JP3770835B2 - Disk unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disk drive device for holding and driving a disk such as a CD or a DVD between a clamper and a turntable, and in particular, a disk drive that can increase the biasing force of the clamper against the turntable and can be thinned. About.
[0002]
[Prior art]
FIG. 4 is a side view showing a part of a conventional disk device.
[0003]
The disk device 1 is provided with a drive chassis 2, and the drive chassis 2 is provided with a rotation drive unit including a spindle motor 3 and a turntable 4 driven by the spindle motor 3. On the side surface of the drive chassis 2, elongated holes 2a, 2a extending in the vertical direction are formed.
[0004]
A clamper support member 5 is combined with the drive chassis 2. The clamper support member 5 has a base support 6 and a clamp arm 7 formed of a thin metal plate extending from the base support 6, and is opposed to the turntable 4 at the tip of the clamp arm 7. A clamper 8 is rotatably supported.
[0005]
The base support 6 is provided with support shafts 9 and 9 which are inserted into the elongated holes 2a and 2a, respectively, so that the clamper support member 5 is supported in a vertically movable manner. Has been.
[0006]
The disk device 1 is provided with a drive member 11 that is driven in the left-right direction in the figure, and the support shafts 9 and 9 are inserted into inclined guide portions 12 and 12 formed on the drive member 11. ing.
[0007]
When the drive member 11 moves to the right, the clamper support member 5 is moved upward by the inclined guide portions 12, 12, and the clamper 8 is separated from the turntable 4.
[0008]
When the disk D is supplied between the turntable 4 and the clamper 8, the drive member 11 is moved leftward, and the clamper support member 5 is lowered by the inclined guide portions 12 and 12, and the turntable is moved. 4 and the clamper 8 clamp the center of the disk D.
[0009]
[Problems to be solved by the invention]
In the disk device 1, the clamp arm 7 is formed of a thin metal plate and functions as a so-called leaf spring. In the clamped state shown in FIG. 4, the clamper 8 is pressed against the disk D by the elastic force of the leaf spring. It is done. Therefore, in order to securely hold the disk D by the turntable 4 and the clamper 8, it is necessary to increase the urging force F applied by the leaf spring to the clamper 8 in the clamped state.
[0010]
However, in the disk device 1, it is unavoidable that vertical movement play occurs in the engaging portion between the support shaft 9 and the inclined guide portion 12, the connecting portion between the clamper 8 and the clamp arm 7, and the like. . Therefore, after the clamper 8 abuts on the disk D, it is necessary to eliminate the operation play by further moving the base support 6 downward. Further, by moving the base support 6 downward, the amount of bending of the clamp arm 7 of the leaf spring can be increased and the urging force F can be increased.
[0011]
However, if the base support 6 is moved greatly downward after the clamper 8 abuts against the disk D, the range of movement of the clamper support member 5 in the vertical direction is increased, resulting in a thin device. It becomes difficult to apply.
[0012]
Further, when supplying the disk D between the clamper 8 and the turntable 4, the supplied disk D can be supplied to the turntable 4 or the clamper unless the opposing distance between the clamper 8 and the turntable 4 is separated. There is a risk of hitting 8.
[0013]
Therefore, as shown in FIG. 4, when the horizontal plane in which the drive chassis 2 extends is H, the clamp arm 7 is inclined with respect to the horizontal plane H by the angle θ so that the clamper 8 side is lifted up in the unclamped state. In this case, the distance between the turntable 4 and the clamper 8 can be increased. However, in this case, if the base support 6 is not moved largely downward in the clamped state, the clamp arm 7 cannot be sufficiently bent and the urging force F cannot be sufficiently exerted. Therefore, as a result, it is necessary to largely move the base support 6 downward, which obstructs the thinning of the apparatus.
[0014]
The present invention solves the above-mentioned conventional problems, and can press the clamper with a sufficiently large urging force against the disk, and shorten the lowering distance of the clamper support member when setting the clamp state. An object of the present invention is to provide a disk device that can be thinned.
