JP4845689B2 - Disk unit - Google Patents

Description

  The present invention relates to a disk device in which a mechanism unit having a disk rotation drive unit is elastically supported in an external chassis when the disk is driven.

  In the disk device described in Patent Document 1 below, a drive chassis having a rotation drive unit that rotates a disk is provided inside the external chassis, and when the disk is driven, the drive chassis is elastic inside the external chassis. Supported.

  In this disk apparatus, a first slider and a second slider that move in the front-rear direction are provided on both sides of the external chassis, and both sliders are connected by a link mechanism and moved in synchronization.

  During standby when the disk is not inserted into the apparatus main body, the first slider and the second slider are at the farthest back position of the external chassis. At this time, each lock pin provided in the drive chassis is locked in the lock hole of the lock slider provided in connection with the cam groove of the first slider and the second slider, and further provided on the bottom surface of the external chassis. The center lock lever is locked on the lock arm. Therefore, when the disk is carried toward the rotation drive unit, the drive chassis having the rotation drive unit is restrained inside the external chassis.

When the disk is loaded in the rotary drive unit, the first slider and the second slider move forward in synchronization with each other, the restraint on the respective lock pins provided on the drive chassis is released, and the drive chassis is moved into the external chassis. It is elastically supported by a damper. Thereby, the influence with respect to a drive chassis, such as a vehicle body vibration, is reduced.
JP 2003-331494 A

  In the disk device described in Patent Document 1, a center lock lever for locking a lock pin provided on the lower surface of the drive chassis is provided separately from the link mechanism for operating the first slider and the second slider. The lock lever is linked to the link mechanism. This complicates the structure of the mechanism that locks the drive chassis.

  In addition, the lock pins provided on the left and right sides of the drive chassis are locked at two locations: a cam groove provided in the first slider and a lock hole provided in the lock slider connected to the second slider. Therefore, the balance of the restraining force with respect to the chassis of the drive chassis is poor and the lock of the drive chassis is unstable.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and provides a disk device that can reliably and stably restrain a mechanism unit having a rotation drive unit that rotates a disk with respect to an external chassis with a simple structure. It is intended to provide.

The present invention includes an external chassis provided with a first side plate and a second side plate facing each other , and a mechanism unit supported via an elastic support member between the first side plate and the second side plate. In the disk device in which the mechanism unit is equipped with a rotation drive unit for driving the disk,
The mechanism unit includes a protruding lock member that protrudes toward the first side plate, a rotation lock member that rotates inside the second side plate, and the protruding lock member that protrudes outward from the mechanism unit. A drive mechanism is mounted to move the projecting posture and the retracting posture to rotate, and to rotate the rotation lock member in synchronism with this .
The first side plate is formed with a locking inclined surface that is inclined toward the mechanism unit toward the first direction, and the second side plate protrudes toward the mechanism unit. Convex is provided,
When the disk is transported toward the rotation drive unit, the protruding lock member is in the protruding posture and is abutted against the locking inclined surface, and the rotation lock member is rotated in the first direction. The mechanism unit is restrained so as not to move in the first direction with respect to both the first side plate and the second side plate by moving and abutting against the locking convex portion. To do.

The disk device of the present invention is restrained so that the mechanism unit does not move in both the projecting direction and the first direction of the projecting lock member when the projecting lock member hits the locking inclined surface. Further, as the rotation lock member rotates, the mechanism unit is similarly restrained in the first direction .

Further, in the present invention, sliders are provided on both side portions of the mechanism unit, and constraining recesses are formed in each slider,
When the disk is transferred toward the rotational drive unit, the respective sliders move, and the convex portions provided on the first side plate and the second side plate are held in the restraining concave portion, and the mechanism The unit can be configured to be restrained from moving in a second direction opposite to the first direction .

  In the above configuration, the direction in which the mechanism unit is restrained by the convex portion and the restraining concave portion provided in the external chassis and the direction in which the mechanism unit is restrained by the protruding lock member and the locking inclined surface are opposite to each other. The unit is securely restrained.

Further, according to the present invention, the peripheral portion of the constraining recess protrudes toward the first side plate and the second side plate , and when the constraining recess holds the convex portion, the peripheral portion is The mechanism unit is constrained in the extending direction of the convex portion by abutting against a step portion provided at the base of the convex portion.

  In the above configuration, the mechanism unit is reliably restrained in the projecting direction of the projecting lock member by both the projecting lock member abutting against the external chassis and the peripheral portion contacting the step.

Further, in the present invention, the mechanism unit is provided with a link mechanism that moves the sliders on both sides synchronously, and the link mechanism is operated by the drive mechanism,
It is preferable that the protruding lock member is constituted by a part of a link constituting the link mechanism, and the rotation lock member is rotated by a moving force of the link mechanism.

