JP3959312B2 - Loading mechanism of disk drive device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a loading mechanism of a disk drive device.
[0002]
[Prior art]
In a disk drive device mounted on a personal computer, a drive mechanism (loading mechanism) for transporting a disk adopts a tray system (first prior art). In this method, the user manually pulls out the tray, presses the disk against the turntable provided on the tray, chucks it, and pushes the tray again by manual operation.
[0003]
On the other hand, in a disk drive device mounted on a home audio device or an in-vehicle audio device, a drive mechanism (loading mechanism) for transporting a disk adopts a slot-in method. In this slot-in method, since the disk is simply pushed into the apparatus, the operability is superior to the tray method of the first prior art.
[0004]
In this slot-in method, a conveying roller is used, the conveying roller is brought into contact with the recording surface or label surface of the disk, and the disk is conveyed by friction driving (second conventional technology), and a conveying belt and a conveying pulley are provided. There are some which use these conveying belts etc. in contact with the side surface of the disk and convey the disk by friction drive (third prior art).
[0005]
[Problems to be solved by the invention]
However, in the slot-in type loading mechanism described above, since components (such as a transport roller) for frictionally driving the disc are arranged, the second conventional technology is in the vertical direction with respect to the disc, and the third conventional technology is in the horizontal direction with respect to the disc. The direction dimension increases compared to the tray system.
[0006]
In the second prior art, since the transport roller contacts the recording surface of the disk, there is a risk that the recording surface may be damaged or foreign matter may adhere. In particular, in a disk drive device for a personal computer having a writing function such as a CD-R or CD-RW, the above-described scratches on the disk recording surface must be avoided.
[0007]
For the above reasons, the slot-in type loading mechanism is excellent in operability, but has not been adopted in a disk drive device mounted on a personal computer.
[0008]
SUMMARY OF THE INVENTION An object of the present invention is to provide a loading mechanism for a disk drive device that can prevent the adhesion of foreign matter to the recording surface of the disk and the occurrence of scratches in consideration of the above-described circumstances. Another object of the present invention is to provide a loading mechanism of a disk drive device that can be reduced in size and thickness.
[0009]
[Means for Solving the Problems]
According to the first aspect of the present invention, in the loading mechanism of the disk drive device that conveys the inserted disk to the chucking position, the disk is inserted in the disk insertion side of the apparatus frame and is spring-biased along the insertion side. A pin A that is movably provided and has a pin A that can be brought into contact with the peripheral edge of the disc, and that has a pin B that can come into contact with the peripheral edge of the disc on the side adjacent to the disc insertion side in the apparatus frame. And having a disk arm rotatably provided in a spring-biased state, when the disk is inserted, the pin A and the pin B are pushed and spread by the disk, The center of the disc is a straight line connecting the pin A and the pin B After passing, these pins A and B are configured to push the disc into the inside of the apparatus frame by a spring biasing force.
[0010]
According to a second aspect of the present invention, in the first aspect of the present invention, a disk stopper that can contact the peripheral edge of the disk is rotatably provided facing the disk insertion side of the device frame. The disc is positioned at the chucking position by the rotation of the stopper.
[0011]
The invention according to claim 3 is the claim 2 In the invention described in the above, a sensor link having a pin C that can be brought into contact with the peripheral edge of the disk is rotatably provided so as to face the disk arm in the apparatus frame, and when the disk is inserted, the pin C is in a chucking position. It is characterized in that the position of the disc transported to is restricted.
[0012]
The invention according to claim 4 is the claim To 3 In the described invention, the sensor link is configured to activate a drive system for rotating the disk stopper when the sensor link is rotated to a position for regulating the disk.
[0013]
The invention according to claim 5 is the claim. 3 or 4 In the described invention, the pin A, the pin B, the pin C, and the disk stopper are configured to be retracted from the disk by the operation of the drive system after the disk is chucked on the turntable at the chucking position. It is characterized by.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
1A and 1B show main components in a loading / ejecting unit of a disk drive device, where 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.
[0016]
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. The information is read from the recording surface 11A of the disk 11 or written to the recording surface 11A using a pickup (not shown) while rotating (turning) the turntable 54. The disk drive device 10 includes a loading / ejecting unit 12, a chucking / release unit 13, a pickup unit (not shown), and a chassis unit 14. A pickup unit includes the pickup.