[0015]
[Means for Solving the Problems]
  The present invention provides a turntable that is rotationally driven by a motor, a clamper facing the turntable, the clamper rotatably attached to a front side, and the clamper disposed at least in a part from the front to the base. A clamper support member provided with a flexible portion for biasing the
  When the direction along the rotation axis of the turntable and the clamper side is upward and the turntable side is downward,
  A switching means is provided for changing from a non-clamping state where the clamper is separated from the disk to a clamped state in which the clamper is pressed against the disk by moving the clamper support member downward,
  The switching means includes a base portion of the clamper support member.Provided inClose to the turntableLocated on the sideMore away from the first support and the turntableLocatedAt least two places with the second support,A drive member that moves up and down is provided,
  The drive member causes the first support portion to move a longer distance downward than the second support portion to change from the unclamped state to the clamped state.In the clamped state, the first support portion is positioned below the second support portion.It is characterized by that.
[0016]
The disk device of the present invention moves the entire clamper support member downward when shifting from the unclamped state to the clamped state. At this time, the front side where the clamper is provided is moved largely downward. Yes. As a result, even if the lowering distance of the clamper support member is short, the amount of bending of the flexible portion can be increased, and the operation backlash of the clamper support member itself and the motion backlash at the support portion of the clamper support member can be absorbed.
[0017]
In the above, it is preferable that a support body is provided that supports the base portion of the clamper support member from below when the clamper support member moves downward and enters the clamped state.
[0018]
  Further, the present invention provides a turntable that is rotationally driven by a motor, a clamper that faces the turntable, the clamper rotatably attached to a front side, and at least a part of the clamper from the front to the base. A clamper support member provided with a flexible portion for biasing the disk to the disk,
  When the direction along the rotation axis of the turntable and the clamper side is upward and the turntable side is downward,
  A switching means is provided for changing from a non-clamping state where the clamper is separated from the disk to a clamped state in which the clamper is pressed against the disk by moving the clamper support member downward,
  The switching means is provided with a drive member, and the drive member holds a support portion provided on the clamper support member above to set the unclamp state, and the unclamp setting A clamp setting part that is positioned below the part and contacts the support part from above to set the clamp state; and a guide part that guides the support part from the non-clamp setting part to the clamp setting part. Provided,
  When the clamper support member is lowered and the clamp state is set by the switching means, the base portion of the clamper support member is supported from below.The support part is brought into pressure contact with the clamp setting part.A support body is provided.
[0019]
When the support body is provided, when the clamper support member is lowered to be in a clamped state, the upward play applied from the support body can absorb the play in the portion supporting the clamper support member, and as a result. Even if the lowering distance of the clamper support member is short, the amount of bending of the flexible portion in the clamped state can be increased.
[0020]
In the clamper support member of the present invention, it is sufficient that the flexible portion is present at least partially. Here, the “flexible part” in this specification means a part or a structure capable of exerting an urging force when the clamper is pressed against the disk, and the “flexible part” is an “elastic part” or “bias”. Part ". Therefore, when the whole from the front part to the base part of the clamper support member is formed of an elastic member such as a metal thin plate, the whole from the front part to the base part of the clamper support member is a flexible part.
[0021]
Alternatively, one part of the clamper support member from the front part to the base part is a flexible part formed of an elastic member such as a thin metal plate, and the other part is formed of a highly rigid member having a relatively large plate thickness. It may be. Alternatively, the entire clamper support member is formed of the above-described relatively rigid member, and the clamper is rotatably supported at the tip of the clamper support member, and a thin metal plate stacked on the clamper support, etc. The elastic member may be provided, and the elastic member may be used to press and bias the clamper toward the disk. In this case, the elastic member provided to overlap the clamper support member functions as a “flexible portion”, “elastic portion”, or “biasing portion”.
[0022]
Further, when the portion of the base portion of the clamper support member that contacts the support body is a flexible portion such as a metal thin plate, the base portion is pressed upward by the support body in the clamped state, thereby It is possible to increase the deflection amount of the flexible portion itself.
