spindle is held at this position at a substantially final position toward the disk. A disk spindle mechanism of a disk drive device, wherein holding means is provided on the slide member. 6. The disk drive according to claim 5, wherein the slide member is connected to a plurality of members for guiding the disk to a chucking position, and the slide member operates the plurality of members. Spindle mechanism. 7. The disk spindle mechanism according to claim 5, wherein the disk spindle is guided by a guide member for moving parallel to the disk. 8. The disk spindle mechanism according to claim 1, wherein said holding means is a roller or a pin.

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