In the above arrangement, when the driving mechanism through a link mechanism has two sliders are operated, projecting locking member which is part of the link mechanism protrudes, also is rotated locking member provoking rotated by the link mechanism. Therefore, it is possible to restrain the mechanism unit in each direction with one drive source.

  In the disk device of the present invention, the mechanism unit equipped with the rotation drive unit for rotating the disk can be reliably restrained in the external chassis by a simple structure.

  FIG. 1 is a bottom view showing a mechanism unit provided in a disk device according to an embodiment of the present invention with the bottom surface facing the front side of the drawing. 2A is a left side view of the mechanism unit, and FIG. 2B is a right side view of the mechanism unit, both of which are shown with the upper surface facing upward. 3A and 3B are perspective views of the lower base of the external chassis as viewed from different directions with the upper end facing upward. 4 is a partial cross-sectional view of the engagement state between the constraining concave portion provided in the slider and the convex portion provided in the external chassis, as viewed from the same direction as FIG. 1, and FIG. 5 is a protruding lock member provided in the link mechanism. FIG. 6 is a partial perspective view of the locking portion between the lock rotation member and the lower base as viewed from the upper surface side, and FIG. It is a fragmentary perspective view which shows a part of mechanism which raises / lowers a drive base with the bottom face facing up. 8 to 10 are explanatory diagrams of the operation.

  In all drawings, the illustrated X1 direction is the right direction, the X2 direction is the left direction, the Y1 direction is the front, the Y2 direction is the rear, the Z1 direction is the upward direction, and the Z2 direction is the downward direction. FIG. 1 is a bottom view showing the Z2 direction toward the front side of the page.

  The disk device 1 can be loaded with a disk such as a DVD (digital versatile disk). The disk device 1 has an external chassis that is sufficiently thinner than the 1DIN size of in-vehicle equipment. The external chassis is composed of a lower base 7 shown in FIGS. 3A and 3B and an upper base superimposed on the lower base 7. The mechanism unit 2 shown in FIG. 1 is housed inside the lower base 7 and the upper base. On the Y1 side of the external chassis, a nose portion having a liquid crystal display panel and various switches (not shown) is provided, and a slit-like insertion port extending in the width direction (X direction) is provided in the nose portion. .

  As shown in FIG. 1, the mechanism unit 2 is provided with two transport rollers 6A and 6B as transport means, and the disk D is transported in the Y2 direction from the insertion port by the transport rollers 6A and 6B, and the Y1 direction. It is carried out to.

  A bottom chassis 12 appears on the bottom side of the mechanism unit 2 shown in FIG. 1, and a drive base 8 is provided from the center to the rear (Y2 direction) area of the bottom chassis 12. As shown in FIGS. 2A and 2B, a clamp base 9 is opposed above the drive base 8 (Z1 side). A top chassis 10 is provided in front of the clamp base 9, and both side portions of the top chassis 10 are fixed to the bottom chassis 12. The unit chassis of the mechanism unit 2 is constituted by the top chassis 10 and the bottom chassis 12, and the disk D is inserted into the space between the top chassis 10 and the bottom chassis 12 by being inserted from the insertion slot.

  As shown in FIG. 1, a rotational drive unit 4 is provided at the tip of the drive base 8 on the Y1 side. As shown in FIGS. 2A and 2B, in the rotation driving unit 4, the spindle motor 5 is fixed on the drive base 8, and the turntable is fixed to the rotation shaft of the spindle motor 5. . As shown in FIG. 1, the drive base 8 is provided with a head portion 17. The head portion 17 is guided by guide shafts 16 and 16 fixed to the drive base 8 so as to be movable along the recording surface of the disk D placed on the turntable. The drive base 8 is provided with a sled driving mechanism that moves the head portion 17 in the radial direction of the disk D.

  As shown in FIGS. 2 (A) and 2 (B), a clamper 11 is provided on the lower surface of the tip portion on the Y1 side of the clamp base 9 so as to face the turntable of the rotation drive unit 4. Is supported rotatably. As shown in FIG. 1, support bases 8c and 8c are provided on both sides in the X1 direction and the X2 direction at the base on the Y2 side of the drive base 8, and shafts 9a and 9a are provided on the support pieces 8c and 8c, respectively. It is fixed (in FIG. 1, only the shaft 9a on the X1 side is shown). The base end portion on the Y2 side of the clamp base 9 is rotatably supported by the shafts 9a and 9a.

  The shaft 9a is provided with a pressing biasing member (not shown) formed of a torsion coil spring. By the urging force of the pressing urging member, the clamp base 9 is urged to rotate about the shafts 9a and 9a, and the clamper 11 is always urged in a direction to be pressed against the turntable.