[0023]
  In the present invention, for example,The clamper support includes a high-rigidity portion to which a moving force in the vertical direction is applied from the drive member, an elastic deformation portion extending from the high-rigidity portion in a direction away from the turntable, and the elastic deformation portion to the turntable. A clamp arm extending to an opposing position, the clamp arm supports the clamper, and the elastic deformation portion is supported by the support body.Configured as a thing.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
1 is a side view showing an example of the disk device of the present invention, FIGS. 2A and 2B are sectional views taken along the line II-II in FIG. 1 showing a clamping operation, and FIG. 3 is a sectional view of FIG. FIG.
[0025]
In the disk device 20, a nose portion 21a is provided on the front surface of a housing 21, and an insertion port 22 on a slit extending in the width direction is opened in the nose portion 21a. Further, display means such as a liquid crystal display panel and operation buttons are provided on the surface of the nose portion 21a.
[0026]
A stock portion 23 in which a plurality of disks can be stacked in the height direction is provided in the inner portion of the housing 21 on the Y1 side. Between the insertion port 22 provided in the nose part 21a and the stock part 23, there is provided a disk conveying means (not shown) for carrying in and out the disk.
[0027]
In the stock unit 23, a plurality of guide columns 42 extending in the vertical direction in the figure are installed in the housing 21 and supported rotatably, and all the guide columns 42 are driven to rotate synchronously. A screw groove 42 a is formed on the outer periphery of each guide column 42. The screw grooves 42a have a dense pitch at the upper and lower portions of the guide column 42, and a sparse pitch at the middle portion. A plurality of disk holders 41 provided in the stock portion 23 are provided with protrusions that mesh with the screw grooves 42 a of the guide support post 42. When the guide column 42 rotates, each disk holder 41 is moved up and down by the screw groove 42a.
[0028]
Since the screw grooves 42a have a dense pitch at the upper and lower portions of the guide column 42, the disk holder 41 is stocked so as to overlap closely at the upper and lower portions. Further, since the pitch of the screw groove 42a is sparse at the intermediate portion of the guide column 42, one of the disk holders 41 is separated from the other adjacent disk holders 41 at the intermediate portion of the guide column 42. As shown in FIG. 1, when selecting a disk in the stock section 23, when the selected disk holder 41 moves to the intermediate portion, the selected position 41A is at the same height as the insertion slot 22, and at this time The selection operation is stopped with.
[0029]
A drive unit 30 is provided between the insertion port 22 and the stock portion 23. The drive unit 30 is provided with a turntable 32 that is rotationally driven by a spindle motor 31 on the lower side and a clamper 33 that faces the turntable 32 on the upper side. In addition, an optical head (not shown) is provided in the drive unit 30.
[0030]
As shown in FIG. 1, a support chassis 65 that supports the drive unit 30 is provided inside the housing 21. The drive unit 30 is supported on the upper surface of the support chassis 65 so as to be movable in the Y1-Y2 direction between the insertion port 22 and the stock portion 23 by a driving force of a motor (not shown).
[0031]
The support chassis 65 is supported by a plurality of dampers 66 and is suspended by a coil spring 67 in the housing 21. Pins 68 and 68 are fixed to the side surface of the support chassis 65. On the other hand, a lock member 69 that moves in the Y1-Y2 direction is provided on the housing 21 side, and the pins 68, 68 are inserted into lock holes 70, 70 formed in the lock member 69. The lock holes 70 and 70 have lock portions 70a and 70a whose width is narrowed on the Y2 side.
[0032]
FIG. 1 shows a state where the lock member 69 moves in the Y1 direction, the pins 68 and 68 are held in the lock portions 70a and 70a, and the support chassis 65 is locked. When the disk D is clamped by the turntable 32 and the clamper 33, the lock member 69 moves in the Y2 direction, so that the lock portions 70a and 70a of the lock holes 70 and 70 are separated from the pins 68 and 68, and the support chassis. 65 is unlocked. At this time, the support chassis 65 and the drive unit 30 are elastically supported in the housing 21 by the dampers 66 and 66 and the coil spring 67.
[0033]
In this disk apparatus, the drive unit 30 is moved in the Y1 direction and stopped at the drive position as shown in FIG. 1, and the disk D inserted from the insertion port 22 is moved by the disk transport means to the drive unit. The central hole of the disk D is clamped by the turntable 32 and the clamper 33. Then, an information recording or reproducing operation is performed by the optical head.