[0017]
The chassis unit 14 has a chassis 16 installed in a box-shaped device frame 15 having an opening on the upper side, and the opening of the device frame 15 is formed on the upper plate 17 shown in FIGS. 1 (C), (E) and FIG. It is configured to be blocked. As shown in FIGS. 1C and 1D, the chassis 16 has a U-shaped cross-sectional shape and mounts a main part of the loading / ejecting unit 12. A disc cover 18 shown in FIG. 1C and FIG. 3 is installed between the chassis 16 and the upper plate 17. The disc cover 18 is disposed on the recording surface 11A side (back side) of the disc 11 carried into the apparatus frame 15 by the loading / ejecting unit 12.
[0018]
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 is configured to have a disk slider 19, a disk arm 20, a disk stopper 23, and a sensor link 24.
[0019]
The disk slider 19 is disposed in the apparatus frame 15 on the disk insertion side 25 side having a disk insertion opening (not shown). The disk slider 19 is slidably provided along the disk insertion side 26 on the side of the disk insertion side 26 corresponding to the disk insertion side 25 in the chassis 16 and includes a pin A at the tip. The pin A is provided so as to be able to contact the peripheral surface of the disk 11. Further, the disk slider 19 is slidably provided in a state of being urged by a slide spring 27, and the spring urging force of the slide spring 27 can be applied to the disk 11 via the pin A.
[0020]
The disk arm 20 is pivotally supported by a pivot shaft 28 on one side of the apparatus frame 15 adjacent to the disk insertion side 25 and includes a pin B at the tip. This pin B is also provided so as to be able to contact the peripheral surface of the disk 11. Further, the disk arm 20 is rotatably provided in a state where it is biased by an arm spring 31 via a spring assist 30, and the spring biasing force of the arm spring 31 can be applied to the disk 11 via a pin B. And
[0021]
As shown in FIGS. 6 and 7, when the disk 11 is inserted into the apparatus frame 15 by the user's manual operation of the disk drive apparatus 10, the disk slider 19 and the disk arm 20 have their respective slide springs 27 and arm springs. It is spread by the disk 11 against the spring biasing force of 31. The spring biasing force of the slide spring 27 and the arm spring 31 is such that 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 at the center of the disk 11. After being inserted through the inflection point, this acts as a force for pushing the disk 11 into the apparatus frame 15.
[0022]
As shown in FIG. 1, the disk stopper 23 is positioned to oppose the disk insertion side 25 in the apparatus frame 15 and is adjacent to the disk insertion side 26 of the chassis 16 on the side 32 side via a pivot shaft 33. It is pivotally supported. In addition, the peripheral edge of the disk 11 is provided at the front end of the disk stopper 23 so as to be able to come into contact therewith. As shown in FIG. 5, a stopper substrate 34 is pivotally supported on the pivot shaft 33, and the chassis 16 is sandwiched between the stopper substrate 34 and the disk stopper 23. The disk stopper 23 and the stopper substrate 34 can be integrally rotated by the urging force of the stopper spring 35, or can be rotated independently of the urging force of the stopper spring 35.
[0023]
When the disk stopper 23 is suddenly pushed by the disk 11, the disk stopper 23 rotates independently with respect to the stopper substrate 34, thereby avoiding damage to a connecting link mechanism including a cam main plate 38 to be described later. The
[0024]
The stopper substrate 34 is coupled to one end of a rotation link 36 rotatably supported on the chassis 16 by using pins 37. The other end of the rotary link 36 is engaged with the cam groove 39 of the cam main plate 38. As shown in FIG. 1, the cam sub-plate 50 integrated with the cam main plate 38 is pinned to the first link 41 of the first link 41, the second link 42, and the third link 43 that are pin-coupled to each other. 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.
[0025]
Accordingly, as shown in FIGS. 8 to 11, when the drive motor 40 is activated, the cam main plate 38 is moved via the gear train 45, the third link 43, the second link 42, the first link 41, and the sub cam plate 50. The rotary link 36 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 gently as described above, and an impact acts. And is gently guided to the chucking position α and positioned at the chucking position α.
