JP3804236B2 - Recording medium loading device and recording and / or reproducing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a large-capacity storage device used for an information processing apparatus and the like, and in particular, a disc cartridge that houses a disc-shaped information recording medium in which at least one side is readable / writable is used as a cartridge loading unit.Load the recording medium into the recording medium loading sectionFor loadingIt is a recording medium loading deviceDisk cartridge loading device and the loading deviceRecording and / or playback deviceThe present invention relates to a disk storage device.
[0002]
[Prior art]
Conventionally, as a high-speed and large-capacity disk storage device typified by a removable disk storage device, for example, as shown in FIGS. 38 to 40, the pop-up type and the slot type are roughly classified according to the disk cartridge loading method. There are two types of disk storage devices known as called.
[0003]
The disk storage device 200 shown in FIGS. 38A and 38B is a pop-up type (hereinafter referred to as “first conventional example”) in which the cartridge holder is tilted to perform the loading or discharging operation of the disk cartridge.
[0004]
The disk storage device 200 includes a box-shaped mechanical chassis 201 whose upper surface is opened, a cartridge holder 202 that is attached to the mechanical chassis 201 so as to be tiltable and can open and close the front cartridge insertion port 202a. ing. In the mechanical chassis 201, a disk drive device 203 that rotates and drives a disk-shaped information recording medium housed in a disk cartridge 210 held by a cartridge holder 202, and an information recording surface of the rotated information recording medium A recording / reproducing apparatus (not shown) for recording and / or reproducing information signals is incorporated.
[0005]
A pair of left and right support brackets for tiltably supporting the rear ends of the cartridge holder 202 are attached to both side portions on the back side of the mechanical chassis 201. Each of the pair of support brackets is provided with a bearing hole, and a support shaft 202b projecting from both ends of the rear portion of the cartridge holder 202 is rotatably fitted in each bearing hole. A pop-up spring made of an urging member is disposed below the cartridge holder 202, and the cartridge holder 202 is flipped up and tilted by the spring force of the pop-up spring as shown in FIG. 38A. It becomes. On the other hand, by pressing against the spring force of the pop-up spring, the cartridge holder 202 is tilted forward and attached to the mechanical chassis 202 as shown in FIG. 38B. A pair of left and right positioning pins 204 that position the cartridge holder 202 at a predetermined position and horizontally support the cartridge holder 202 are provided at the front portion in the mechanical chassis 201.
[0006]
Further, the cartridge holder 202 is provided with a shutter opening mechanism that opens and closes a shutter that opens and closes the opening of the disk cartridge 210, an erroneous insertion prevention mechanism that prevents erroneous insertion of the disk cartridge 210, and the like. The tilt amount of the cartridge holder 202 shown in FIG. 38A is regulated to a predetermined amount by a restraining plate or the like attached to the mechanical chassis 201. Then, the mounted state of the cartridge holder 202 shown in FIG. 38B is held by a holder lock mechanism (not shown), and by releasing the locked state, the cartridge holder 202 is flipped up and tilted to change to the state shown in FIG.
[0007]
The procedure for mounting the disk cartridge 210 to the pop-up disk storage device 200 having such a configuration is as follows. First, as shown in FIG. 38A, the holder lock mechanism is released, the cartridge holder 202 is flipped up, and the cartridge insertion port 202a is opened. The disc cartridge 210 is inserted from the cartridge insertion port 202a, and the disc cartridge 210 is held at a predetermined position of the cartridge holder 202. Next, the cartridge holder 202 is pressed and closed, and the disc cartridge 210 is loaded into the cartridge loading unit, whereby the information recording medium is loaded into the disc driving device 203 as shown in FIG. Signals can be read and / or written.
[0008]
On the other hand, the procedure for discharging the disc cartridge 210 from the cartridge holder 202 is as follows. First, the holder lock mechanism is released and the cartridge holder 202 is flipped up. Next, the disk cartridge 210 can be easily removed from the cartridge holder 202 by grasping and pulling out the disk cartridge 210.
[0009]
39A and 39B, the disk storage device 220 shown in FIGS. 39A and 39B is a slot type in which a disk cartridge is loaded or ejected from a slot provided in the apparatus main body, and a cartridge holder built in the apparatus main body is moved up and down. A disk cartridge is loaded in a cartridge loading section (hereinafter referred to as “second conventional example”).
[0010]
The disk storage device 220 covers a box-shaped mechanical chassis 221 having an open upper surface, a cartridge holder 222 held in the mechanical chassis 221 so as to be movable in the vertical direction, and an opening on the upper surface of the mechanical chassis 221. An exterior cover 225, a slide plate 226 slidably attached to the inner surface of the exterior cover 225, a holder lifting mechanism 227 for converting the back-and-forth movement of the slide plate 226 into the lifting / lowering operation of the cartridge holder 222, and the like .
[0011]
In the mechanical chassis 221, a disk drive device 223 that rotates and drives a disk-shaped information recording medium, and a recording / reproducing device (not shown) that records and / or reproduces information signals on the information recording surface, etc. Is built-in. A pair of left and right positioning pins 224 that position the cartridge holder 222 at a predetermined position and horizontally support the cartridge holder 222 are provided at the front portion in the mechanical chassis 221. The holder lifting mechanism 227 for moving the cartridge holder 222 up and down includes four guide pins 222 b provided on the cartridge holder 222, four vertical grooves 225 a provided on the exterior cover 225 and extending in the vertical direction, and a slide plate 226. The guide pins 222b are inserted into the vertical grooves 225a and the inclined grooves 226a in common and are slidable.
[0012]
As a result, the cartridge holder 222 and the slide plate 226 can be moved relative to each other in the direction orthogonal to each other through the operation of the holder lifting mechanism 227, and the front cartridge insertion port 222a can be opened and closed. When no cartridge is loaded in the cartridge holder 222, the cartridge holder 222 stands by in the vicinity of the upper slot slot 228 as shown in FIG. 39A, and when loading the disk cartridge, as shown in FIG. 39B. The cartridge holder 222 is lowered to the lower position.
[0013]
The mounting procedure of the disk cartridge 210 in the slot type disk storage device 220 having such a configuration can be performed by one operation of inserting the disk cartridge 210 into the cartridge holder 222. That is, as shown in FIG. 39A, when the disc cartridge 210 is inserted from the slot port 228 of the apparatus main body into the cartridge insertion port, the slide plate 226 is moved backward by the pressing force of the disc cartridge 210, and the guide pin 222b of the cartridge holder 222 is moved. Enters the inclined groove 226a of the slide plate 226.
[0014]
At this time, the guide pin 222b is restricted from moving in the horizontal direction by the vertical groove 225a and can move only in the vertical direction, so that the cartridge holder 222 is pushed down by being guided by the vertical groove 225a. As a result, as shown in FIG. 39B, the cartridge holder 222 is lowered to the lower position, and the disk cartridge 210 is loaded at a predetermined position of the cartridge loading unit, and one operation of “inserting the disk cartridge into the cartridge holder” is performed. The loading of the disk cartridge 210 is completed.
[0015]
In the above-described two-type (pop-up type and slot type in which the cartridge holder moves up and down) disk cartridge loading apparatus, when the disk cartridge 210 is loaded or ejected, the read / write head of the recording / reproducing apparatus is placed outside the disk cartridge 210 in advance. Needs to be evacuated. This is because the loading or unloading operation of the disk cartridge 210 is performed from the vertical direction, so that the disk cartridge 210 abuts when the read / write head is not retracted.
[0016]
Further, the disk storage device 230 shown in FIGS. 40A and 40B is a slot type in which a disk cartridge is loaded or ejected from a slot provided in the apparatus body, and a disk drive device or the like can be used instead of raising and lowering the cartridge holder. The disk cartridge is loaded into the cartridge loading section by moving up and down (hereinafter referred to as “third conventional example”).
[0017]
The disk storage device 230 includes a box-shaped mechanical chassis 231 with an open lower surface, a cartridge holder 232 that covers the upper surface of the mechanical chassis 231, a bottom cover 235 that covers an opening on the lower surface of the mechanical chassis 231, and the like. Yes. Both the disk drive device 233 and the positioning pin 234 housed in the mechanical chassis 231 are configured to be movable up and down, and the upper ends of the disk drive device 233 and the positioning pin 234 are the upper surface plate of the mechanical chassis 231. It penetrates the insertion holes 231a and 231b provided in the upper part and is configured to protrude upward. Then, the disc cartridge 210 is taken in and out from a cartridge insertion opening 232a provided in the front of the cartridge holder 232.
[0018]
In other words, the disk cartridge 210 is inserted from the cartridge insertion slot 232a, moves horizontally on the mechanical chassis 231, and when the disk cartridge 210 is inserted to the cartridge loading portion, the disk drive device 233 and the positioning pin 234 are pushed up. As a result, the upper portions of the disk drive device 233 and the positioning pins 234 pass through the insertion holes 231a and 231b and protrude onto the mechanical chassis 231, and the disk cartridge 210 is positioned at a predetermined position to complete the loading.
[0019]
In this disk storage device 230, the disk cartridge 210 moves horizontally on the mechanical chassis 231, so that the read / write head of the recording / reproducing apparatus does not need to be retracted outside the disk cartridge 210. Regarding the loading procedure of the disk cartridge 210, the loading of the disk cartridge can be completed by one operation of “inserting the disk cartridge into the cartridge holder” as in the second conventional example described above.
[0020]
[Problems to be solved by the invention]
However, in such a conventional disk storage device, according to the first conventional example of the pop-up method, when the disk cartridge 210 is loaded / discharged, the cartridge holder 202 is tilted so that the entire thickness of the disk storage device 200 is temporarily increased. However, if the tilted cartridge holder 202 is housed in the mechanical chassis 201, there is an advantage that the entire apparatus can be thinned. On the other hand, as described above, the first conventional example requires a plurality of loading procedures when loading the disk cartridge 210, and thus there is a problem that it is inconvenient for the operator.
[0021]
On the other hand, according to the second and third conventional examples of the slot system, the loading of the disk cartridge can be completed by only one operation of “inserting the disk cartridge 210 into the cartridge holder 222 or 232”. There is an advantage that the replacement work of the cartridge does not take time and is easy to use. On the other hand, the second and third conventional examples have a problem that the thickness of the entire disk storage device 220 or 230 increases due to the following reasons.
[0022]
In the second conventional example, the vertical stroke of the cartridge holder 222, and in the third conventional example, the vertical strokes of the disk drive device 233 and the positioning pin 234 occupy a large part of the thickness of the device. This is because useless space (dead space) is generated inside the apparatus after loading.
[0023]
Specifically, in the second conventional example shown in FIG. 39, the exterior cover 225 is fixedly attached to the mechanical chassis 221, and the cartridge holder 222 is disposed so as to be movable up and down inside thereof. After the cartridge holder 222 is lowered to the loading position and the loading of the disk cartridge 210 is completed, a dead space 229 is created. This dead space 229 is a major obstacle to reducing the thickness and size of the disk storage device 220.