[0034]
The disc D for which recording or reproducing operation has been completed may be discharged to the insertion slot 22 as it is, or may be transported to the disc holder 41 at the selection position 41A and held by the disc holder 41.
[0035]
When driving any one of the disks D in the stock unit 23, the drive unit 30 is once moved in the Y2 direction and moved to a retracted position close to the insertion port 22 as shown by a broken line in FIG. This retracted position is a position where the drive unit 30 does not overlap the disk D in the stock portion 23 in the vertical direction. In this state, the guide column 42 is rotated, the disk holders 41 are moved up and down by the guide operation of the screw grooves 42a, and the selected disk holder 41 is moved to the selected position 41A. From this state, the drive unit 30 moves in the Y1 direction from the retracted position indicated by the broken line to the drive position indicated by the alternate long and short dash line, and the disk D in the disk holder 41 at the selected position 41A is conveyed in the Y2 direction by the disk conveying means. The central hole of the disk D is supplied to the drive unit 30 and is clamped by the turntable 32 and the clamper 33.
[0036]
As shown in FIGS. 2 to 3, a drive chassis 34 is provided in the drive unit 30, and the spindle motor 31 is installed on the drive chassis 34. The optical head is also supported by the drive chassis 34 so as to be movable in the X1-X2 direction. The drive chassis 34 is provided with a pair of side plates 34a facing the back side of the drawing sheet, and vertical guide portions 34b formed by elongated holes extending vertically are formed in the respective side plates 34a. Further, at least one side plate 34a is formed with horizontal guide portions 34c, 34c formed by elongated holes along a horizontal plane (H) in which the drive chassis 34 extends.
[0037]
A clamper support member 35 is provided on the drive chassis 34. The clamper support member 35 includes a base support 35a, a rising portion 35b rising upward from the base support 35a, and a clamp arm 35c extending from the rising portion 35b toward the turntable 32. In this embodiment, the base support 35a, the rising portion 35b, and the clamp arm 35c are formed by bending a single stainless steel thin plate. The clamper 33 is rotatably supported at the tip of the clamp arm 35c. The base support 35a and the clamp arm 35c are greatly separated on the X1 side, and a part of the disk transport means is located in this space.
[0038]
The base support 35a is formed with a bent side plate 35d bent downward from both side edges facing each other with a space in a direction orthogonal to the paper surface. In the base support 35a of the clamper support member 35, the portion where the bent side plate 35d is formed is a high rigidity portion having a relatively high rigidity, and is higher than the bent side plate 35d of the base support 35a. A portion protruding to the X1 side is an elastic deformation portion 35e having lower rigidity than the high-rigidity portion.
[0039]
In this embodiment, since the entire clamper support member 35 is formed of a single metal thin plate, the rising portion 35b, the clamp arm 35c, and the elastic deformation portion 35e can all function as so-called leaf springs. It is a “flexible part”.
[0040]
The clamper support member 35 only needs to function as a flexible portion (elastic portion) in which any one of the base support 35a, the rising portion 35b, and the clamp arm 35c can be elastically deformed. It may be a highly rigid part having a bent side plate, or a part other than the flexible part may be formed of a highly rigid material to form a highly rigid part.
[0041]
A pair of support shafts 36 a and 36 b are provided on the bent side plate 35 d of the clamper support member 35. The first support shaft (first support) 36a is provided on the side close to the turntable 32, and the second support shaft (first support shaft 36a is provided on the side away from the turntable 32). Second support) 36b.
[0042]
The first support shaft 36 a is inserted into a vertical guide portion 34 b formed in the drive chassis 34. Therefore, the clamper support member 35 can move in the vertical direction, but is restrained without moving in the horizontal direction (X direction).
[0043]
Switching means 50 is provided between the drive chassis 34 and the clamper support member 35. The switching means 50 includes a drive member 51 positioned between the side plate 34a of the drive chassis 34 and the bent side plate 35d of the clamper support member 35, and a motor that moves the drive member 51 in the X1-X2 direction. It has a drive part.