  On the other hand, the shaft pin 8a1 and the shaft pin 8a2 shown in FIG. 1 are fixed to both sides of the base end portion on the Y2 side of the drive base 8. A support piece 10a bent vertically downward (Z2 direction) is formed on the X1 side of the top chassis 10, and the shaft pin 8a1 is rotatably supported by the support piece 10a. The bottom chassis 12 is also formed with a support piece 12a bent downward, and the shaft pin 8a2 is rotatably supported by the support piece 12a.

  Therefore, the drive base 8 is rotatably supported by a unit chassis including the top chassis 10 and the bottom chassis 12 with the shaft pins 8a1 and 8a2 as fulcrums, and the clamp base 9 is located behind the drive base 8 in the drive The base 8 is rotatably supported.

  The drive base 8 has a drive posture parallel to the top chassis 10 and the bottom chassis 12, and a disc having an inclined posture in which the Y1 side having the rotation drive unit 4 is lowered in the Z2 direction as shown in FIGS. Rotates between standby positions. Further, the clamp base 9 rotates between a clamp posture in which the clamper 11 is pressed against the turntable and a clamp release posture in which the clamper 11 is inclined so as to face upward.

  As shown in FIG. 1, detection pins 26 and 26 are provided at the front end of the top chassis 10 on the Y1 side. As shown in FIG. 1, the detection pins 26, 26 are in positions close to each other and are biased in the approaching direction. When the disk D is inserted from the insertion port in the Y2 direction, the detection pins 26 and 26 are moved away from each other by the outer peripheral edge of the disk D. When the detection pins 26 and 26 move away from each other, it is detected that the disk D is inserted. When the disk D is ejected and the detection pins 26 and 26 return to the approaching position, it can be detected that the disk D has been completely removed.

  As shown in FIG. 1, a left side slider 3A is provided on the left side of the top chassis 10, and a right side slider 3B is provided on the right side. As shown in FIG. 2A, long guide holes 41 and 42 extending in the Y1-Y2 direction are formed in the left slider 3A. Side plates bent in the Z2 direction are provided on both sides of the top chassis 10, and support shafts 51 and 52 are fixed to the side plates. When the guide long holes 41 and 42 slide on the support shafts 51 and 52, the left slider 3A is movable in the Y1-Y2 direction. As shown in FIG. 2B, guide long holes 43 and 44 extending linearly in the Y1-Y2 direction are also formed in the right slider 3B. By sliding the guide elongated holes 43 and 44 on the support shafts 53 and 54 fixed to the side plate of the top chassis 10, the right side slider 3B is movable in the Y1-Y2 direction.

  As shown in FIG. 1, a switching motor M is provided in the bottom chassis 12 at the left rear of the mechanism unit 2, and a gear group H that decelerates and transmits the power of the switching motor M is provided on the bottom surface of the bottom chassis 12. Is provided. A shaft 21 is fixed to the left side of the bottom chassis 12, and a drive member 20 is rotatably provided on the shaft 21. The power of the switching motor M is transmitted to the drive member 20 via the gear group H, The drive member 20 is rotationally driven. The drive member 20 is provided with a drive protrusion 20a, and the drive protrusion 20a is engaged with the left slider 3A.

  When the drive member 20 is rotated by the power of the switching motor M, the left slider 3A is linearly moved in the Y1 direction and the Y2 direction by the drive protrusion 20a integrated with the drive member 20. Therefore, the switching motor M, the gear group H, and the drive member 20 constitute a drive mechanism.

  As shown in FIG. 1, a link mechanism 30 that connects the left side slider 3 </ b> A and the right side slider 3 </ b> B is provided on the lower surface of the bottom chassis 12. The link mechanism 30 is provided with a slider link 31. Guide long holes 31a, 31a extending in the X1-X2 direction are formed in the slider link 31, and the guide long holes 31a, 31a are inserted into guide protrusions 12b, 12b formed by bending downward from the bottom chassis 12, The slider link 31 is supported so as to be movable in the X1 direction and the X2 direction. The driving member 20 is provided with a connecting pin 20 b, and this connecting pin 20 b is locked in an elongated hole formed in the slider link 31.

  The end of the slider link 31 facing the X2 side is one protruding lock member 33 located on the X2 side. That is, in this embodiment, a part of the slider link 31 is one protruding lock member 33. As shown in FIG. 1, a contact portion 33a is formed at the tip of the protruding lock member 33 by an inclined portion directed toward the Y1 side.

  A reverse link 32 is provided on the right side of the bottom surface of the bottom chassis 12. The reverse link 32 is rotatably supported on a shaft 32 a fixed to the lower surface of the bottom chassis 12. A connecting pin 32 b is fixed to the reverse link 32, and the connecting pin 32 b is hooked in an elongated hole formed in the slider link 31. A driving protrusion 32c is integrally formed on the reverse link 32, and the driving protrusion 32c is hooked on the right side slider 3B.