[0024]
In the third conventional example shown in FIG. 40, since the disk drive device 233 and the positioning pin 234 are positioned under the mechanical chassis 231 before the disk cartridge 210 is loaded, there is a space for storing these in advance. It is necessary to ensure in the mechanical chassis 231. Therefore, after the disk cartridge 210 is loaded, dead spaces 238 and 239 are created under the disk drive device 233 and the positioning pins 234, and these dead spaces 238 and 239 are the same for reducing the thickness and size of the disk storage device 230. It becomes an obstacle.
[0025]
  The present invention has been made in view of such a conventional problem, and has an advantage of a pop-up method in which a disk storage device can be thinned after loading a disk cartridge, and a disk cartridge loading procedure is simplified. Combined with the superiority of the slot method that is excellent in usabilityIt is a recording medium loading deviceDisk cartridge loading device and the loading deviceRecording and / or playback deviceAn object is to provide a disk storage device.
[0026]
[Means for Solving the Problems]
  In order to solve the above-described problems and achieve the above object,Recording medium loading deviceIsA recording medium loading apparatus comprising a recording medium holder into which a recording medium is inserted and a recording medium loading unit into which a recording medium held by the recording medium holder is loaded, the recording medium being loaded into the recording medium loading unit Alternatively, a holder lift mechanism that makes the thickness of the recording medium loading device when ejecting the recording medium from the recording medium loading unit thicker than the thickness of the recording medium loading device during recording or reproduction of the recording medium, and the recording medium loading device And a contact member that abuts from the front end side of the recording medium. The holder lift mechanism increases the thickness of the recording medium loading device when the recording medium is ejected. In addition, the contact member is in contact with the leading end side of the recording medium, and the recording medium is discharged from the recording medium loading unit.
  The recording and / or reproducing apparatus of the present invention includes a recording medium holder into which a recording medium is inserted, a recording medium loading unit into which a recording medium held by the recording medium holder is loaded, and the recording medium loading unit. A recording and / or reproducing device having recording or reproducing means for reading or writing information on a loaded recording medium, wherein the recording medium is loaded into the recording medium loading unit or the recording medium is loaded from the recording medium loading unit. A holder lift mechanism for making the thickness of the recording and / or reproducing device when ejected thicker than the thickness of the recording and / or reproducing device at the time of recording or reproducing the recording medium, and insertion for inserting the recording medium into the recording medium loading device A contact member that is located on the leading end side of the recording medium in the direction and abuts from the leading end side of the recording medium. When the recording medium is ejected, a recording and / or reproducing device is provided by a holder lift mechanism. With thickness is thicker, the abutting member abuts on the leading end side of the recording medium, is characterized in that the recording medium is ejected from the recording and / or reproducing apparatus.
[0027]
According to the present invention configured as described above, the loading of the disk cartridge can be completed by only a single operation of inserting the disk cartridge into the cartridge holder, and the dead space created in the apparatus can be minimized, except during loading / unloading. Thinning and downsizing of the entire apparatus can be realized.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, the present inventionRecording medium loading deviceAnd its loading deviceRecording and / or playback deviceAn example of this will be described with reference to the drawings. 1 to 28 show a removable disk storage device according to a first embodiment of a disk storage device which is a recording and / or playback device of the present invention. FIG. 1 is an external perspective view of the removable disk storage device. 2 is a plan view, FIGS. 3 and 4 are a side view and a cross-sectional view, FIG. 5 is a plan view after the exterior cover is removed, FIG. 6 is a cross-sectional view, and FIG. 8 is a side view, FIG. 9 is a cross-sectional view, FIGS. 10 to 12 are diagrams for explaining the operation of the removable disk storage device, FIG. 13 is a cross-sectional view, FIG. 14 is a bottom view, and FIG. 16 is a plan view, FIG. 17 is a cross-sectional view, FIG. 18 is a cross-sectional view taken along the line AA of FIG. 16, FIGS. 19 to 21 are explanatory views of the loading operation, and FIGS. Figure 24 Illustration of Yatta opening mechanism, Figure 25 is a perspective view of the disk cartridge, FIG. 26 is also a cross-sectional view, FIG. 27 is a side view, FIG. 28 is an explanatory view when erroneous insertion.
[0029]
  29 to 33 show the present invention.Recording and / or playback deviceFIG. 29 is an external perspective view of the disk storage device, FIG. 30 is a side view of the same, FIG. 31 is an exploded perspective view, and FIGS. 32 and 33 are illustrations of the pull-in operation. FIG. FIG. 34 is an explanatory diagram showing a third embodiment of the disk storage device of the present invention. 35 to 37 show a fourth embodiment of the disk storage device of the present invention. FIG. 35 is an external perspective view of the disk storage device, and FIGS. 36 and 37 are side views and sectional views. .
[0030]
In the disk storage device according to the first embodiment, an information signal is newly written (recorded) on a hard disk (magnetic disk) D showing a specific example of a disk-shaped information recording medium, or previously recorded on the hard disk. The information signal is read (reproduced) and applied to a so-called recording / reproducing disc recording / reproducing apparatus, and will be described in the following order.
[0031]
[1] Configuration of disk cartridge (FIGS. 25 and 26)
[2] External structure of disc recording / reproducing apparatus (FIGS. 1, 2, 3A, and 4A)
[3] Internal structure of disk recording / playback device
(3-1) Disk drive mechanism (FIGS. 3B and 4B)
(3-2) Holder lift mechanism (FIGS. 5-9, 13-23)
(3-3) Shutter opening mechanism (FIGS. 24, 26 to 28)
(3-4) Recording / reproducing mechanism (FIGS. 10 to 12)
[4] Operation of disc recording / playback device
(4-1) State before loading of disc cartridge (FIG. 10)
(4-2) Initial state of disk cartridge loading (FIGS. 26 and 27)
(4-3) Lowering start state of cartridge holder (FIG. 11)
(4-4) Information reading / writing state (FIG. 12)
[0032]
[1] Configuration of disk cartridge (FIGS. 25 and 26)
As shown in FIGS. 25 and 26, the disk cartridge 1 includes a disk housing 2 composed of a pair of upper and lower halves 2a and 2b, and a disk storage chamber formed in the disk housing 2. 3, a hard disk (magnetic disk) HD showing a specific example of a disk-shaped information recording medium rotatably accommodated in the disk 3, a shutter member 4 also rotatably accommodated in the disk storage chamber 3, and the shutter member A shutter spring 5 or the like is provided to urge the disk 4 in the direction of the surface of the disk storage chamber 3 and urge the head insertion opening 7 of the disk housing 2 in the closing direction. Then, the opening surfaces of the upper and lower halves 2a and 2b are overlapped, and the contact surfaces are fused, for example, by ultrasonic processing or bonded with an adhesive, or the upper and lower halves 2a and 2b are fixed with screws. The disk cartridge 1 is integrally formed by using a fixing means such as fastening with a.
[0033]
A disk housing 2 of the disk cartridge 1 is formed of a thin container having a substantially square shape in plan view, and a grip groove 2k that is gripped by a user to take out the disk cartridge 1 from the disk recording / reproducing apparatus on both sides thereof. And a grip notch 2c for a changer grip. The grip notch 2c of the disk housing 2 has a role for surely performing an ejecting operation when the disk cartridge 1 is automatically removed from the disk storage device by the cartridge changer device.
[0034]
At the front part of the disk housing 2, that is, the front part of the disk cartridge 1 on the insertion side to the cartridge insertion port of the disk recording / reproducing apparatus, the center of the curvature radius is from above the center line L in the insertion direction. An offset arc portion 6 is formed by offsetting to one side (left side as viewed from the front side of the cartridge in FIG. 25). As a result, the length of one side surface 2d of the disk housing 2 is set shorter than the length of the other side surface 2e, and an appropriate amount of mutual contact portions are cut into the offset arc portion 6 on the short side surface 2d side. A laterally long head insertion opening 7 extending in the lateral direction by opening the opening is opened.
[0035]
In the head insertion port 7, a new information signal is written to the information recording unit during recording with respect to the hard disk HD accommodated in the disk housing 2, and an information signal recorded in advance in the information recording unit is read during reproduction. A magnetic head showing one specific example of the read / write head is taken in and out. As shown in FIG. 26, the head insertion opening 7 can be opened and closed by an arcuate shutter plate 4 a provided at the tip of the shutter member 4 accommodated in the disk accommodating chamber 3. In addition to the shutter plate 4a, the shutter member 4 has a core hole opening / closing plate 4b that opens and closes a center core hole 9 formed in a substantially central portion of the lower half 2b, and a shutter is provided at one end of the core hole opening / closing plate 4b. The plates 4a are integrally provided so as to intersect at right angles.
[0036]
The base end portion of the shutter member 4, that is, the other end of the core hole opening / closing plate 4b is pivotally supported by a fulcrum shaft 2f provided to be deviated from the center of the rear portion of the lower half 2b toward the long side surface 2e. ing. By rotating the shutter member 4 about the fulcrum shaft 2f, the shutter plate 4a moves along the inner surface of the offset arc portion 6 and the core hole opening / closing plate 4b moves along the inner surface of the disk storage chamber 3. To do. When the shutter member 4 is on the short side surface 2d side, the shutter plate 4a closes the head insertion opening 7, and the core hole opening / closing plate 4b closes the center core hole 9. On the other hand, when the shutter member 4 moves to the long side surface 2e side, the shutter plate 4a opens the head insertion opening 7, and the core hole opening / closing plate 4b opens the center core hole 9. Therefore, the core hole opening / closing plate 4b of the shutter member 4 is provided with a shutter notch 4c that can completely open the center core hole 9 when the shutter is opened.
[0037]
The shutter member 4 is constantly urged in a direction to close the head insertion opening 7 by a shutter spring 5 made of a torsion coil spring. The shutter spring 5 is loosely fitted to a support shaft 2g provided with a coil portion biased further toward the long side surface 2e than the fulcrum shaft 2f of the lower half 2b. The spring piece 5a protruding from one end of the coil portion of the shutter spring 5 is in contact with the inner surface of the lower half 2b, and the spring piece 5b protruding from the other end of the coil portion is near the base end portion of the core hole opening / closing plate 4b. It is locked to the provided spring receiving piece 4d.
[0038]
Further, the core hole opening / closing plate 4b of the shutter member 4 is provided with an operation arm 4e projecting in an arc shape on the opposite side to the shutter notch 4c, and an operation claw 4f is integrally formed at the tip of the operation arm 4e. Is provided. In this operation claw 4f, a step portion is set in consideration of the thickness of the hard disk HD, and the center of the operation claw 4f is exposed to the outside from the joint surface of the upper and lower halves 2a and 2b by this step portion. ing. Thus, the operation arm 4e of the shutter member 4 passes through the notch 2i provided in the arc-shaped side wall 2h formed at the rear portion of the lower half 2b, and the operation claw 4f is continuous with the tip of the operation arm 4e. Is exposed in a guide groove 10 extending in the front-rear direction on the long side surface 2e of the disk housing 2 from a notch 2j provided on the joining surface of the upper and lower halves 2a, 2b.