[0026]
The rotating 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 connecting link mechanism and a slide member. The link mechanism including the drive motor 40 and the gear train 45 constitutes a drive system that drives the disk stopper 23 and the like.
[0027]
As shown in FIGS. 1 and 5, the sensor link 24 is positioned to face the disk arm 20 in the apparatus frame 15, and is pivotally supported on the side 32 of the chassis 16 via a pivot shaft 46. The A pin C capable of coming 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 portion. The tip end side of the sensor link 24 is urged by a link spring 48 as shown in FIG. The locking piece 47 can be locked to a first bending piece 51 of a link slider 49 that is pin-coupled to the cam main plate 38 and is provided so as to be relatively movable.
[0028]
When the disk 11 is inserted by the user's manual operation and comes into contact with the pin C, the sensor link 24 rotates against the spring biasing force of the link spring 48 and is pushed outward. When 47 is brought into contact with the first bending piece 51 of the link slider 49, further rotation is restricted. Since the rotation restriction of the sensor link 24 is performed 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. It functions as a position regulating member.
[0029]
Further, as described above, when the locking piece 47 of the sensor link 24 abuts on the first bending piece 51 of the link slider 49, the sensor link 24 rotates to a 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 detection means for starting the drive motor 40. Accordingly, the drive motor 40 is activated 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.
[0030]
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 / ejecting unit 12 configured as described above is a sensor link 24 in which the rotation is restricted. In a state where the position is regulated by the pin C and the disk stopper 23 that rotates outwardly, the pin C is pushed into the apparatus frame 15 by the spring biasing force from the disk arm 20 and the disk slider 19 and is conveyed 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 in without being suddenly pushed by the spring biasing force of the disk arm 20 and the disk slider 19, and smooth. Loading is performed.
[0031]
Next, the chucking / release unit 13 will be mainly described.
[0032]
As shown in FIGS. 1 and 2, the chucking / release unit 13 includes a disk spindle portion 53, an upper plate 17, a disk cover 18, and the drive system. It is attached to the turntable 54 or released.
[0033]
The disk spindle portion 53 is configured by integrating the turntable 54 (FIG. 16) and a spindle motor 55 that rotates the turntable 54, 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.
[0034]
The disk stopper 23 chucks the disk 11 by the action of the third link 43, the second link 42, the first link 41, the cam sub plate 50, the cam main plate 38, the rotation link 60, and the like by the rotation of the drive motor 40. After guiding 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 driving motor 40 that continues to rotate, and as shown in FIGS. The disk spindle 53 is moved up and down by the action of the 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, that is, the disk 11 positioned at the chucking position α is contacted and separated. It is possible. Thereby, the spindle unit 53 is configured to be movable relative to the pickup (not shown) that can read information from the recording surface 11A of the disk 11 or write information to the recording surface 11A.
[0035]
In the disk spindle portion 53, as shown in FIGS. 2 and 12, a guide post 63 as a guide member is inserted into the motor plate 56. The guide post 63 is erected on the apparatus frame 15 and guides the disc spindle portion 53 so that the disc spindle portion 53 moves up and down in parallel (horizontal). Further, as shown in FIGS. 12 and 13, the disk spindle portion 53 is in the first state before the engaging claws 57, 58, 59 are engaged with the cam grooves 60, 61, 62, respectively. When the bottom portion 64 of the link 41 abuts on the motor plate 56, the posture is held horizontally.
[0036]
As shown in FIGS. 12 and 16, the disc spindle portion 53 is provided with a disc holding portion 66 having a chucking claw 65 that can hold the center hole peripheral edge 11 </ b> B of the disc 11. The chucking claw 66 is provided so as to be able to advance and retreat by a spring biasing force, holds the center hole peripheral edge 11B of the disk 11 when advanced, and attaches the disk 11 to the turntable 54. When the disc 11 is mounted on the turntable 54, the upper plate 17 positioned at a position opposite to the disc spindle 53 with respect to the disc 11 functions as a receiving member.
[0037]
As shown in FIGS. 4 and 16, the upper plate 17 includes protrusions 67 protruding toward the disk 11 at positions where the disk 11 can come into contact. A tapered surface 67A is formed. Further, an insertion hole 68 through which the disc holding portion 66 can be inserted when the disc spindle portion 53 is raised and lowered is formed in the central portion of the convex portion 67.