  In the operation state shown in FIG. 1, the driving member 20 is rotated counterclockwise, and the left slider 3 </ b> A is moved in the Y <b> 2 direction by the driving protrusion 20 a formed integrally with the driving member 20. At this time, the slider link 31 is moved in the X2 direction by the counterclockwise turning force of the driving member 20, and the reverse link 32 is rotated in the clockwise direction by the slider link 31. Therefore, the right slider 3B is also moved in the Y2 direction by the drive protrusion 32c of the reverse rotation link 32.

  As shown in FIG. 8, when the drive member 20 is rotated clockwise by the switching motor M, the left slider 3A is moved in the Y1 direction by the drive protrusion 20a integrated with the drive member 20. Further, the slider link 31 moves in the X1 direction, the reverse rotation link 32 is rotated counterclockwise, and the right slider 3B is moved in the Y1 direction by the drive protrusion 32c provided on the reverse rotation link 32. That is, by providing the link mechanism 30, the left side slider 3A and the right side slider 3B are synchronously driven together in the same Y1 direction and the same Y2 direction.

  As shown in FIG. 1, a shaft 35b is fixed to the lower surface of the bottom chassis 12 on the X1 side, and the rotation lock member 35 is rotatably supported by the shaft 35b. A connection pin 35 a is fixed to one arm portion of the rotation lock member 35, and the connection pin 35 a is inserted into an elongated hole formed in the reverse rotation link 32. The other arm portion of the rotation lock member 35 is a protruding lock member 35c on the X1 side, and a contact portion 35d is integrally provided at the tip portion thereof.

  As shown in FIG. 1, when the drive member 20 is rotated counterclockwise, the slider link 31 is moved in the X2 direction, and the protruding lock member 33 formed integrally with the X2 side of the slider link 31. However, it protrudes further in the X2 direction from the X2 side portion of the drive unit 2. At this time, since the reverse rotation link 32 is rotated in the clockwise direction, the rotation lock member 35 is rotated in the counterclockwise direction, and the protruding lock member 35c formed integrally with the rotation lock member 35 is provided. Further, it protrudes further in the X1 direction from the side portion of the mechanism unit 2 on the X1 side.

  As shown in FIG. 8, when the drive member 20 rotates clockwise, the slider link 31 moves in the X1 direction, and the protruding lock member 33 integrated therewith retracts in the X1 direction. Further, the reverse rotation link 32 is rotated counterclockwise, whereby the rotation lock member 35 is rotated clockwise, and the protruding lock member 35c integrated with the rotation lock member 35 is retracted in the X2 direction.

  As shown in FIGS. 1, 8, and 7 and 10, a control plate 31b is provided at the center of the slider link 31. The control plate 31b is bent at a right angle from the edge on the Y2 side. A control pin 31c protruding in the Y2 direction is provided on the control plate 31b. An elongated hole-shaped posture switching cam 8b is formed at the end of the drive base 8 on the Y1 side, and the control pin 31c is inserted into the posture switching cam 8b. As shown in FIGS. 7 and 10, the posture switching cam 8b is a lifting portion 8b1 having an end on the X1 side directed toward the Z2 side, and an end on the X2 side is closer to the Z1 side than the lifting portion 8b1. It is the pushing-down part 8b2 located in.

  1 and FIG. 7, the slider link 31 is moved in the X2 direction, and the control pin 31c is also moved in the X2 direction. At this time, since the control pin 31c is positioned in the push-down portion 8b2 of the posture switching cam 8b, the drive base 8 is tilted with the tip portion having the rotation drive portion 4 pushed down with the shaft pins 8a1 and 8a2 as fulcrums. Thus, the disc standby posture (retracting posture) is obtained. As shown in FIGS. 8 and 10, when the slider link 31 moves in the X1 direction, the control pin 31c moves into the lifting portion 8b1 of the attitude switching cam 8b, and the drive base 8 has a tip portion having the rotation drive portion 4. Is lifted, and the drive base 8 is in the same horizontal orientation as the bottom chassis 12 and assumes a drive posture.

  As shown in FIG. 2B, a clamp lifting cam 45 is integrally formed at a portion of the right slider 3B that is closer to the Y2 side. The clamp lifting cam 45 has a lifting portion 45a on the Y1 side, and a relief space 45b is formed on the Y2 side. In the operation state of FIGS. 1 and 2B, the right side slider 3B is moved in the Y2 direction, and the control piece 9b integrated with the clamp base 9 is lifted by the lifting portion 45a of the clamp lifting cam 45. The clamper 11 is in a clamp release posture away from the turntable upward.