[0039]
The guide groove 10 has a wide portion 10a that is wide in the thickness direction (overlapping direction) set on the front side of the disk casing 2, and a narrow width in the vertical direction that is set on the rear side of the disk casing 2. Opening / closing set between the narrow portion 10b, the introduction portion 10c formed at the tip of the wide portion 10a and also having a wide width and inclined inward, and the rear portion of the wide portion 10a and the front portion of the narrow portion 10b And an operation unit 10d. In the opening / closing operation part 10d of the guide groove 10, an inclined surface 10e is formed in each of the upper half 2a and the lower half 2b in a portion continuing from the wide part 10a to the narrow part 10b. An action piece of a shutter opening lever, which will be described later, is guided so that the action piece can smoothly move from the wide portion 10a to the narrow portion 10b.
[0040]
The depth of the narrow portion 10b of the guide groove 10 is formed sufficiently deeper than the depth of the wide portion 10a. As a result, the operation claw 4f can be removed from the guide groove 10 when the shutter member 4 is fully opened. So that it does n’t jump out. The side surface of the opening / closing operation part 10d having such a step is formed by a part of the arc-shaped side wall 2h described above, and the outer surface thereof is smoothly continued in an arc shape. The operation claw 4 f of the shutter member 4 described above is positioned in the narrow portion 10 b of the guide groove 10, and normally only the tip of the operation claw 4 f protrudes into the guide groove 10.
[0041]
The hard disk HD that is rotatably accommodated in the disk housing chamber 3 of the disk housing 2 is constituted by a disk-shaped disk-shaped information recording medium whose upper and lower surfaces are information recording surfaces by a magnetic recording method. A center core 11 attracted by a magnet of a spindle motor showing a specific example of the disk drive device is fixed to the central portion of the hard disk HD and is integrally formed.
[0042]
The center core 11 is set so as to correspond to the center core hole 9 provided in the lower half 2b. When the center core hole 9 is opened by the rotation of the core hole opening / closing plate 4b, a turn inserted from the center core hole 9 is performed. It is brought into contact with a table-integrated spindle motor. A ring-shaped magnet is fitted and integrally provided in the rotating portion of the spindle motor, and the hard disk HD is chucked by the spindle motor by the magnet's attracting force and is integrally rotated.
[0043]
As shown in FIG. 26, an erroneous erasure prevention tab 13 for switching presence / absence of a write-protect hole is provided on one side of the rear portion of the disk cartridge 1. Positioning holes 14a and 14b for loading the disk cartridge 1 to a predetermined position of the disk recording / reproducing apparatus are provided in the vicinity of the erroneous erasure prevention tab 13 and in the vicinity of the shutter spring 5 positioned on the opposite side. ing.
[0044]
As the material of the upper and lower halves 2a and 2b having such a structure, for example, a synthetic resin material such as polycarbonate PC is preferable, but other synthetic resins can be used as well as metals such as aluminum alloys. In this embodiment, the shutter member 4 is made of polycarbonate PC as the shutter plate 4a, and a stainless steel plate is used as the core hole opening / closing plate 4b. The two-color molding of the shutter member 4 is integrally molded. However, the entire shutter member 4 may be formed of a synthetic resin material such as polycarbonate PC, and the entire shutter member 4 may be formed of a metal material such as a stainless steel plate.
[0045]
[2] External structure of disc recording / reproducing apparatus (FIGS. 1, 2, 3A, and 4A)
The disk recording / reproducing apparatus 20 is applied to a removable disk storage device that holds a cartridge holder loaded with a disk cartridge 1 in a horizontal state and moves it up in the vertical direction perpendicular to the horizontal direction to lift it up.
[0046]
As shown in FIG. 1, the disk recording / reproducing apparatus 20 has an opening on the upper surface side that is large enough to accommodate a disk drive device, a shutter opening mechanism, a recording / reproducing mechanism, a holder lift mechanism, and the like, which will be described later. The mechanical chassis 21, a top cover 22 as an exterior cover that covers the opening on the upper surface of the mechanical chassis 21, a cartridge holder 23 fixed to the inside of the top cover 22, and the mechanical chassis 21 are slidably supported. And a slide plate 24. The top cover 22 is placed on the cartridge holder 23 and screwed with a plurality of fixing screws 25 so as to move up and down integrally with the cartridge holder 23. As other means for fixing the top cover 22, various means such as pinning and adhesion using an adhesive can be applied.
[0047]
As shown in FIG. 3A and the like, the mechanical chassis 21 is formed of a relatively shallow rectangular housing having a bottom plate 21a as a bottom and an appropriate size space on both upper and lower surfaces. A top cover 22 is disposed so as to cover the space. The topper cover 22 is a rectangular casing with a relatively low ceiling provided with a space of an appropriate size on the lower surface of the upper surface plate 22a. As shown in FIG. 2, the upper surface plate 22a includes a plurality of through holes 26a. A screw hole 26b is provided. A horizontally long opening window 27 having a width slightly larger than the width of the disk cartridge 1 is provided at the center of the front surface of the top cover 22.
[0048]
[3] Internal structure of disk recording / playback device
(3-1) Disk drive mechanism (FIGS. 3B and 4B)
The disk recording / reproducing apparatus 20 includes a spindle motor 30 as a disk driving apparatus having a configuration as shown in FIGS. 3B and 4B. The spindle motor 30 is a turntable integrated motor in which a turntable 31 on which a hard disk HD of the disk cartridge 1 is chucked is integrally provided on a rotating shaft 32.
[0049]
The spindle motor 30 is fitted and attached to a through hole 21b provided so as to penetrate both the front and back surfaces at a substantially central portion on the front side of the mechanical chassis 21. The spindle motor 30 has a disk-like base member 33 fixed to the back surface of the bottom plate 21a of the mechanical chassis 21 by fixing means such as screws, and a rotating shaft 32 rotatably held by the base member 33 is provided. It penetrates the through hole 21b upward and protrudes above the bottom plate 21a. A turntable fixed to the rotating shaft 32. 1 also penetrates the through hole 21b and protrudes above the bottom plate 21a.
[0050]
A magnet 34 for attracting the center core 11 of the hard disk HD is attached to the turntable 31 of the spindle motor 30. By attracting the center core 11 by the magnetic force of the magnet 34 and chucking the hard disk HD to the turntable 31, the hard disk HD is integrated with the spindle motor 12 and is driven to rotate within the disk housing 2.
[0051]
  (3-2) Holder lift mechanism (FIGS. 5-9, 13-23)
  As shown in FIG. 5 and the like, the holder lift mechanism 40 includes a cartridge holder 23 on which the disk cartridge 1 is detachably mounted, a slide plate 24 supported on the mechanical chassis 21 so as to be slidable in the front-rear direction, and the slide The plate 24 is always urged to the side opposite to the opening window 27.Is the second biasing meansIt is comprised from a pair of coil springs 41 and 41 grade | etc., As an elastic member.
[0052]
  As shown in FIG. 5, the cartridge holder 23 includes a rectangular upper surface plate 23a that is slightly smaller than the mechanical chassis 21 as viewed from above, side plates 23b and 23c that are continuous on the left and right sides of the upper surface plate 23a, and both side plates 23b. 23c, holding pieces 23d and 23e bent inward continuously, and a cartridge insertion port 28 is set at the front of the space surrounded by the holding pieces 23d and 23e. Therefore, the inside of the cartridge holder 23 is a space having a size corresponding to the disk cartridge 1, and the disk cartridge 1 is inserted and removed from the cartridge insertion port 28. And the disk cartridge 1 is heldIt is a recording medium holderThe cartridge holder 23 isIt is a recording medium loading unitThe cartridge is loaded into the spindle motor 30 of the cartridge loading unit.
[0053]
Further, presser plate springs 42a and 42b are attached to both sides of the upper surface plate 23a of the cartridge holder 23 so as to be slightly biased above the holding pieces 23d and 23e. The presser plate springs 42a and 42b urge the inserted disc cartridge 1 toward the holding plates 23d and 23e, thereby positioning the disc cartridge 1 in the height direction with respect to the cartridge holder 23. A plurality of peep holes 43a and 43b are provided in the front and rear and the center of the presser plate springs 42a and 42b of the upper surface plate 23a so that the inside can be peeped.
[0054]
In addition, guide pins 44a and 44b projecting laterally are provided on the front and rear sides of the left and right side plates 23b and 23c of the cartridge holder 23, respectively. The guide pins 44a and 44b are slidably engaged with vertical grooves 45 and 45 that are provided on the left and right side plates 21c and 21d of the mechanical chassis 21 and extend vertically. .
[0055]
As shown in FIG. 7, the slide plate 24 is provided so as to be continuously raised on the left and right sides of the lower surface plate 24a and the lower surface plate 24a, which is slightly larger than the cartridge holder 23 when viewed from the top. Side plates 24b and 24c are provided. As shown in FIG. 9, a bulging portion 24d is formed on the lower surface plate 24a of the slide plate 24 by bulging the inner side in the width direction upward with a predetermined width, thereby lowering the bulging portion 24d. A plate storage portion 24e having a predetermined gap is set. Further, elongated holes 46 extending in the front-rear direction are provided at the four corners of the lower surface plate 24a, and the four axial pins 47 attached to the mechanical chassis 21 are slidably engaged with the elongated holes 46, respectively. Has been. The slide pins 24 are supported by these shaft pins 47 so as to be movable only in the front-rear direction, with the movement in the left-right direction being restricted with respect to the mechanical chassis 21.
[0056]
Direction change grooves 48 are provided in front of and behind the left and right side plates 24b and 24c of the slide plate 24 so as to correspond to the guide pins 44a and 44b of the cartridge holder 23, respectively. The direction changing groove 48 is composed of an inclined groove 48a which is set on the cartridge insertion port 28 side and a downwardly inclined groove 48a and a horizontal groove 48b which extends continuously rearward from the upper portion of the inclined groove 48a. 48, the guide pins 44a and 44b pass through, respectively, and their tips are engaged with the vertical grooves 45 as described above. A direction changing mechanism is constituted by the direction changing groove 48, the vertical groove 45, and the guide pin 44. By supporting the cartridge holder 23 on the mechanical chassis 21 via the direction changing mechanisms provided at the four positions, the cartridge is changed. The holder 23 can be moved in a vertical direction orthogonal to the horizontal direction while being substantially horizontal.
[0057]
As shown in FIGS. 5 to 7, one end of the coil spring 41 described above is engaged with the rear end portions of the left and right side plates 24 b and 24 c of the slide plate 24. The other ends of the coil springs 41 are respectively engaged with left and right spring receiving pins 49 erected on the mechanical chassis 21, and the slide plate 24 is moved by the spring force of the coil springs 41 and 41 into the cartridge insertion port 28. It is always urged to the other side.
[0058]
In this way, the bulging portion 24 d of the slide plate 24 slidably supported by the mechanical chassis 21 is disposed at a central opening 50 through which the upper portion of the spindle motor 30 passes, and obliquely behind the central opening 50. The cam hole 51 is provided. The cam hole 51 is formed of an L-shaped opening that is long in the front-rear direction, and a corner portion that is convex on the inside is used as a cam, and a stopper portion 51a is formed on a lateral edge that forms one side of the cam. The inclined cam portion 51b is formed on the vertical edge extending in the direction intersecting with this. The inclined cam portion 51b of the cam hole 51 has an inclined surface that is wide on the stopper portion 51a side. Therefore, the corner portion is set to an angle slightly larger than 90 degrees.