[0044]
The drive member 51 is interposed between the side plate 34a bent to the back side of the paper surface of the drive chassis 24 and the bent side plate 35d bent to the back side of the paper surface by the base support body 35a of the clamper support member 35. The cross section is formed in a concave shape so as to extend. The drive member 51 is positioned between the side plate 34a and the bent side plate 35d, and can apply a lifting force and a restraining force to the support shafts 36a and 36b on both sides of the clamper support member 35. It has become.
[0045]
The drive member 51 is a plate material, and the drive member 51 has a pair of horizontal guide shafts 52 and 52. The horizontal guide shafts 52, 52 are inserted into the horizontal guide portions 34c, 34c of the drive chassis 34 so that the drive member 51 can reciprocate in the X1-X2 direction.
[0046]
In the drive member 51, a first drive unit 53 is provided on the side closer to the turntable 32, and a second drive unit 54 is provided at a position further away from the turntable 32. The first drive unit 53 and the second drive unit 54 are formed by providing a notch in the drive member 51. A first support shaft 36a provided on a base support 35a of the clamper support member 35 is inserted into the first drive unit 53, and the second support shaft 36b is connected to the second drive unit. 54 is inserted.
[0047]
As shown in FIG. 3, in the first driving unit 53, a non-clamp setting unit 53 a is formed on the turntable 32 side, and the clamp setting is located at a position lower than the non-clamp setting unit 53 a on the opposite side. A portion 53c is formed. The non-clamp setting part 53a and the clamp setting part 53c are connected by an inclination guide part 53b. Similarly, the second drive unit 54 is also provided with an unclamp setting unit 54a, an inclination guide unit 54b, and a clamp setting unit 54c. Here, the non-clamp setting parts 53 a and 54 a and the inclined guide parts 53 b and 54 b mean the space of the notch part formed in the drive member 51. However, the clamp setting parts 53c and 54c mean the upper edge part of the notch part.
[0048]
As shown in FIG. 3, the unclamping setting part 53a of the first driving unit 53 and the unclamping setting part 54a of the second driving unit 54 are based on a horizontal plane such as the bottom surface 34d of the drive chassis 34. Are located at the same height h1. In addition, the clamp setting unit 53c of the first drive unit 53 is lower in height from the reference than the clamp setting unit 54c of the second drive unit 54. In FIG. 3, this height difference is indicated by Δh.
[0049]
A support body 55 that rises upward is provided on the X1 side of the drive chassis 34. The support body 55 is formed by bending a part of the drive chassis 34 or formed by being fixed to the drive chassis 34. The support body 55 is opposed to the lower side of the elastic deformation portion 35e protruding from the base support body 35a of the clamper support member 35 to the X1 side.
[0050]
As shown in FIG. 3, a positioning pin 56 is fixed to the drive chassis 34, and the upper end of the positioning pin 56 is a tapered surface 56a. On the other hand, the base support 35a of the clamper support member 35 is formed with a circular positioning hole 35f that fits with the positioning pin 56 with a minimum clearance.
[0051]
Next, the disk clamping operation in the drive unit 30 will be described.
In FIG. 2A, the drive member 51 has moved in the X1 direction, and the first support shaft 36a provided on the clamper support member 35 is in the unclamp setting portion 53a of the first drive portion 53. The second support shaft 36b is positioned within the unclamp setting portion 54a of the second drive unit 54, and the unclamped state is set. Accordingly, the entire clamper support member 35 is lifted upward away from the drive chassis 34, and a space for guiding the disk D is formed between the turntable 32 and the clamper 33.
[0052]
The center hole of the disc D conveyed from the insertion port 22 or the disc holder 41 shown in FIG. 1 moves onto the turntable 32, and when this is detected, the operation moves to a clamping operation.
[0053]
In the clamping operation, the drive member 51 is moved in the X2 direction by the drive source of the switching means 50. Due to this moving force, the first support shaft 36a is lowered by the inclined guide portion 53b of the first drive portion 53, and the second support shaft 36b is lowered by the inclined guide portion 54b of the second drive portion 54. Thus, the entire clamper support member 35 translates downward toward the drive chassis 34.