[0038]
A taper surface 69 is formed on the disk 11 insertion side of the upper plate 17 so as to protrude outward toward the disk 11. Thereby, only the periphery of the disk 11 contacts 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 to prevent damage to the disk 11.
[0039]
The disk 11 positioned at the chucking position α is mounted on the turntable 54 by using the disk holding part 66 and the upper plate 17 by the above-described raising operation of the disk spindle part 53.
[0040]
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 and the center of the disk spindle portion 53 coincide with each other. The part 53 is in the lowest lowered position. When the disk spindle portion 53 is raised from the state shown in FIG. 16A, the disk holding portion 66 of the disk spindle portion 53 hits the disk 11, and the disk 11 comes into contact with the convex portion 67 of the upper plate 17. 11 is held between the disc holding portion 66 and the upper plate 17 (FIG. 16B).
[0041]
When the disk spindle 53 is further raised, 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 moves forward against the spring biasing force and then moves forward to hold the center hole peripheral edge 11B of the disk 11. As a result, 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 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. A gap is formed between the convex portion 67 (FIG. 16D). The state shown in FIG. 16D is a playable state of the disk drive device 10.
[0042]
Of the cam grooves 60, 61, 63 of the third link 43, the first link 51, and the cam sub plate 50, the shape of the cam groove 60 of the third link 43 is representatively shown in FIG. 15. When the locking claw 57 moves in the main inclined area 60A of the cam groove 60, the disk spindle 53 is raised (corresponding to FIG. 16B), and the locking claw 57 is the topmost area continuous with the main inclined area 60A. When it reaches 60B, the disk spindle 53 is further raised, and the disk holder 66 of the disk spindle 53 holds the center hole peripheral edge 11B of the disk 11 and mounts (chucking) the disk 11 (FIG. 16). (C)). When the locking claw 57 reaches the retreat area 64 continuous with the top area 60B, the disk spindle part 50 is lowered, and a gap is formed between the disk 11 mounted on the turntable 54 and the upper plate 17. Thus, a playable state position is obtained (corresponding to FIG. 16D).
[0043]
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 provided on the roller 72 provided on the third link 43. Placed. At the same time as the extending portion 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 placed on the roller 74 provided on the cam sub-plate 50, as shown in FIG. 14. Placed. These rollers 72 and 74 are loosely fitted to the pins 73 and 75 implanted in the third link 43 and the cam sub plate 50, respectively, and holding means for holding the disk spindle portion 53 in a playable state position. It is. This holding means may be only the pins 73 and 75.
[0044]
In the playable state position of the disk spindle portion 53, the extending portion 71 is placed on the roller 72, and the portion near the locking claw 59 of the motor plate 56 is placed on the roller 74 to maintain the state. If the playable state position is maintained by the engagement of 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 cam grooves 60, 61 and 62 are worn. This is because the position may change and the relative position with respect to the pickup may shift. As a result, the disk drive device 10 can function as a DVD player.
[0045]
As described above, when the disk spindle portion 53 reaches or reaches the playable state position, the above-described loading / ejection unit 12 is operated by the driving force of the drive motor 40 that continues to rotate, and FIGS. As shown, the sensor link 24, the disk stopper 23, and the disk arm 20 are retracted from the disk 11.
[0046]
That is, when the link slider 49 slides with the cam main plate 38 by the driving force of the driving motor 40 after the disk 11 is mounted on the turntable 54 by the disk holding section 66 of the disk spindle section 53, as shown in FIG. First, the rotation restriction of the sensor link 24 due to the first bent piece 51 of the link slider 49 engaging the engaging piece 47 of the sensor link 24 is released. Next, the second bending piece 52 of the link slider 49 presses the foremost piece 76 of the sensor link 24 to rotate the sensor link 24 against the spring biasing force of the link spring 48. As a result, the pin C at the base end of the sensor link 24 is moved away from the disk 11 and retracted.