[0059]
As shown in FIG. 7 and the like, a cam pin 53 erected on the trigger plate 52 is selectively brought into contact with the stopper portion 51a or the inclined cam portion 51b of the cam hole 51 of the slide plate 24. As shown in FIGS. 9A and 9B, the trigger plate 52 provided with the cam pin 53 is housed in the plate housing portion 24e of the slide plate 24 and is rotatably supported by the mechanical chassis 21 by the support shaft 54. ing. Similarly, the rotation amount of the trigger plate 52 is restricted by a stopper pin 55 fixed to the mechanical chassis 21.
[0060]
  In other words, the trigger plate 52 is provided with an arcuate arc groove 56 having the support shaft 54 as a rotation center, and a stopper pin 55 is slidably engaged in the arc groove 56. Therefore, the trigger plate 52 can be rotated within a range in which the stopper pin 55 moves in the arc groove 56. The trigger plate 52 has one end locked on the free end side and the other end locked on the slide plate 24.1st biasing meansThe return spring 57 is always urged in a direction approaching the central opening 50.
[0061]
  Further, the trigger plate 52 projects toward the cartridge holder 23 at the free end.A contact memberAn operation pin 58 and a trigger pin 59 which is set radially inward of the arc groove 56 and protrudes on the opposite side of the operation pin 58 are provided upright and integrally. One operation pin 58 protrudes into a space surrounded by the upper surface plate 23 a of the cartridge holder 23 and is positioned on the movement locus of the disk cartridge 1. Further, as shown in FIG. 17, the other trigger pin 59 is slidably engaged with an arc-shaped trigger groove 60 provided in the mechanical chassis 21, and a tip portion thereof is inserted into a cam hole of a mode cam described later. It has become so. Therefore, the amount of rotation of the trigger plate 52 by the combination of the trigger groove 60 and the trigger pin 59 is equal to the amount of rotation of the trigger plate 52 by the combination of the arc groove 56 and the support shaft 54.
[0062]
The slide plate 24 is integrally provided with a cam lock pin 61 erected in the same direction as the trigger pin 59. The cam lock pin 61 is slidably engaged with a linear lock groove 62 similarly provided in the mechanical chassis 21, and the tip thereof is inserted into the cam recess 67 of the mode cam 64. ing.
[0063]
As shown in FIGS. 14 and 17, the mode cam 64 is disposed on the back side of the bottom plate 21a of the mechanical chassis 21, and is rotatably supported by a rotating shaft 65 fixed to the bottom plate 21a by fixing means such as caulking. ing. The mode cam 64 is prevented from coming off by a retaining ring 65a engaged with the free end of the rotating shaft 65.
[0064]
As shown in FIGS. 15 and 16 in an enlarged manner, the mode cam 64 has a gear portion 64a composed of a spur gear having a large number of teeth formed over the entire outer peripheral surface, and a gear portion 64a on one side of the gear portion 64a. It is composed of a disc-shaped cam portion 64b formed integrally, and is configured to be rotatable around a rotation shaft 65 inserted through a through hole 64c provided in the center portion. The outer peripheral surface of the cam portion 64b of the mode cam 64 forms an outer peripheral cam surface 66, and a part of the outer peripheral cam surface 66 is provided with a cam notch portion 66a for unlocking which is recessed radially inward. It has been. One end edge 66b in the circumferential direction of the cam notch 66a extends linearly in the radial direction, while the other end edge 66c is formed in an arc shape.
[0065]
A cam recess 67 that opens to the end surface is provided on the end surface of the cam portion 64 b, and the trigger pin 59 and the cam lock pin 61 described above are inserted into the cam recess 67. The cam recess 67 includes an outer cam surface 67a formed to extend in the circumferential direction on the radially outer side, and a first pitch formed to extend in a radial direction from one end of the outer cam surface 67a. A surface 67b, an inner lock portion 67c formed continuously on the radially inner side of the first pitch surface 67b, an outer lock portion 67d formed continuously on the other end of the outer cam surface 67a, and the outer lock The second pitch surface 67e is formed so as to be continuously curved between the portion 67d and the inner lock portion 67c.
[0066]
The outer locking portion 67d of the cam recess 67 is set in the vicinity of the other end edge 66c of the cam cutout portion 66a, and the inner locking portion 67c is set at a position displaced by approximately 270 ° therefrom. A mode switch 68 is set between the inner lock portion 67c and the outer lock portion 67d and inside the cam notch portion 66a in the radial direction. The material of the mode cam 64 is preferably engineering plastic having high mechanical strength such as polycarbonate, but aluminum alloy or other metal materials can also be used.
[0067]
The mode switch 68 for controlling the rotation of the mode cam 64 is attached to the mode cam 64 by fixing means 69 such as heat welding as shown in FIGS. The mode switch 68 is made of a metal leaf spring having three arm pieces 68a. At the tip of each arm piece 68a, there is a contact 68b which is made flexible by being bent in an arc shape. Each is fixed. These contacts 68b are in contact with a wiring pattern 70a formed on one surface of the sub wiring board 70 interposed between the mode cam 64 and the mechanical chassis 21.
[0068]
The sub-wiring board 70 is fixed to the mechanical chassis 21 by fixing means such as fixing screws inserted through screw holes 70b provided at a plurality of locations, and the connection terminal 70c continuous to one end of the wiring pattern 70a is connected to the connection tool 71. Has been. As shown in FIG. 14, the connecting device 71 is fixed to a main wiring board 72 that can block most of the lower opening of the mechanical chassis 21, and the main wiring board 72 includes a fixing screw or the like. It is fixed to the mechanical chassis 21 by fixing means.
[0069]
A connection tool 72a having a large number of connection pins is provided at a portion protruding from the mechanical chassis 21 of the main wiring board 72, and is electrically connected to an external power source via the connection terminal 72a. Electric power for driving the spindle motor 30 and the like is supplied. In FIG. 14, reference numeral 30a denotes a flexible printed wiring board led out from the spindle motor 30, and a wiring device 30b attached to the back surface of the main wiring board 72 is connected to one end of the flexible printed wiring board 30a. ing.
[0070]
A cam drive mechanism 74 for controlling the rotation of the mode cam 64 is provided in the lower opening of the mechanical chassis 21. The cam drive mechanism 74 includes a drive motor 75 fixedly supported by the mechanical chassis 21, a worm 75 a fixed to the rotation shaft of the drive motor 75, a worm gear 75 b meshed with the worm gear 75 b, and the worm gear 75 b and the mode cam 64. It is comprised from the reduction gear train 76 which has several gears which connect between the gear parts 64a so that power transmission is possible.
[0071]
The rotation of the mode cam 64 by the cam drive mechanism 74 is controlled according to the rotation angle from the mode switch 68 fixed to the mode cam 64 on the wiring pattern 70a of the sub wiring board 70 fixed to the mechanical chassis 21. This is performed based on the electrical signal generated by the operation. The contents of control by the mode cam 64 will be described in detail later.
[0072]
The mechanical chassis 21 may be made of a metal material such as an aluminum alloy or a stainless steel plate, or may be engineering plastic or other synthetic resin having high mechanical strength such as polycarbonate. Moreover, as a material of the cartridge holder 23, the slide plate 24, and the trigger plate 52, metal sheet metal materials, such as an electrogalvanized steel plate and a stainless steel plate, can be used, for example.
[0073]
(3-3) Shutter opening mechanism (FIGS. 24, 26 to 28)
The shutter opening mechanism 77 is for opening the head insertion port 7 of the disk cartridge 1 mounted on the cartridge holder 23 with the disk housing 2 as a trigger. As shown in FIG. Is disposed on the side plate 23b.
[0074]
As shown in FIG. 24 and the like, the shutter opening mechanism 77 includes a shutter opening lever 78 made of a balance-like arm member, and a coil spring 79 that urges the shutter opening lever 78. The shutter opening lever 78 includes a lever main body 78a having a U-shaped cross section, an input piece 78b serving as a scanning end projecting away from both sides of the lever main body 78a in the lateral direction, and a working piece 78c serving as a working end. A contact portion 78d that protrudes on the movement track of the disk cartridge 1 is provided at the tip of the input piece 78b.
[0075]
In order to attach the shutter opening lever 78 to the cartridge holder 23, a pair of pin support pieces 36a and 36b are formed on the side plate 23b of the cartridge holder 23 by folding a part between the front and rear openings 35a and 35b up and down. Is provided. A lever main body 78a of the shutter opening lever 78 is interposed between the pin support pieces 36a and 36b. The pin hole provided in each pin support piece 36a and 36b and the pin hole provided in the lever main body 78a have a head at one end. A shutter opening lever 78 is supported on one side of the cartridge holder 23 so as to be swingable in the horizontal direction by passing through the shaft pin 37 having a shaft and crimping the other end of the shaft pin 37.
[0076]
In this state, the input piece 78b of the shutter opening lever 78 is opposed to the rear opening 35b of the cartridge holder 23, and the action piece 78c is opposed to the front opening 35a. A coil portion of a coil spring 79 is loosely fitted to the shaft pin 37 that axially supports the shutter opening lever 78 on the cartridge holder 23, and a spring piece 79a continuous with one end of the coil portion contacts the side plate 23b. The spring piece 79b continuing to the other end of the coil portion is in contact with the lever main body 78a. Due to the spring force of the coil spring 79, the input piece 78b of the shutter opening lever 78 is urged in a direction to enter the opening 35b, and as a reaction, the action piece 78c is urged in a direction to escape from the opening 35a.
[0077]
As shown in FIG. 28, on the inner surface of the lever main body 78a to limit the amount of rotation of the shutter opening lever 78, an input side stopper portion 78e for preventing the input piece 78b from entering the opening 35b by a predetermined amount or more is provided. A working side stopper portion 78f that prevents the working piece 78c from entering the opening 35a by a predetermined amount or more is set. The input piece 78b of the shutter opening lever 78 enters the wide portion 10a through the introduction portion 10c of the guide groove 10 of the disc cartridge 1, and the action piece 78c passes through the operation portion 10d of the guide groove 10 and enters the narrow portion 10b. Get in.
[0078]
As the function of the input piece 78b of the shutter opening lever 78, it functions not only as an input part for operating force but also as a positioning function in the horizontal direction of the disk cartridge 1, and it is suitable for maintaining a certain degree of rigidity. Since it is required to have elasticity, in this example, it is formed so as to be wide in the width direction of the guide groove 10, and the contact portion 78 d is formed by bending the tip portion in the depth direction of the guide groove 10. Is formed. Therefore, the rigidity in the width direction (groove width direction) of the guide groove 10 of the input piece 78b is higher than the rigidity in the depth direction (groove depth direction) of the guide groove 10 orthogonal thereto. The piece 78b is not easily deformed in the groove width direction.