  That is, in the operation state shown in FIG. 1, since the slider link 31 is moved in the X2 direction, as shown in FIG. The distance between the turntable of the rotary drive unit 4 and the clamper 11 is increased by being lifted.

  As shown in FIG. 8, when the right side slider 3B moves in the Y2 direction, the control piece 9b integrated with the clamp base 9 shown in FIG. 2B is positioned in the escape space 45b. Is urged in the Z2 direction by the pressing urging member. At this time, as shown in FIG. 10, the drive base 8 is lifted into the drive posture, so that the center hole of the disc can be held by the turntable and the clamper 11 provided in the rotation drive unit 4.

  As shown in FIG. 2A, a pair of roller control cams 46 are formed through the portion of the left slider 3A that is closer to the Y1 side. The roller control cam 46 is formed with a push-down portion 46a on the Y2 side and a relief space 46b on the Y1 side. The roller shaft 6A1 of the transport roller 6A and the roller shaft 6B1 of the transport roller 6B are inserted into the roller control cam 46, respectively. The roller control cam 46 is also formed symmetrically with the left slider 3A on the right slider 3B. As shown in FIGS. 1 and 2A, when the left side slider 3A and the right side slider 3B are moved in the Y2 direction, the roller shaft 6A1 and the roller shaft 6B1 are respectively separated from the clearance space 46b of the roller control cam 46. The conveyance roller 6A and the conveyance roller 6B are pressed against the disk D by an urging force such as a spring. As shown in FIG. 8, when the left slider 3A and the right slider 3B move in the Y1 direction, the roller shaft 6A1 and the roller shaft 6B1 are pushed down by the push-down portion 46a of the roller control cam 46, and the transport rollers 6A and 6B are moved. , Separated from the disk D.

  As shown in FIGS. 2A and 9, the left slider 3A is formed with a constraining recess 71 that opens in the Y2 direction and a constraining recess 72 that also opens in the Y2 direction. As shown in FIG. 2B, the right slider 3B is also formed with a constraining recess 73 that opens in the Y2 direction and a constraining recess 74 that also opens in the Y2 direction. As shown in FIG. 2A, the left slider 3A is formed with a peripheral raised portion 71a that protrudes from the Y1 end of the constraining recess 71 toward the X2 side. FIG. 4 shows the constraining recess 71 and the surrounding raised portion 71a in cross section. Similarly, the right side slider 3B shown in FIG. 2B is also provided with a peripheral raised portion 73a that protrudes from the end portion on the Y1 side of the constraining recess 73 toward the X1 side. In addition, a peripheral raised portion 74a that protrudes from the Y1 end of the constraining recess 74 toward the X1 side is integrally formed.

  As shown in FIG. 3, the lower base 7 constituting the external chassis is a frame body that is formed of a metal plate and side plates are formed on four sides. Support recesses S2 and S4 are formed in the left side plate 7A of the lower base 7, and support recesses S1 and S3 are formed in the right side plate 7B. A damper 70 shown in FIG. 1 is held in each of the support recesses S1 to S4. The damper 70 is an elastic support member in which oil is sealed in a flexible housing such as rubber. As shown in FIG. 1, in the mechanism unit 2, support protrusions are provided at four corners D <b> 1, D <b> 2, D <b> 3, D <b> 4 of the top chassis 10, and each support protrusion is supported by a damper support member 70. That is, the corner D2 of the top chassis 10 is supported by the damper 70 held in the support recess S2 of the left side plate 7A, and the corner D4 is supported by the damper 70 held in the support recess S4 of the left side plate 7A. Yes. Further, the corner portion D1 and the corner portion D3 are supported by dampers 70, 70 held by the support concave portions S1 and S3 of the right side plate 7B.

  In a state where the mechanism unit 2 is elastically supported through the four dampers 70 inside the lower base 7, the left slider 3A provided in the mechanism unit 2 faces the inside of the left plate 7A, and the right slider 3B faces the inside of the right side plate 7B.

  As shown in FIG. 3A, a convex portion 61a is formed on the left side plate 7A. As shown in FIG. 4, the convex portion 61a is integrally formed of a metal plate that forms the left side plate 7A. The base part of the convex part 61a is thick, and the step part 61b is formed in the boundary part of the convex part 61a and a base part. The left side plate 7A has a convex portion 62a on the Y2 side. As shown in FIG. 3B, the convex portion 64a and the convex portion 65a are also formed integrally on the right side plate 7B. A step 64b is formed at the base of the convex portion 64a, and a step 65b is also formed at the base of the convex portion 65a.

  As shown in FIG. 2A, the convex portion 61a of the left side plate 7A can be held by a constraining concave portion 71 provided on the left side slider 3A, and the convex portion 62a can be held by a constraining concave portion 72. As shown in FIG. 2B, the convex portion 64a of the right side plate 7B can be held by the restraining concave portion 73 of the right side slider 3B, and the convex portion 65a can be held by the holding concave portion 74.