[0047]
Further, as described above, when the link slider 49 slides together with the cam main plate 38 by the driving force of the drive motor 40, the rotary link 39 is rotated by being pushed by the cam groove 39 of the cam main plate 38 as shown in FIG. The disk arm 20 is moved in a direction away from the disk 11 and retracted from the disk 11 via the pin 37 of the stopper substrate 34.
[0048]
Similarly, after the disc 11 is mounted on the turntable 54 by the disc holding portion 66 of the disc spindle portion 53, when the third link 43 slides by the driving force of the drive motor 40 as shown in FIG. The tongue piece 77 formed at 43 is engaged with the engagement piece 78 of the disk arm 20 and rotates the disk arm 20 against the spring biasing force of the arm spring 31. As a result, the pin B of the disk arm 20 moves away from the disk 11 and retracts.
[0049]
In this way, the disk 11 is mounted (chucked) on the turntable 54 of the disk spindle portion 53 so that the disk spindle portion 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 while being retracted from the disk, and the information is read from the recording surface 11A of the rotating disk 11 by the pickup, or the information is written on the recording surface 11A, and the play is executed. The
[0050]
The release operation of the disc 11 that is normally executed after execution of the play is performed using the chucking / release unit 13, and the eject operation of the disc 11 is executed using the loading / eject unit 12.
[0051]
As shown in FIG. 20, the disk cover 18 serving 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 53. Placed on the side. As shown in FIG. 3, the disc cover 18 includes a throttle portion 79 at the center position, and the throttle portion 79 can lock the center hole peripheral portion 11 </ b> C of the disc 11 other than the recording surface 11 </ b> A of the disc 11. And
[0052]
The disk cover 18 is formed with a tapered surface 80 around the throttle portion 79 to prevent the disk 11 from being damaged by the throttle portion 79. A tapered surface 81 is formed on the disk 11 insertion side of the disk cover 18 so as to protrude outward toward the disk 11 side. Due to the tapered surface 81, only the periphery of the disk 11 contacts 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, the disk cover 18 is coated on the disk 11 side to prevent damage to the disk 11.
[0053]
As shown in FIG. 20, the disk 11 is locked to the disk cover 18 and released from the turntable 54 by the lowering operation (moving operation in the release direction) of the disk spindle 53 with the disk 11 mounted on the turntable 54. .
[0054]
That is, if the drive motor 40 is rotated in the direction opposite to that at the time of chucking in a state where the disk spindle portion 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 disk 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. To do. During the descending process of the disk spindle portion 53, the center hole peripheral portion 15C of the disk 11 mounted on the turntable 54 comes into contact with and is locked by the throttle portion 79 of the disk cover 18 (FIG. 20B). Further, when the disk spindle 53 is lowered, the disk 11 is left on the diaphragm 79, and only the disk spindle 53 is lowered, and the disk 11 is released from the turntable 54 (FIG. 20C).
[0055]
As shown in FIG. 2, the ejecting operation of the disk 11 using the loading / ejecting unit 12 is performed by the driving force of the driving motor 40 that continuously rotates in the reverse direction.
[0056]
That is, the driving force of the drive motor 40 is transmitted to the rotary 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 this rotation. 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. As a result, the disk 11 is ejected out of the disk drive device 10 against the spring biasing force of the arm spring 31 acting on the disk arm 20 and the slide spring 27 acting on the disk slide 19.
[0057]
With the configuration as described above, the following effects (1) to (10) are achieved according to the above embodiment.
[0058]
(1) The disk slider 19 is provided with a pin A that can be brought into contact with the periphery of the disk 11, the disk 11 can be pushed in by using this pin A, and the disk arm 20 can be brought into contact with the periphery of the disk 11. Since the disc B can be pushed into the apparatus frame 15 using the pin B, the disc slider 19 and the disc arm 20 that convey the disc 11 come into contact with the recording surface 11A of the disc 11. There is nothing. As a result, it is possible to reliably prevent the recording surface 11A from being damaged and foreign matter from being attached.
[0059]
(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 is pinned 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 B, parts (motors and gear trains) for driving the transport rollers, the transport belt, etc. 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.
[0060]
(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 23 transports (ejects) the disk 11 out of the apparatus frame 15 by the driving force of the drive motor 40, so that the operability during loading of the disk 11 can be improved.