[0054]
During the lowering operation of the clamper support member 35, the clamper 33 hits the upper surface of the disk D on the turntable 32. At this time, the first support shaft 36a is located near the end of the inclined guide portion 53b on the X1 side, and the second support shaft 36b is also located near the end of the inclined guide portion 54b on the X1 side.
[0055]
After the clamper 33 hits the disk D, the drive member 51 further moves in the X2 direction, so that the clamper support member 35 is further lowered and the first support shaft 36a is clamped by the first drive unit 53. The second support shaft 36b moves to the clamp setting unit 54c of the second drive unit 54. Due to the lowering operation of the clamper support member 35, the clamp arm 35c and the rising portion 35b of the clamper support member 35 are bent, and the clamper 33 is pressed against the disk D with an elastic force, and the biasing force is applied to the clamper 33. F1 is given and the disk D is sandwiched between the turntable 32 and the clamper 33.
[0056]
As shown in FIG. 3, in this clamped state, the elastically deforming portion 35 e of the clamper support member 35 contacts the upper surface of the support body 55. Due to this contact, the elastic deformation portion 35e is slightly deformed upward, and the first support shaft 36a and the second support shaft 36b provided on the clamper support member 35 are brought into pressure contact with the clamp setting portions 53c and 54c, respectively. Thus, the upper and lower support gaps (operational play) between the clamper support member 35 and the drive member 51 are absorbed.
[0057]
That is, when the clamper 33 is pressed against the upper surface of the disk D, the reaction force gives a clockwise reaction force Mc shown in FIG. 3 to the clamper support member 35, and the second support shaft 36b It is going to leave | separate from the clamp setting part 54c. However, since the base support body 35a of the clamper support member 53 is supported by the support body 55, it is possible to prevent the second support shaft 36b from moving away from the clamp setting section 54c and causing an operation backlash. Therefore, the urging force F1 applied to the clamper 33 is not weakened, and the disk D can be reliably clamped.
[0058]
Furthermore, as shown in FIG. 3, the clamp setting unit 53 c of the first drive unit 53 is at a position lower than the clamp setting unit 54 c of the second drive unit 54 by Δh. Therefore, when the unclamped state shown in FIG. 2A shifts to the clamped state shown in FIG. 2B, the descending distance of the first support shaft 36a is longer than the descending distance of the second support shaft 36b. Become. Therefore, at the final stage of the clamping operation, the clamper support member 35 is slightly rotated counterclockwise in FIG. As a result, a force is exerted on the clamp arm 35c to lower the tip portion where the clamper 33 is provided against the reaction force moment Mc, and the amount of bending of the clamper support member 35 can be increased. The power F1 can be increased.
[0059]
As described above, when the clamper support member 35 is lowered to the clamped state, the operation backlash of the clamper support member 35 can be absorbed as described above, and the clamper support member 35 can be greatly deflected. Even if the entire descending distance of the support member 35 is short, the biasing force F1 of the clamper 33 against the disk can be increased. Therefore, there is no waste in the lifting space of the clamper support member 35, and the thickness can be reduced.
[0060]
Further, as shown in FIG. 3, when the clamper support member 35 is lowered to the clamped state, the positioning hole 35f formed in the base support body 35a is inserted into the positioning pin 56 with a minimum clearance, so that the clamper support member 35 can be prevented from rattling in the X direction and the direction orthogonal to the paper surface. That is, in the clamped state, the first and second support shafts 36a and 36b are brought into close contact with the clamp setting portions 53c and 54c, and the clamper support member 35 does not rattle in the vertical direction. It can also be prevented from shaking in the direction.
[0061]
Since the clamper support member 35 can be prevented from rattling when the disk D is clamped and rotated, the vibration resistance performance when the disk D is rotated can be improved. In addition, it is possible to prevent the occurrence of sound skipping and the like and fatigue of the elastic part due to vibration.