  As shown in FIG. 3A, in the left side plate 7A, a locking projection 63 protruding in the X1 direction is formed at the middle between the projection 61a and the projection 62a. A locking inclined surface 63a that recedes in the X2 direction as it goes in the Y2 direction is formed on the side of the locking projection 63 on the Y2 side. As shown in FIG. 5, the protruding lock member 33 formed integrally with the slider link 31 at the side portion on the X2 side of the mechanism unit 2 can come into contact with the locking inclined surface 63a. As shown in FIG. 3B, in the right side plate 7B, a locking convex portion 66 protruding in the X2 direction is formed between the convex portion 64a and the convex portion 65a. The locking projection 66 is provided with a locking surface 66a facing in the Y1 direction. As shown in FIG. 6, the protrusion lock member 35c of the rotation lock member 35 provided on the X1 side of the mechanism unit 2 can contact the locking surface 66a.

Next, the operation of the disk device 1 will be described.
(Disc insertion standby mode)
In the insertion standby mode in which the disk D is waited for being loaded into the disk device 1, as shown in FIG. 1, the power of the switching motor M is transmitted from the gear group H to the drive member 20, and the drive member 20 is counterclockwise. It is rotating. The drive protrusion 20a of the drive member 20 moves the left slider 3A in the X2 direction, and the slider link 31 connected to the drive member 20 via the connecting pin 20b is moved in the X2 direction. Then, the reverse link 32 provided on the X1 side in FIG. 1 is rotated in the clockwise direction, and the right slider 3B is moved in the Y2 direction by the drive protrusion 32c of the reverse link 32.

  At this time, as shown in FIG. 2A, the roller shafts 6A1 and 6B1 of the transport rollers 6A and 6B are in the clearance spaces 46b and 46b of the roller control cams 46 and 46 formed on the left slider 3A. The conveying rollers 6A and 6B are elastically pressed against the lower surface of the sliding member 52 fixed to the lower side of the top chassis 10 by an urging force such as a spring.

  Further, as shown in FIG. 7, when the slider link 31 is moved in the X2 direction, the control pin 31 c fixed to the control plate 31 b formed on the slider link 31 is provided on the drive base 8. Located in the push-down portion 8b2 of the switching cam 8b, the drive base 8 is in a disk standby posture (retracted posture) in which the tip portion having the rotation drive portion 4 is lowered with the shaft pins 8a1 and 8a2 as fulcrums.

  Further, as shown in FIG. 2B, the control piece 9b integrated with the clamp base 9 is lifted by the lifting portion 45a of the clamp lifting cam 45 formed on the right side slider 3B. Therefore, a large space is formed between the turntable provided in the rotation drive unit 4 of the drive base 8 and the clamper 11 provided in the clamp base 9.

  In the disc insertion standby mode, the mechanism unit 2 elastically supported by the external chassis via the damper 70 is restrained so as not to move within the external chassis. By restraining the mechanism unit 2, it is possible to prevent the mechanism unit 2 from inadvertently moving when the disk D is inserted from the outside, and it is possible to reliably guide the disk D to the rotation drive unit.

  In the disc insertion standby mode, as shown in FIG. 2 (A), the left slider 3A is moved in the Y2 direction, so that the restraint recess 71 provided in the left slider 3A is shown in FIG. 3 (A). The convex part 61a provided in the lower base 7 to be shown is held. At this time, as shown in FIG. 4, the convex portion 61 a is pressed against the end portion on the Y1 side of the constraining concave portion 71. This also applies to the relationship between the constraining concave portion 72 provided on the left slider 3A and the convex portion 62a. Further, as shown in FIG. 2B, since the right side slider 3B is moved in the Y2 direction, the convex portion 64a shown in FIG. 3B is provided in the constraining concave portion 73 provided in the right side slider 3B. The convex portion 65 a is held in the constraining concave portion 74. At this time, the convex portion 64a is pressed against the end portion on the Y1 side of the constraining concave portion 73, and the convex portion 65a is pressed against the end portion on the Y1 side of the constraining concave portion 74.

  Each of the constraining recesses 71, 72, 73, 74 holds the projections 61a, 62a, 64a, 65a provided in the lower base 7, so that the mechanism unit 2 is further in the Y2 direction in the lower base 7. It is restrained not to move. Further, the upper and lower inner width dimensions of the constraining recesses 71, 72, 73, and 74 and the diameter dimensions of the protrusions 61a, 62a, 64a, and 65a are substantially matched, so that the mechanism unit 2 is provided in the lower base 7. Is restricted so as not to move in the vertical direction (Z1-Z2 direction).