[0061]
(4) A disk spindle 53 having a turntable 54 for mounting the disk 11 and a spindle motor 55 for rotating the turntable 54 moves relative to the disk 11 positioned at the chucking position α, and the pickup is Since it is fixed, only the disk spindle portion 53 that gets in the way when loading the disk 11 can be raised and lowered, so that dead space can be reduced. From this point also, the disk drive device 10 can be reduced in size and thickness. .
[0062]
(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 the retraction area 60 </ b> A of the cam groove 60 of the third link 43 and the cam groove 62 of the cam sub-plate 50. The extending portion 71 extending from the locking claw 57 is placed on the roller 72 at a position where it engages with the retraction area, and the vicinity of the locking claw 59 in the motor plate 56 is placed on the roller 74, 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 disk spindle portion 53 with respect to the pickup at the playable state position can be ensured accurately. 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 portion 53 and the pickup is important.
[0063]
Furthermore, even if the cam grooves 60 and 62 are worn by the locking claws 57 and 59, respectively, the playable state position of the disc spindle portion 53 can be ensured accurately, so that the disc spindle portion 53 is in a narrow space. Problems such as inadvertent contact with other parts can be avoided.
[0064]
(6) A disk spindle portion 53 having a turntable 54 is provided so as to be able to contact 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 portion 53 with the disk 11 as a boundary. When the disk spindle 53 is placed close to the disk 11 and pressed against the upper plate 17, 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. For this reason, the operability of mounting (chucking) the disk 11 to the turntable 54 can be improved.
[0065]
(7) When the disk spindle 53 approaches the disk 11 and presses the disk 11 against the upper plate 17, the center hole peripheral edge 11 </ b> B of the disk 11 is engaged with the chucking claw 65 of the disk holding section 66 by the pressing reaction force. Since the disk 11 is mounted on the turntable 54 and chucked, clamping is not required, and the disk drive device 10 can be reduced in size and thickness.
[0066]
(8) The position of the disk arm 20 that pushes the inserted disk 11 into the chucking position α, the disk stopper 23 that holds the disk 11 and guides it to the chucking position α, and the disk 11 that moves to the chucking position α is regulated. Since 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 on the turntable 54 (chucking), it is preferable with a simple structure. The disk arm 20, the disk stopper 23, and the sensor link 24 can be retracted from the disk 11.
[0067]
(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 disc 11 is removed from the disc holding portion 66 of the disc spindle portion 53 and the disc is released from the turntable 54, so that it is not necessary for the user to manually release the disc 11 from the turntable 54. The operability can be improved.
[0068]
(10) The disc spindle 53 is provided so as to be movable in the axial direction with respect to the disc cover 18 for releasing the disc 11 mounted on the turntable 54, and a mechanism for lifting the clamper ring, a mechanism for lifting the disc, etc. Since it becomes unnecessary, the disk drive device 10 can be reduced in size and thickness.
[0069]
As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to this.
[0070]
【The invention's effect】
As described above, according to the loading mechanism of the disk drive apparatus according to the present invention, it is possible to prevent foreign matter from attaching to the recording surface of the disk and the occurrence of scratches. Further, according to the loading mechanism of the present disk drive device, the disk drive device can be reduced in size and thickness.
[Brief description of the drawings]
1A and 1B show main components in a loading / ejecting unit of a disk drive device, where FIG. 1A is a front view, FIG. 1B is a rear view, FIG. 1C is a front view, 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. FIG.
3 shows the disk cover of FIG. 1, in which (A) is a front view, (B) is a cross-sectional view taken along line IIIB-IIIB in FIG. 3 (A), and (C) is a front view.
4 shows the upper case of FIG. 1, (A) is a front view, (B) is a cross-sectional view taken along line IVB-IVB in FIG. 4 (A), and (C) is IVC- in FIG. 4 (A). It is sectional drawing which follows an IVC line.
FIGS. 5A and 5B show the periphery of the sensor link, the rotation link, and the main cam plate of FIG. 1, in which FIG. 5A is a front view and FIG. 5B is a left side view.
6 is a front view showing a disk insertion start state by the loading mechanism of FIG. 1; FIG.
7 is a front view showing an operation at the start of loading (conveying) of a disk in the loading mechanism of FIG. 1; FIG.