[0079]
On the other hand, since the function of the action piece 78c of the shutter opening lever 78 is mainly to press the operation claw 4f of the shutter member 4, it is bent in the depth direction of the guide groove 10 from the vicinity of the lever body 78a in this example. Therefore, the horizontal rigidity is increased. Accordingly, the rigidity of the action piece 78c in the groove width direction is lower than the rigidity in the groove depth direction, so that the action piece 78c is likely to be elastically deformed in the groove width direction. It is possible to follow up and down play of the disc cartridge 1 held.
[0080]
Further, the side plate 23b on the shutter opening mechanism 77 side of the cartridge holder 23 is provided on the rear side of the pin support pieces 36a, 36b with an erroneous insertion prevention convex portion 38 for preventing erroneous insertion of the disk cartridge 1. It has been. The erroneous insertion preventing convex portion 38 is formed by projecting a part of the side plate 23b inward in a cylindrical shape. The erroneous insertion preventing convex portion 38 corresponds to the guide groove 10 of the disc cartridge 1, and the disc cartridge 1 is completely inserted only when the guide groove 10 is inserted in alignment with the erroneous insertion preventing convex portion 38. If they do not match, the disc cartridge 1 is prevented from being inserted, thereby determining whether the disc cartridge 1 is inserted properly.
[0081]
In addition, stopper pieces 39a and 39b are provided at the rear end portions of both side plates 23b and 23c of the cartridge holder 23 by folding a part thereof inward. These stopper pieces 39a and 39b are for preventing the disc cartridge 1 from being inserted more than a predetermined amount.
[0082]
Thus, the operation claw 4f of the shutter member 4 is positioned in the narrow portion 10b of the guide groove 10 of the disk cartridge 1, and the operation claw 4f is pressed by the action piece 78c of the shutter opening lever 78, whereby the shutter member 4 is pressed. Is rotated against the spring force of the shutter spring 5, and the head insertion opening 7 and the center core hole 9 are both opened.
[0083]
(3-4) Recording / reproducing mechanism (FIGS. 10 to 12)
As shown in FIGS. 10 to 12, the recording / reproducing mechanism 80 is disposed at the rear portion of the mechanical chassis 21, and includes a dog-leg type rotary actuator 81 as a rotation support member, and a tip of the rotary actuator 81. It includes a pair of upper and lower sliders 82 that are floatably attached to the unit, and an actuator support base 83 that rotatably supports the rotation actuator 81. The actuator support base 83 is placed on the mechanical chassis 21 and fastened and fixed by fixing means such as mounting screws.
[0084]
The rotation actuator 81 is fixed to one end of the rotation arm 81a and a rotation arm 81a rotatably supported by an actuator support base 83 fastened and fixed to the mechanical chassis 21 by fixing means such as a mounting screw. The drive coil 81b and a pair of mount plates 81c fixed to the other end, a pair of suspensions 81d fixed to the mount plate 81c, and the like. A rotating arm 81a of the rotating actuator 81 is rotatably supported on an actuator support base 83 via a bearing 81e, and a fan-shaped drive coil 81b around which a copper wire is wound is connected to the rotating arm 81a. It is engaged and held in a bifurcated portion formed on one side.
[0085]
Further, step portions are provided on both upper and lower surfaces opposite to the bifurcated portion of the rotating arm 81a, and the base end portion of the mount plate 81c is fitted to the step portion, and the base end portion is spot welded, caulked or A pair of mount plates 81c are arranged opposite to each other with a predetermined gap in the vertical direction by being fixed by a fixing means such as an adhesive. The base end portion of the suspension 81d is fixed to the inner surface of the distal end portion of the mount plate 81c by fixing means such as spot welding, caulking or adhesive, and the slider 82 is attached to the distal end portion of each suspension 81d. In this way, the rotation actuator 81 is formed in an L shape in plan view by connecting the rotation arm 81a and the suspension 81d arranged in an L shape with the mount plate 81c, and is a so-called dog leg shape. It is configured.
[0086]
The pair of suspensions 81d is made of a plate spring-like member having elasticity, and the rigidity of the base end portion is set low by providing an opening in the center of the base end portion side to reduce the rigidity. Thus, by lowering the rigidity of the base end portion of the suspension 81d and imparting a large flexibility to the distal end side, the slider 82 attached to the distal end portion can be easily elastically deformed in the vertical direction so that it can move up and down. It is configured. A ramp 84 is inserted between the upper and lower suspensions 81d during loading and unloading. The ramps 84 widen the leading ends of both suspensions 81d away from each other, and the upper and lower sliders 82 are connected to the hard disk HD. It is made not to contact the upper and lower sides. A magnetic head for both recording and reproduction, which is a specific example of the read / write head, is provided at each tip portion of the pair of sliders 82 so as to face each other vertically.
[0087]
The lamp 84 is disposed in the vicinity of the distal end portion of the rotation actuator 81 on the back side of the mechanical chassis 21. The lamp 84 includes a lamp arm 84a inserted between the upper and lower sliders 82, a pressing portion 81b that presses the back side of the rotating arm 81a and moves the slider 82 to the cartridge side, and the like. Further, a pair of linear guide shafts 85a and 85b which are parallel to each other are slidably inserted into the lamp 84.
[0088]
The front and rear ends of the pair of linear guide shafts 85a and 85b are supported and fixed by shaft support pieces 85c and 85d, respectively, and are supported by the mechanical chassis 21 at both ends. Therefore, the ramp 84 can move back and forth between the front and rear shaft support pieces 85c and 85d, and the ramp arm 84a is disposed above the two linear guide shafts 85a and 85b. The lamp 84 is always urged toward the spindle motor 30 by a coil spring 86 as an urging member.
[0089]
One end of the coil spring 86 is locked to a spring locking piece 84 c provided on the lamp 84, and the other end is locked to a spring receiving pin 21 e fixed to the mechanical chassis 21. The forward movement due to the spring force of the coil spring 86 is limited by a stopper pin that is disposed between the pair of linear guide shafts 85a and 85b and fixed to the mechanical chassis 21 and does not appear in the figure.
[0090]
In addition, a flexible printed wiring board 87 is attached to the middle part of the turning arm 81a of the turning actuator 81 so as to cover the upper surface thereof. The flexible printed wiring board 87 is connected to a connection tool 88 fixed to the back surface of the main wiring board 72 via a flexible cable portion 87a. On the main wiring board 72, a predetermined wiring pattern is printed and formed by a conductor, and an electronic circuit is formed by electrically connecting a microcomputer, IC, resistor, amplifier and other electronic components to the wiring pattern. A control device for driving and controlling the playback device 20 is configured.
[0091]
On the actuator support base 83 that rotatably supports the rotation actuator 81, a flat magnet 89 that is curved in an arc shape is placed and fixed so as to face the drive coil 81b from below. This magnet 89 has NS poles magnetized in the surface direction (for example, the side closer to the spindle motor 30 is the S pole and the far side is the N pole), and the magnet 89 and the drive coil 81b are used as a voice coil. A motor is configured.
[0092]
By adjusting the magnitude of the magnetic force acting between the drive coil 81b and the magnet 89, the rotation position of the rotation actuator 81 is automatically controlled within a predetermined region. Then, the voice coil motor of the rotation actuator 81 does not generate torque outside the automatic control region, and is rotated by the mode cam 64 described above and locked at a predetermined rotation position. Therefore, an arm lock pin 90 that protrudes downward is provided in the middle part of the rotary arm 81a on the slider 82 side.
[0093]
As shown in FIG. 17, the arm lock pin 90 passes through an arc-shaped elongated hole 91 provided in the mechanical chassis 21, and a tip portion of the arm lock pin 90 can come into contact with the cam portion 64 b of the mode cam 64. Therefore, the rotation actuator 81 can move in a direction toward the spindle motor 30 and in a direction away from the spindle motor 30 within the range of the long hole 91 with which the arm lock pin 90 is engaged.
[0094]
Thus, the state in which the arm lock pin 90 of the rotation actuator 81 is in sliding contact with the outer peripheral cam surface 66 of the mode cam 64 indicates that the rotation actuator 81 is out of the disk cartridge 1 and “disc cartridge waiting” and “disk The cartridge is being loaded (see FIGS. 10 and 11). The state in which the arm lock pin 90 is positioned in the cam notch 66a of the mode cam 64 is a state of “disc cartridge loading end” in which the rotation actuator 81 is inserted into the disc cartridge 1 (see FIG. 12). ). Only in this disk cartridge loading end state, the rotation actuator 81 can automatically control the rotation position by the voice coil motor composed of the drive coil 81b and the magnet 89 described above.
[0095]
As shown in FIG. 5 and the like, a pair of positioning pins 92 and 92 for the disk cartridge 1 are provided on both sides of the front portion of the mechanical chassis 21. The positioning pins 92 are for positioning the disk cartridge 1 in the height direction, the front-rear direction, and the left-right direction. A pair of positioning holes provided in the disk cartridge 1 are fitted into the positioning pins 92, respectively. Thus, the disk cartridge 1 is positioned with respect to the rotation actuator 81 and the like. A cartridge detection sensor 93 for detecting whether or not the disc cartridge 1 is loaded is disposed between the left and right positioning pins 92. The presence or absence of the disk cartridge 1 is determined based on the detection signal output from the cartridge detection sensor 93.
[0096]
The disk drive device 30, the holder lift mechanism 40, the shutter opening mechanism 77, and the recording / reproducing mechanism 80 having the above configuration are assembled and integrated. First, the spindle motor 30 is fixed to the mechanical chassis 21 by passing the turntable 31 through the through hole 21b of the mechanical chassis 21 from the back surface of the bottom plate 21a. A mode cam 64 and a cam drive mechanism 74 for driving the mode cam 64 are attached to the back surface of the bottom plate 21a. Then, on the upper surface of the bottom plate 21 a, the rotation actuator 81 of the recording / reproducing mechanism 80, the lamp 84, and the like are attached, and the trigger plate 52 is attached to the mechanical chassis 21 by the support shaft 54.
[0097]
Next, the shutter opening lever 78 of the shutter opening mechanism 77 is attached to the cartridge holder 23. 7 and 8 and the like, the cartridge holder 23 is arranged inside the slide plate 24, and the four guide pins 44a and 44b projecting from the four corners are provided in the direction changing groove 48 of the slide plate 24. Are slidably fitted to each other. Thus, a holder assembly in which the cartridge holder 23 and the slide plate 24 are relatively movable within the range of the direction changing groove 48 is configured.
[0098]
Next, the holder assembly is fitted into the mechanical chassis 21, and the four guide pins 44 a and 44 b are engaged with the vertical grooves 45 provided on the side plates 21 c and 21 d, respectively, and provided at the four corners of the slide plate 24. The shaft pins 47 are respectively inserted into the long holes 46, and the holder assemblies are assembled to the mechanical chassis 21 by, for example, screwing the tip portions into the screw holes of the bottom plate 21a. Then, the cam pin 53 is fitted into the cam hole 51 of the slide plate 24 and a return spring 57 is stretched between the slide plate 24 and the trigger plate 52 to urge the trigger plate 52 toward the spindle motor 30. Further, a pair of left and right coil springs 41 are spanned between the mechanical chassis 21 and the slide plate 24 to urge the slide plate 24 toward the rotating actuator 81.