  Further, as shown in FIG. 4, when the left side slider 3A is moved in the Y2 direction, the peripheral raised portion 71a protruding from the periphery of the constraining concave portion 71 contacts the stepped portion 61b of the base portion of the convex portion 61a. . When the left side slider 3A moves in the Y1 direction, the peripheral raised portion 71a moves away from the step portion 61b. Similarly, when the right side slider 3B shown in FIG. 2 (B) is moved in the Y2 direction, the peripheral raised portion 73a protruding from the periphery of the constraining concave portion 73 abuts on the stepped portion 64b of the base portion of the convex portion 64a. The peripheral raised portion 74a protruding from the periphery of the constraining concave portion 74 abuts on the step portion 65b of the convex portion 65a.

  In this way, the peripheral raised portions 71a, 73a, 74a abut on the step portions 61b, 64b, 65b, so that the mechanism unit 2 does not move in the left-right direction (X1-X2 direction) in the lower base 7. Be regulated.

  Further, in the disc insertion standby mode shown in FIG. 1, the slider link 31 provided in the mechanism unit 2 is moved in the X2 direction, and as shown in FIG. A contact portion 33a, which is a portion, is in contact with a locking inclined surface 63a formed on the left side plate 7A. Further, at this time, as shown in FIG. 6, the rotation lock member 35 is rotated counterclockwise, and the contact portion 35d of the protruding lock member 35c, which is a part of the rotation lock member 35, is formed on the right side plate 7B. It is in contact with the formed locking projection 66.

  The mechanism unit 2 is restricted from moving in the Y1 direction in the lower base 7 by the contact between the protruding lock member 33 and the locking inclined surface 63a and the contact between the protruding lock member 35c and the locking projection 66. Is done.

  As described above, by operating the left side slider 3A, the right side slider 3B, and the link mechanism 30 with the common switching motor M, the mechanism unit 2 moves in the X, Y, and Z directions in the external chassis. Be restrained not to.

  In the embodiment described above, the protruding lock member 33 provided on the X2 side in FIG. 1 protrudes in the X2 direction along a linear locus, and the protruding lock member 35c provided on the X1 side rotates. Both the left and right protruding lock members may move along a linear locus in the X direction, or the left and right protruding lock members may rotate together.

(Disc loading operation)
When the disk D is inserted from the insertion slot, the detection pins 26 and 26 shown in FIG. 1 are pushed open by the outer peripheral edge of the disk D, and a switch (not shown) is operated. Thereby, the insertion of the disk D is detected, the motor is started, and the transport roller 6A and the transport roller 6B start to rotate in the disk loading direction. The inserted disk D is sandwiched between the transport rollers 6A and 6B and the sliding member and is carried in the apparatus back direction (Y2 direction).

  The loaded disk D is sent between the turntable provided in the rotation drive unit 4 and the clamper 11. When the detection means (not shown) detects that the center hole of the disk D coincides with the center of the turntable, the switching motor M rotates the drive member 20 shown in FIG.

  As a result, the left slider 3A is moved in the Y1 direction, and the slider link 31 is moved in the X1 direction. The moving force of the slider link 31 is given to the right side slider 3B via the reverse link 32, and the right side slider 3B is also moved in the Y1 direction.

  When the slider link 31 is moved in the X1 direction, as shown in FIG. 10, the control pin 31c provided on the control plate 31b of the slider link 31 switches the attitude provided on the end of the drive base 8 on the Y1 side. The cam 8b moves into the lifting portion 8b1, and the drive base 8 is lifted to assume a substantially horizontal driving posture. When the right side slider 3B shown in FIG. 2B moves in the Y1 direction, the escape space 45b of the clamp lifting cam 45 moves to the position of the control piece 9b integrated with the clamp base 9. Therefore, the clamp base 9 is lowered by the urging force of the pressing urging member, and the center hole of the disk D is sandwiched between the turntable provided in the rotation driving unit 4 and the clamper 11.

  Further, when the left side slider 3A and the right side slider 3B move in the Y1 direction, the roller shaft 6A1 and the roller shaft 6B1 are pushed down by the push-down portion 46a of the roller control cam 46, and the transport rollers 6A and 6B are moved from the lower surface of the disk D. Leave.

  As shown in FIG. 9, when the left slider 3A moves in the Y1 direction, the constraining concave portions 71 and 72 are separated from the convex portions 61a and 62a formed on the left side plate 7A. Similarly, when the right side slider 3B moves in the Y1 direction, the constraining concave portions 73 and 74 are separated from the convex portions 64a and 65a. Further, since the slider link 31 moves in the X1 direction, the protruding lock member 33 is separated from the locking inclined surface 63a of the left side plate 7A shown in FIG. 5, and the rotation lock member 35 shown in FIG. It rotates and the contact part 35d of the protrusion lock member 35c provided in the rotation lock member 35 leaves | separates from the latching convex part 66 of the right side board 7B shown in FIG.