8 is a front view showing an operation when the drive motor is activated in the loading mechanism of FIG. 1; FIG.
FIG. 9 is a front view showing a part of the disk loading operation (part 1) by the loading mechanism of FIG. 1;
FIG. 10 is a front view showing the second part of the disk loading operation by the loading mechanism of FIG. 1;
11 is a front view showing a completion state (chucking position state) of a disk loading operation by the loading mechanism of FIG. 1;
12 shows an initial position of the disk spindle portion of FIG. 2, (A) is a front view, and (B) is a right side view.
13A and 13B show the ascending start position of the disk spindle portion of FIG. 2, wherein FIG. 13A is a front view, and FIG. 13B is a right side view.
14 shows the lift end position of the disk spindle portion of FIG. 2, (A) is a front view, and (B) is a right side view.
15 shows the relationship between the cam groove of the third link in FIG. 12 to FIG. 14 and the locking piece of the disk spindle part, (A) corresponds to FIG. 13, and (B) corresponds to FIG. FIG.
FIG. 16 is a side view mainly showing the chucking operation of the disk executed by raising and lowering the disk spindle part.
17 is a front view showing a play position state in the loading mechanism of FIG. 1; FIG.
FIGS. 18A and 18B show the operation of the sensor link by the link slider of FIG. 5, and FIGS. 18A and 18B are a front view and a left side view up to the disk chucking position, and FIGS. It is the front view in a state, and a left view.
FIGS. 19A and 19B show the operation of the disk arm by the third link of FIG. 17, (A) and (B) are a front view up to the chucking position, a right side view, and (C) and (D) are in the play position state. It is a front view and right side view.
FIG. 20 is a side view showing a disc release operation executed by raising and lowering a disc spindle part.
[Explanation of symbols]
10 Disk drive device
11 discs
11A Recording surface
11B Center hall edge
11C peripheral edge of center hole
12 Loading and ejecting unit
13 Chucking Release Unit
14 Chassis unit
15 Device frame
16 Chassis
17 Upper plate
18 Disc cover
19 Disc slider
20 Disc arm
23 Disc stopper
24 Sensor link
25 Disc 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 bending piece
53 Disc spindle
54 Turntable
55 Spindle motor
56 Motor plate
57, 58, 59 Locking piece
60, 61, 62 Cam groove
66 Disc holder
67 Convex
68 Insertion hole
71 Extension
72, 74 rollers
76 cutting edge
77 Tongue
79 Aperture
A, B, C pins
α Chucking position

Claims (5)

In the loading mechanism of the disk drive device that conveys the inserted disk to the chucking position,
On the disk insertion side of the apparatus frame, it is provided movably in a state of being spring-biased along the insertion side, and has a pin A that can contact the periphery of the disk,
On the side of the apparatus frame adjacent to the disk insertion side, a pin B that can contact the periphery of the disk is provided at the tip, and a disk arm that is rotatably provided in a spring-biased state is provided. And
When the disc is inserted, the pin A and the pin B are spread by the disc, and after the center of the disc passes through a straight line connecting the pin A and the pin B, the pin A and the pin B are caused by a spring biasing force. A loading mechanism for a disk drive device, wherein the disk is pushed into the device frame.   A disk stopper capable of abutting on the periphery of the disk is rotatably provided opposite to the disk insertion side in the apparatus frame, and the disk is positioned at the chucking position by the rotation of the disk stopper. The loading mechanism of the disk drive device according to claim 1, wherein Opposite to the disk arm in the apparatus frame, a sensor link having a pin C capable of abutting on the periphery of the disk is rotatably provided. When the disk is inserted, the pin C is conveyed to the chucking position. The loading mechanism of the disk drive device according to claim 2 , wherein the loading mechanism is configured to regulate a position. 4. The loading mechanism for a disk drive device according to claim 3, wherein the sensor link is configured to activate a drive system for rotating the disk stopper when the sensor link is rotated to a position for regulating the disk. The pin A, the pin B, the pin C, and the disc stopper are configured to be retracted from the disc by the operation of the drive system after the disc is chucked on the turntable at the chucking position. Item 5. The loading mechanism of the disk drive device according to Item 3 or 4 .

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