[0099]
Accordingly, the slide plate 24 is supported so as to be slidable in the front-rear direction with respect to the mechanical chassis 21, and the cartridge holder 23 is supported so as to be movable up and down with respect to the slide plate 24. Accordingly, the cartridge holder 23 can be moved in the vertical direction relative to the mechanical chassis 21 via the slide plate 24, and the horizontal position is maintained while maintaining the substantially horizontal state based on the forward / backward movement of the slide plate 24. It is lifted and lowered in the vertical direction perpendicular to the direction.
[0100]
Thereafter, the top cover 22 is attached to the upper surface of the cartridge holder 23, whereby the disc recording / reproducing apparatus 20 of this embodiment is configured as shown in FIGS.
[0101]
[4] Operation of disc recording / playback device
Next, the operation of the disk recording / reproducing apparatus configured as described above will be described.
[0102]
(4-1) State before loading disc cartridge
As shown in FIGS. 1, 3A, B, 5, 6, 9A, 10 and 13, before loading the disk cartridge 1 into the disk recording / reproducing apparatus 20, the cartridge holder 23 is in a horizontal state. The top cover 22 that is lifted and fixed to the upper surface of the top cover 22 is also lifted in the same manner.
[0103]
That is, the cartridge insertion port 28 of the cartridge holder 23 is aligned with the opening window 27 provided on the front surface of the mechanical chassis 21 and the top cover 22, and the cartridge insertion port 28 is opened so that the disk cartridge 1 can be inserted. It has become. At this time, the slide plate 24 moves to the cartridge insertion port 28 side against the biasing force of the coil spring 41, and the trigger plate 52 is pulled by the spring force of the return spring 57 and attached to the spindle motor 30 side. It is energized. Further, the rotation actuator 81 is in a position where the slider 82 is retracted so as to be separated from the spindle motor 30.
[0104]
(4-2) Initial state of loading disk cartridge
Next, as shown in FIGS. 7 and 8A, the disc cartridge 1 is inserted into the cartridge insertion slot 28 from the offset arc portion 6 side. At this time, as shown in FIG. 26, the shutter opening lever 78 of the shutter opening mechanism 77 provided on the side surface portion of the cartridge holder 23 has the tip of the input piece 78b brought into the opening 35b by the spring force of the coil spring 79. As a reaction, the action piece 78c enters the opening 35a. An abutting portion 78 d provided at the tip of the input piece 78 b of the shutter opening lever 78 is located in front of the movement locus of the guide groove 10 provided in the side surface portion of the cartridge holder 23.
[0105]
At this time, as shown in FIG. 28, if an operator mistakenly inserts the disk cartridge 1 with the front and back (or up and down) reversed, the cartridge holder 23 has a side plate 23b on the side where the shutter opening mechanism 77 is provided. Is provided with an erroneous insertion preventing convex portion 38 bulging inward in the vicinity of the pin support pieces 36a, 36b that support the shutter opening lever 78 so as to be swingable. The cartridge housing 2 is brought into contact with the offset arcuate hexagonal portion on the side surface 2d side without the guide groove 10. As a result, since further insertion of the disk cartridge 1 is prevented, it is possible to know erroneous insertion of the disk cartridge 1 in the middle of the insertion operation.
[0106]
In order to eliminate this erroneous insertion state, the disk cartridge 1 is removed, and the front and rear (or the top and bottom) are reversed, and the correct posture is restored and reinserted. As a result, when the front and rear and the top and bottom of the disk cartridge 1 are inserted in the correct state, even after the offset arc portion 6 reaches the position of the erroneous insertion prevention convex portion 38, the erroneous insertion prevention convex portion 38 becomes the cartridge housing 2. Therefore, the disk cartridge 1 can be inserted further.
[0107]
Further, when the disk cartridge 1 is pressed and inserted deeply (FIG. 26), the abutting portion 78d of the shutter opening lever 78 that is largely inserted into the cartridge holder 23 abuts on the introduction portion 10c of the guide groove 10, and this introduction portion. When pressed against the inclined surface 10c, the shutter opening lever 78 is rotated in the clockwise direction in the figure against the urging force of the coil spring 79. Accordingly, the contact portion 78d of the shutter opening lever 78 enters the wide portion 10a of the guide groove 10, and the action piece 78c of the shutter opening lever 78 enters the operation portion 10d of the guide groove 10. Then, the action piece 78c is guided by the upper or lower inclined surface 10e and guided to the narrow portion 10b, enters into the back, and comes into contact with the operation claw 4f of the shutter member 4 positioned on the front side of the narrow portion 10b.
[0108]
When the disk cartridge 1 is further pressed and inserted to a predetermined position, the movement of the disk cartridge 1 is limited by the left and right stopper pieces 39a and 39b of the cartridge holder 23, and the hard disk HD housed in the disk housing chamber 3 is restricted. Corresponds to above the spindle motor 30. At this time, when the operation claw 4f of the shutter member 4 is pushed by the action piece 78c of the shutter opening lever 78 and moves to the rear end portion of the narrow portion 10b of the guide groove 10, the shutter member 4 is centered on the fulcrum shaft 2f. In FIG. 26, it is rotated clockwise. As a result, the shutter plate 4a and the core opening / closing plate 4b of the shutter member 4 move in the same direction, so that the center insertion hole 7 closed by the shutter plate 4a and the center core hole closed by the core opening / closing plate 4b until then. 9 is opened. Thereby, the operation of inserting the disk cartridge 1 into the cartridge holder 23 is completed.
[0109]
At the same time, when the disk cartridge 1 is moved to a position before the predetermined position, as shown in FIGS. 7, 8A and 9A, the offset arc portion 6 at the tip of the disk housing 2 protrudes on the movement locus. It contacts the pin 58 (this state is the same as in FIG. 19). Further, the operating pin 58 is pushed in against the spring force of the return spring 57, and the trigger plate 52 is rotated counterclockwise in FIG. Then, when the disk cartridge 1 is inserted from the front position indicated by the one-dot chain line in FIG. 7 to the predetermined position indicated by the two-dot chain line, the cam pin 53 located on the opposite side of the operation pin 58 of the trigger plate 52 is also rotated counterclockwise. Therefore, the cam pin 53 slides on the stopper portion 51a of the cam hole 51 and moves to the inclined cam portion 51b side.
[0110]
At this time, when the cam pin 53 is separated from the stopper portion 51a of the cam hole 51, the slide plate 24 is constantly urged toward the rotation actuator 81 by the pair of coil springs 41. To change from the state shown in FIG. 8A to the state shown in FIG. 8B. As a result, the guide pins 44a and 44b that have been positioned in the horizontal groove 48b in the direction changing groove 48 of the slide plate 24 until then enter the inclined groove 48a by the movement of the direction changing groove 48, while the guide pins 44a and 44b are Since the movement in the horizontal direction is limited by the vertical groove 45 and the movement is allowed only in the vertical (up and down) direction, the vertical groove 45 is guided to move to the mechanical chassis 21 side.
[0111]
  As a result, the cartridge holder 23 moves in a direction approaching the slide plate 24, and changes from the state shown in FIGS. 8A, 9A, and 19 to the state shown in FIGS. 8B, 9B, and 21 through the state shown in FIG. . As a result, the disk cartridge 1 held in the cartridge holder 23 descends in the vertical direction intersecting the horizontal direction while maintaining the substantially horizontal state,It is a recording medium loading unitThe disc is loaded into the disc loading section. Then, the disk housing 2 is placed on the positioning pins 81a, and the positioning in the height direction and the positioning in the horizontal direction are both performed, and the disk cartridge 1 is loaded and positioned in the disk loading portion at a predetermined position. .
[0112]
At the same time, the shutter member 4 is opened by the shutter opening mechanism 77 described above, and the turntable 31 of the spindle motor 30 enters the disk storage chamber 3 through the opened center core hole 9. The center core 11 of the hard disk HD accommodated in the disk cartridge 1 is attracted to the turntable 31 by the magnetic force of the magnet 34 and integrated in the rotation direction. By driving the spindle motor 30 in this state, the hard disk HD is rotationally driven at a predetermined rotational speed.
[0113]
As a result, information can be recorded and / or reproduced by the rotating actuator 81 of the recording / reproducing mechanism 80, so that the upper and lower sliders 82 provided at the tip by rotating the rotating actuator 81 are attached to the turntable 31. The hard disk HD should be exposed on both the top and bottom sides. The rotation control of the rotation actuator 81 is performed by the mode cam 64. Next, the operation of the mode cam 64 will be described.
[0114]
22A to 22D are operation explanatory views showing the rotational position of the mode cam 64 and the positional relationship among the trigger pin 59, the cam lock pin 61, and the arm lock pin 90 controlled by the cam portion 64b. 22A shows the cam position in the waiting state before loading the disk cartridge 1, and this state is at the same time as in FIGS.
[0115]
In the state shown in FIG. 22A, the trigger pin 59 is located outside the trigger groove 60 and is located at a position where it moves from the outer cam surface 67a of the cam recess 67 to the first pitch surface 67b. Therefore, the trigger plate 52 is urged toward the spindle motor 30 by the spring force of the return spring 57 as described above. Further, the cam lock pin 61 is located outside the lock groove 62 and is located near the outer cam surface 67 a of the cam recess 67. Therefore, the slide plate 24 moves to the cartridge insertion port 28 side as described above against the spring force of the coil spring 41. Furthermore, since the movement of the arm lock pin 90 is restricted by the outer peripheral cam surface 66 and the long hole 91 of the mode cam 64, the rotation actuator 81 is locked at the retracted position separated from the spindle motor 30.
[0116]
From this state, when the mode cam 64 rotates clockwise in FIG. 22A and changes to the state of FIG. 22B, the trigger pin 59 is guided by the first pitch surface 67b and moves inward in the radial direction of the cam portion 64b. 52 is rotated in the counterclockwise direction in FIG. 10 and moves backward to interlock with the insertion amount of the disk cartridge 1. At this time, since the cam pin 53 of the trigger plate 52 moves from the stopper portion 51a of the cam hole 51 to the inclined cam portion 51b, the slide plate 24 instantaneously moves to the cartridge insertion port 28 side by the spring force of the coil spring 41, The cam lock pin 61 moves in the lock groove 62 radially inward and approaches the second pitch surface 67e of the cam recess 67. On the other hand, the arm lock pin 90 is held on the outer peripheral cam surface 66 and the restriction with the elongated hole 91 is not released, so that the rotation actuator 81 is maintained in the retracted position separated from the spindle motor 30.
[0117]
Next, when the mode cam 64 rotates clockwise in FIG. 22B and changes to the state of FIG. 22C, the trigger pin 59 is guided by the first pitch surface 67b and moves inward in the radial direction of the cam portion 64b. Located inside. At the same time, the cam lock pin 61 is positioned inside the lock groove 62 and contacts the second pitch surface 67 e of the cam recess 67. As a result, both the further pivoting operation of the trigger plate 52 and the retreating operation of the slide plate 24 are restricted, so that the disc cartridge 1 is positioned at the disc loading portion at a predetermined position. On the other hand, since the arm lock pin 90 moves to the cam notch 66a after the outer cam surface 66 is finished, the arm lock pin 90 enters the cam notch 66a, and the lock by the outer cam surface 66 is released.