  Therefore, the mechanism unit 2 is elastically supported by the damper 70 in the external chassis. In this state, the turntable and the disk D are rotated by the spindle motor 5 provided in the rotation driving unit 4, and the recording or reproducing operation for the disk D is performed by the head unit 17. Since the mechanism unit 2 is elastically supported, it is possible to suppress external vibrations acting on the external chassis from directly acting on the mechanism unit 2.

  As described above, in the above-described embodiment, the elastic support is provided by the operations of the left side slider 3A and the right side slider 3B that move on the left and right sides of the mechanism unit 2 and the operation of the link mechanism 30 provided at the bottom of the mechanism unit 2. The mechanism unit 2 can be restrained in the X, Y, and Z directions. Therefore, a thin disk device 1 can be configured.

It is a bottom view which shows the mechanism unit provided in the disc apparatus of the embodiment of the present invention with the bottom face toward the front side of the paper, and shows a disc insertion standby mode. (A) is a left side view of the mechanism unit, and (B) is a right side view of the mechanism unit, both showing an upper end upward. (A) (B) is a perspective view which shows the lower base which comprises an external chassis from different directions. The fragmentary sectional view which shows holding | maintenance operation | movement with a restraint recessed part and a convex part. The fragmentary perspective view which shows the contact state of the protrusion locking member provided in the X2 side of the mechanism unit, and a latching inclined surface, and shows a bottom part facing up. The partial perspective view which shows the contact state of the rotation-type protrusion locking member provided in the X1 side of the mechanism unit, and the right side board, and shows the bottom part upward. The partial perspective view which shows the state in which the drive base is falling with the bottom part facing up. FIG. 2 is a bottom view similar to FIG. 1 and shows a disk drive mode. FIG. 3 is a left side view similar to FIG. 2 (A), showing a disk drive mode. FIG. 8 is a partial perspective view similar to FIG. 7, showing a state where the drive base is raised.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disk apparatus 2 Mechanism unit 3A Left side slider 3B Right side slider 4 Rotation drive part 5 Spindle motor 7 Lower base 7A Left side plate 7B Right side plate 8 Drive base 9 Clamp arm 10 Top chassis 11 Clamper 12 Bottom chassis 20 Drive member 30 Link mechanism 31 Slider link 31c Posture switching pin 32 Reverse link 33 Projection lock member 35 Rotation lock member 35c Rotation lock members 61a, 62a, 64a, 65a Protruding portions 61b, 64b, 65b Stepped portion 63a Locking inclined surface 66a Locking convex portion 70 elastic support members 71, 72, 73, 74 restraining recesses 71a, 73a, 74a

Claims (4)

An external chassis provided with a first side plate and a second side plate facing each other, and a mechanism unit supported via an elastic support member between the first side plate and the second side plate , In the disk device in which the mechanism unit is equipped with a rotation drive unit that drives the disk,
The mechanism unit includes a protruding lock member that protrudes toward the first side plate, a rotation lock member that rotates inside the second side plate, and the protruding lock member that protrudes outward from the mechanism unit. A drive mechanism is mounted to move the projecting posture and the retracting posture to rotate, and to rotate the rotation lock member in synchronism with this .
The first side plate is formed with a locking inclined surface that is inclined toward the mechanism unit toward the first direction, and the second side plate protrudes toward the mechanism unit. Convex is provided,
When the disk is transported toward the rotation drive unit, the protruding lock member is in the protruding posture and is abutted against the locking inclined surface, and the rotation lock member is rotated in the first direction. The mechanism unit is restrained so as not to move in the first direction with respect to both the first side plate and the second side plate by moving and abutting against the locking convex portion. Disk unit to be used. A slider is provided on each of both sides of the mechanism unit, and a constraining recess is formed in each slider.
When the disk is transferred toward the rotational drive unit, the respective sliders move, and the convex portions provided on the first side plate and the second side plate are held in the restraining concave portion, and the mechanism units, disk drive according to claim 1 wherein the constrained against movement in a second direction opposite the first direction direction. A peripheral portion of the constraining recess protrudes toward the first side plate and the second side plate , and when the constraining recess holds the convex portion, the peripheral portion is provided at a base portion of the convex portion. The disk device according to claim 2 , wherein the mechanism unit is constrained in a direction in which the convex portion extends in contact with the stepped portion. The mechanism unit is provided with a link mechanism that moves the sliders on both sides synchronously, and the link mechanism is operated by the drive mechanism,
4. The disk device according to claim 2 , wherein the protruding lock member is configured by a part of a link constituting the link mechanism, and the rotation lock member is rotated by a moving force of the link mechanism.

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