[0062]
Further, in this embodiment, when the clamper support member 35 is lowered, even if the descending distance is short, the clamper support member 35 can be greatly bent, so as shown in FIG. Even when the inclination angle θ with respect to the horizontal plane (H) is given to the clamp arm 35c so that the tip of the clamp arm 35c faces slightly upward in the non-clamped state, the clamper support member 35 is lowered. The energizing force F1 in the clamped state can be set sufficiently large without increasing the distance.
[0063]
Therefore, in the unclamped state, the distance between the turntable 32 and the clamper 33 can be widened so that the disk D can be easily guided between the turntable 32 and the clamper 33.
[0064]
【The invention's effect】
As described above, in the present invention, the amount of bending of the clamper support member can be increased so that the disk can be securely clamped. Further, in the clamped state, it is possible to absorb the play of the support portion of the clamper support member and prevent the biasing force to the clamper from weakening. Furthermore, since the clamping force of the clamper can be increased even if the lowering distance of the clamper support member is short, the entire apparatus can be easily thinned.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of a disk device according to the present invention;
2 is a cross-sectional view taken along line II-II in FIG. 1, (A) shows an unclamped state, and (B) shows a clamped state.
FIG. 3 (B) is a partially enlarged view of FIG.
FIG. 4 is a side view showing a clamp mechanism of a conventional disk device;
[Explanation of symbols]
20 disk devices
21 Case
22 insertion slot
23 Stock Department
30 Drive unit
31 Spindle motor
32 Turntable
33 Clamper
34 drive chassis
34b Vertical guide
35 Clamper support member
36a First support shaft
36b Second support shaft
50 switching means
51 Drive member
53 1st drive part
53a Non-clamp setting part
53b Inclination guide
53c Clamp setting part
54 Second drive unit
54a Non-clamp setting part
54b Inclination guide
54c Clamp setting part
55 Supporting body
56 Positioning pin

Claims (4)

A turntable that is rotationally driven by a motor, a clamper that faces the turntable, and the clamper is rotatably attached to the front side, and biases the clamper to the disk at least at a part from the front to the base. And a clamper support member provided with a flexible part for
When the direction along the rotation axis of the turntable and the clamper side is upward and the turntable side is downward,
A switching means is provided for changing from a non-clamping state where the clamper is separated from the disk to a clamped state in which the clamper is pressed against the disk by moving the clamper support member downward,
The switching means includes at least two of a first support portion provided at a base portion of the clamper support member and positioned closer to the turntable and a second support portion positioned further away from the turntable. A drive member that moves the location in the vertical direction is provided,
The drive member causes the first support portion to move downwardly longer than the second support portion to change from the unclamped state to the clamped state. In the clamped state, the first support portion part disk apparatus according to claim you to positioned lower than the second support portion.   2. The disk device according to claim 1, further comprising a support body that supports a base portion of the clamper support member from below when the clamper support member moves downward to be in the clamped state. A turntable that is rotationally driven by a motor, a clamper that faces the turntable, and the clamper is rotatably attached to the front side, and biases the clamper to the disk at least at a part from the front to the base. And a clamper support member provided with a flexible part for
When the direction along the rotation axis of the turntable and the clamper side is upward and the turntable side is downward,
A switching means is provided for changing from a non-clamping state where the clamper is separated from the disk to a clamped state in which the clamper is pressed against the disk by moving the clamper support member downward,
The switching means is provided with a drive member, and the drive member holds a support portion provided on the clamper support member above to set the unclamp state, and the unclamp setting A clamp setting part that is positioned below the part and contacts the support part from above to set the clamp state; and a guide part that guides the support part from the non-clamp setting part to the clamp setting part. Provided,
By said switching means, when the clamped state the clamper support member is lowered is set, Rusasae body is pressed against the supporting portion a base of the clamper support member supports from below the clamp setting unit Is provided. The clamper support includes a high-rigidity portion to which a moving force in the vertical direction is applied from the drive member, an elastic deformation portion extending from the high-rigidity portion in a direction away from the turntable, and the elastic deformation portion to the turntable. 4. The disk device according to claim 2, further comprising: a clamp arm extending in an opposing position, the clamp arm supporting the clamper, and the elastic deformation portion being supported by the support body .

Images