[0118]
Further, when the mode cam 64 rotates clockwise in FIG. 22C and changes to the state of FIG. 22D, this position is the final stop position of the mode cam 64, and the trigger pin 59 is locked by the inner lock portion 67c. At this time, since the cam cutout portion 66a and the elongated hole 91 are aligned with each other, the arm lock pin 90 can freely move in the elongated hole 91. As a result, the rotation actuator 31 can freely move from the outer peripheral side to the inner peripheral side along the information recording surface of the hard disk HD by the driving force of the voice coil motor composed of the driving coil 81b and the magnet 89. Therefore, in this state, the information signal can be read and / or written by the recording / reproducing mechanism 80 on the information recording surface.
[0119]
In this case, since the trigger pin 59 is engaged with the inner lock portion 67c and serves as a stopper, even if the mode cam 64 further rotates clockwise from the position shown in FIG. 22D, it does not rotate. Therefore, safety measures for the internal mechanism are taken.
[0120]
Next, the operation by the mode cam 64 for automatically raising the cartridge holder 23 from the state where the cartridge holder 23 is lowered (regardless of whether or not the disk cartridge 1 is loaded) will be described. The raising operation of the cartridge holder 23 can be achieved by a procedure reverse to the procedure for loading the disk cartridge 1.
[0121]
First, in the loaded state shown in FIG. 21, the cam plate 53 is moved to the spindle motor 30 side against the spring force of the coil spring 41, so that the cam pins 53 are inclined cam portions of the cam holes 51 at the positions shown in FIG. 20. It moves from 51b to the stopper portion 51a. As a result, the slide plate 24 pulls the coil spring 41 and moves to the cartridge insertion port 28 side. Therefore, the state changes from the state of FIG. 8A to the state of FIG. 8B, and the direction changing groove 48 of the slide plate 24 with which the guide pins 44a and 44b of the cartridge holder 23 are engaged moves to the cartridge insertion port 28 side. The engaging positions of the guide pins 44a and 44b are shifted from the inclined groove 48a to the horizontal groove 48b. As a result, the guide pins 44a and 44b are guided by the direction changing groove 48 and ascend the vertical groove 45, whereby the cartridge holder 23 is lifted and returned to the waiting state for loading.
[0122]
At this time, since the rotation restriction of the trigger plate 52 by the cam pin 53 is released, the trigger plate 52 is rotated clockwise by the spring force of the return spring 57 as shown in FIG. As a result, the disk cartridge 1 held by the cartridge holder 23 is pressed by the operation pin 58 of the trigger plate 52 and discharged from the cartridge insertion port 28 to the outside of the apparatus.
[0123]
The figure which shows a series of operation | movement by this mode cam 64 is FIG. FIG. 23A shows the final stop position of the mode cam 64. In this state, the rotation actuator 81 can move freely within the range of the long hole 91, and the reading / reading provided at the tip of the slider 82 is shown in FIG. Information can be recorded and / or reproduced by the writing head. The mode cam 64 starts to rotate counterclockwise from this position.
[0124]
FIG. 23B shows a state in which the arm lock pin 90 is detached from the cam cutout portion 66a of the cam portion 64b and is locked by the outer peripheral cam surface 66. At this time, the rotation actuator 81 is rotated rearward, and the tip end portion on the slider 82 side protrudes from the head insertion port 7 of the disk cartridge 1 as shown in FIG. The reason why the operation of taking out the rotation actuator 81 is performed by the mode cam 64 is that when the disk cartridge 1 is ejected from the apparatus, the read / write head must first be retracted outside the disk cartridge 1. Because there is. Thereafter, the rotation actuator 81 is kept locked at the rearward retracted position.
[0125]
Next, FIG. 23C shows a state in which the mode cam 64 continues to rotate and the second pitch surface 67e of the cam recess 67 contacts the cam lock pin 61 of the slide plate 24. Immediately after this, the second pitch surface 67e pushes up the cam lock pin 61, so that the cartridge holder 23 is pushed up and raised through the operation of the slide plate 24 described above.
[0126]
23D, when the second pitch surface 67e pushes up the cam lock pin 61 to some extent and moves the slide plate 24 to the cartridge insertion port 28 side, the cam pin 53 moves from the inclined cam portion 51b of the cam hole 51 to the stopper portion. In order to move to 51a, the trigger plate 52 is instantaneously returned to the loading standby position by the spring force of the return spring 57. At this time, the mode cam 64 continues to rotate.
[0127]
Thereafter, the rotation of the mode cam 64 is stopped at the final stop position shown in FIG. 23E. Normally, the mode cam 64 starts to rotate in the clockwise direction at the final stop position. Even if the mode cam 64 passes the final stop position and tries to rotate counterclockwise, in this state, the cam lock pin 61 is engaged with the outer lock portion 67d of the cam recess 67, and the rotation is physically restricted. Therefore, further rotation is prevented, and thus the safety measures for the internal mechanism are also achieved.
[0128]
FIG. 23F shows a state of “waiting for loading of a disk cartridge”, which is a stopped state after the reversed mode cam 64 has rotated to some extent, and is a view in the same state as FIG. 22A. At this time, since the cartridge holder 23 has already been raised, the disc cartridge 1 can be newly inserted.
[0129]
According to this embodiment, as shown in FIGS. 3A and 3B, the cartridge holder 23 is lifted up until the disk cartridge 1 is inserted into the cartridge holder 23, and the thickness of the apparatus becomes relatively thick. As shown in B, when the disc cartridge 1 is inserted, the cartridge holder 23 is lowered to reduce the thickness of the entire apparatus. Accordingly, it is possible to reduce the thickness of the entire apparatus except when the disk cartridge 1 is loaded and ejected. At the same time, the loading procedure of the disk cartridge 1 is equivalent to the slot type, and only one insertion operation is required. In addition, a removable disk storage device having excellent operability can be provided.
[0130]
FIGS. 29 to 33 show a second embodiment of the present invention, in which the disk cartridge 1 can be automatically pulled in during the loading operation of the disk cartridge 1. The second embodiment differs from the first embodiment described above in that an L-shaped lead-in groove 15 is provided on the back surface of the disk cartridge 1 and a lead-in pin 108 engaged with the lead-in groove 15 is provided. The drawing plate 105 is rotatably provided in the cartridge holder 103, and the drawing pin 108 is engaged with the drawing groove 15 so that the disk cartridge 1 is automatically drawn in the middle of loading.
[0131]
The disc recording / reproducing apparatus 100 according to this embodiment includes a mechanical chassis 101, a cartridge holder 103, and a slide plate 104 having substantially the same configuration as the mechanical chassis 21, cartridge holder 23, and slide plate 24 according to the first embodiment. In addition, a pull-in plate 105, a crank plate 106, and a return spring 107 are provided.
[0132]
The mechanical chassis 101 includes, for example, a bottom plate 101a having a substantially quadrilateral shape by bending both ends in the width direction of a sheet metal made of a stainless steel plate or the like, and side plates 101b and 101c formed continuously at both ends of the bottom plate 101a. Is provided. Similarly, vertical grooves 109a and 109b are provided in the left and right side plates 101b and 101c, respectively, and a long hole 110a through which the return spring 107 is inserted is opened in one side plate 101b. The bottom plate 101a is provided with a motor hole 110b through which the spindle motor 30 passes, a fan-shaped opening hole 110c, and an arc hole 110d formed to correspond to the opening hole 110c.
[0133]
The cartridge holder 103 has an upper surface plate 103a and left and right side plates 103b and 103c, and holding pieces 103d and 103e projecting inward are provided below the side plates 103b and 103c, respectively. One holding piece 103d is formed with a support piece 103f for rotatably supporting the pull-in plate 105. Similarly, two guide pins 111 in total are provided in front of and behind the left and right side plates 103b and 103c, respectively, and a pin for supporting the shutter opening lever 78 is provided on one side plate 103b. Support pieces 112a and 112b and front and rear openings 113a and 113b are provided.
[0134]
The slide plate 104 includes left and right side plates 104a and 104b, a front lower plate 104c continuous to the front lower surface of the side plates 104a and 104b, and a rear upper plate 104d continuous to the rear upper surface of the side plates 104a and 104b. And has a frame shape as a whole. Similarly, a total of four direction changing grooves 114 are provided in front of and behind the left and right side plates 104a and 104b, respectively, and a long hole 104e through which the return spring 107 is inserted is provided in one side plate 104a. It is open. One end of the return spring 107 is locked to the front portion of the elongated hole 104e, and the other end is locked to the rear portion of the elongated hole 110a of the mechanical chassis 101. One end of the crank plate 106 is rotatably supported by a support pin 115 on one side plate 104a side of the front lower plate 104c.
[0135]
The pull-in plate 105 is made of a disk-shaped member having a pull-in pin 108 projecting on one surface side and a connection pin 116 projecting on the other surface side, and is rotatable to the support piece 103f of the cartridge holder 103 by a rotation pin 117. It is supported by. The retracting plate 105 is provided with an arc groove 105a on the opposite side across the rotation pin 117 so as to face the retracting pin 108, and the guide pin 118 provided upright on the support piece 103f is provided in the arc groove 105a. Are slidably engaged. The retracting pin 108 of the retracting plate 105 is slidably engaged with an arc groove 119 provided in the support piece 103f, and the retracting plate 105 is clockwise and within an angular range of the arc grooves 105a and 119. It will be rotated counterclockwise.
[0136]
The basic operation of the disc recording / reproducing apparatus 100 according to the second embodiment is the same as that of the first embodiment described above, but the operation by the pull-in plate 105 is different. . FIGS. 32 and 33A to 33D are for explaining the operation by the pull-in plate 105, and FIG. 32 shows a state of waiting for loading with the cartridge holder 103 raised. 33A shows a state in which the pull-in plate 105 is reversed from the middle of rotation, FIG. 33B shows a state in which the cartridge holder 103 starts to descend, FIG. 33C shows a state in which the cartridge holder 103 is being lowered, and FIG. , The state of the completion of the lowering of the cartridge holder 103 is shown.
[0137]
Further, the lead-in hole 15 provided in the disc housing 2 of the disc cartridge 1 is formed so as to open at a position corresponding to the lead-in pin 108 protruding above the support piece 103f in a state in which the lead-in hole 15 is inserted into the cartridge holder 103. Has been. The lead-in hole 15 is composed of a vertical groove 15a that opens to the offset arc portion 6 and a horizontal groove 15b that is bent substantially perpendicularly inward from the bottom of the vertical groove 15a, and at the bottom of the horizontal groove 15b. The movement of the retracting pin 108 is limited.
[0138]
Now, as shown in FIG. 32, when the cartridge holder 103 is lifted and waiting for loading, the slide plate 104 is constantly urged in the Z direction by the spring force of the return spring 107. The movement of the slide plate 104 connected to the cartridge holder 103 via the crank plate 106 and the pull-in plate 105 is restricted by one end of the arc groove 105 a of the pull-in plate 105 being locked to the guide pin 118. .
[0139]
In such a state, when the disk cartridge 1 is inserted into the cartridge holder 103 and the insertion amount reaches a predetermined amount, the retraction pin 108 is positioned on the movement locus of the retraction hole 15. It enters into the longitudinal groove 15 a of the lead-in hole 15. When the retracting pin 108 enters the lateral groove 15b through the longitudinal groove 15a, the retracting plate 105 is rotated counterclockwise in FIG. 32 by the lateral force. Further, when the disk cartridge 1 is continuously pushed, the cartridge holder 103 starts to be automatically lowered by the above-described holder lift mechanism 40 at the switching point shown in FIG. 33A. This is because the slide plate 104 is constantly urged in the Z direction by the spring force of the return spring 107.
[0140]
When the guide pin 118 passes the switching point, the spring force of the return spring 107 acts on the retracting plate 105 via the crank plate 106, and the state shown in FIG. 33D is changed from the state shown in FIG. 33B to the state shown in FIG. Changes momentarily to the state shown. As a result, the automatic lowering of the cartridge holder 103 ends, and the disc cartridge 1 held by the cartridge holder 103 is loaded into the disc loading unit.
[0141]
According to this embodiment, the pull-in plate 105 attached to the lower surface of the cartridge holder 103 rotates according to the insertion amount of the disk cartridge 1, and the force applied to the pull-in plate 105 is reversed in the middle of the insertion so that the disk cartridge 1 is removed. Since the cartridge holder 103 is retracted, the disk cartridge 1 can be automatically retracted. Therefore, the disk recording / reproducing apparatus 100 according to the second embodiment having such a configuration can obtain the same effects as those of the first embodiment described above.
[0142]
In this embodiment, since the cartridge holder 103 is moved up and down by forward and reverse rotation of the pull-in plate 105, the above-described series of operations can be automated by configuring this mechanism in conjunction with, for example, an ejection motor. be able to. That is, the disk cartridge 1 can be manually loaded only when inserted, and the cartridge holder 103 can be automatically raised and lowered when the empty cartridge holder 103 is opened or closed and when the disk cartridge 1 is ejected. In this embodiment, as shown in FIG. 31, a reinforcing upper rear plate 104 d is provided on the upper surface of the slide plate 104, and the rear upper plate 104 d is arranged in parallel with the cartridge holder 103 so as to move up and down. It is considered that the top surface of the cartridge holder 103 to be covered is not covered.
[0143]
In the third embodiment of the present invention shown in FIG. 34, the raising / lowering operation of the cartridge holder 120 is performed by the left and right link mechanisms 125. The disc recording / reproducing apparatus 120 according to this embodiment includes a mechanical chassis 121, a cartridge holder 123, a slide plate 124, and the like. The slide plate 124 is supported by the mechanical chassis 121, and the right and left link mechanisms 125 are connected between the slide plate 124 and the cartridge holder 123 so as to be rotatable in the vertical direction.
[0144]
The left and right link mechanisms 125 include mountain-shaped link plates 126 and 127 having substantially the same shape, and springs 128 that urge one link plate 126 upward, and the lower portions of the link plates 126 and 127 slide. The plate 124 is rotatably supported at both front and rear ends. The link plates 126 and 127 are placed in the same posture, and the upper portions of the link plates 126 and 127 are rotatably supported by the cartridge holder 123, so that the cartridge holder 123 is kept in a horizontal state while maintaining the horizontal state via the left and right link mechanisms 125. It can be moved in the vertical direction perpendicular to the direction.
[0145]
As described above, when the member constituting the operation conversion mechanism of the cartridge holder can be configured so as not to cover the top surface of the cartridge holder, the cartridge holder 123 can be protruded from the apparatus when it is raised. It is.
[0146]
Further, the fourth embodiment of the present invention shown in FIGS. 35 to 37 is a slot type disk storage device using the loading mechanism according to the present invention. As shown in FIGS. 35, 36A and B, and FIGS. 37A and B, a pure slot type disk recording / reproducing apparatus 130 is realized by covering the periphery of the loading mechanism with a fixed casing 135 provided with a cartridge insertion slot 28. can do. This shows that a slot type disk storage device can be configured by diverting the loading device of the present invention as it is by preparing a new exterior fixed housing 135.
[0147]
In this embodiment, the fixed housing 135 is fastened to the mechanical chassis 131 with a plurality of fixing screws 136 and is integrally fixed. As shown in FIGS. 36B and 37B, the cartridge holder 133 disposed between the fixed housing 135 and the mechanical chassis 131 is configured to be lifted and lowered by a lift mechanism (not shown) in the fixed housing 135. ing. In the case of the fourth embodiment, like the conventional slot type disk storage device, it is undeniable that a dead space is generated on the cartridge holder when it is lowered.
[0148]
As described above, the present invention is not limited to the above embodiment. For example, in the above embodiment, information is recorded and / or reproduced by the upper and lower magnetic heads on the upper and lower surfaces of the disk-shaped information recording medium. However, the present invention can be applied to a disk storage device that records and / or reproduces information only on one of the upper and lower surfaces of the disk-shaped information recording medium. Further, in the above-described embodiment, an example in which the present invention is applied to a disk recording / reproducing apparatus capable of reproducing information recorded in advance on a disk-shaped information recording medium and recording new information has been described. It can also be applied to a disk storage device that can perform only one of the above.
[0149]
Further, although an example in which a magnetic head is used as a read / write head has been described, it is needless to say that the present invention can be applied to a disk storage device that optically records and / or reproduces information using an optical head. Note that specific application devices of the disk storage device of the present invention are related to personal AV or PC which is becoming thinner and smaller, such as digital camcorders, digital multi-cameras, portable AV devices, portable information terminal devices, removable storage devices, etc. Various devices such as storage can be listed. As described above, the present invention can be variously modified without departing from the spirit of the present invention.
[0150]
【The invention's effect】
  As explained above, the present inventionIt is a recording medium loading deviceDisk cartridge loading device and the loading deviceRecording and / or playback deviceAccording to the disk storage device, the cartridge holder is lifted until the disk cartridge is inserted into the cartridge holder, and the thickness of the device becomes relatively thick. However, when the disk cartridge is inserted, the cartridge holder is lowered and the entire device is Therefore, it is possible to reduce the thickness of the entire apparatus except when loading and unloading the disk cartridge. At the same time, the loading procedure of the disk cartridge is equivalent to that of the slot type. Since only a plug-in operation is required, an effect of providing a disk cartridge loading device having excellent operability and a disk storage device including the loading device can be obtained.
[0151]
In addition, by electrically controlling in combination with a mode cam or the like, automation of the operation of the loading mechanism can be easily achieved. Furthermore, it is possible to provide a highly reliable disk storage device while reducing the number of parts and reducing the cost as compared with the conventional disk storage device in which the spindle motor moves up and down. Furthermore, by covering the periphery of the disk cartridge loading mechanism of the present invention with a fixed housing having a cartridge insertion slot, it can be used as it is for a pure slot type disk storage device, in response to market needs. The advantage is obtained that the form of the disk storage device having the same loading mechanism can be easily and variously increased.
[Brief description of the drawings]
FIG. 1 of the present inventionRecording and / or playback deviceBRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective view showing a state before a disk cartridge is inserted, showing a first embodiment of a disk storage device.
FIG. 2 is a plan view of the disk storage device according to the first embodiment shown in FIG. 1;
FIGS. 3A and 3B show a disk storage device according to the first embodiment shown in FIG. 1, in which FIG. 3A is a side view before a disk cartridge is inserted, and FIG.
4 shows a disk storage device according to the first embodiment shown in FIG. 1. FIG. 4A is a side view showing a state after inserting a disk cartridge, and FIG.
FIG. 5 is a plan view showing the disk storage device according to the first embodiment shown in FIG. 1 before a disk cartridge is inserted.
FIG. 6 is a cross-sectional view of the disk storage device according to the first embodiment shown in FIG. 1 before a disk cartridge is inserted.
7 is an explanatory view seen from the plane side showing operations before and after loading of the disk cartridge of the disk storage device according to the first embodiment shown in FIG. 1; FIG.
8 shows the loading operation of the disk cartridge of the disk storage device according to the first embodiment shown in FIG. 1. FIG. 8A is an explanatory view viewed from the side after loading, and FIG. It is.
9 shows the loading operation of the disk cartridge of the disk storage device according to the first embodiment shown in FIG. 1. FIG. 9A is an explanatory view seen from the back side before loading, and FIG. It is.
10 is a plan view showing a state in which the disk cartridge before loading the disk cartridge of the disk storage device according to the first embodiment shown in FIG. 1 is deleted. FIG.
11 is a plan view showing a state in which the disk cartridge after the disk cartridge is loaded in the disk storage device according to the first embodiment shown in FIG. 1 is deleted; FIG.
12 is a plan view showing a state in which the disk cartridge is deleted when recording / reproducing information in the disk storage device according to the first embodiment shown in FIG. 1; FIG.
13 is a cross-sectional view of the disk storage device according to the first embodiment shown in FIG. 1 before loading a disk cartridge.
14 is a bottom view of the disk storage device according to the first embodiment shown in FIG. 1; FIG.
15 is a plan view showing a mode cam of the disk storage device according to the first embodiment shown in FIG. 1; FIG.
16 is a bottom view showing a mode cam of the disk storage device according to the first embodiment shown in FIG. 1; FIG.
17 is a cross-sectional view showing a mode cam of the disk storage device according to the first embodiment shown in FIG. 1;
18 is a cross-sectional view of the mode cam shown in FIG. 16 taken along the line XX.
FIG. 19 is a plan view showing a state of waiting for loading a disk cartridge of the disk storage device according to the first embodiment shown in FIG. 1;
20 is a plan view showing a state in which the disk cartridge of the disk storage device according to the first embodiment shown in FIG. 1 is being loaded. FIG.
FIG. 21 is a plan view showing a state where loading of the disk cartridge of the disk storage device according to the first embodiment shown in FIG. 1 is completed.
22 explains the operation of the mode cam when the disk recording / reproducing apparatus shown in FIG. 1 is automatically closed. FIG. 22A shows the start of closing, FIG. 14B shows the start of movement of the slide plate, and FIG. FIG. 4D is an explanatory diagram showing reading / writing at the time of unlocking.
23 explains the operation of the mode cam at the time of automatic ejection of the disk cartridge of the disk recording / reproducing apparatus shown in FIG. 1. FIG. 23A shows reading / writing or automatic ejection start, and FIG. When the arm is locked, Fig. C shows the start of pushing up the slide plate in the middle of ejection, Fig. D shows the moment when the disk cartridge is automatically ejected, Fig. E shows the mode cam inversion, and Fig. F shows the mode cam stopped. It is explanatory drawing which shows the time of waiting.
24 is an exploded perspective view showing a shutter opening mechanism of the disk recording / reproducing apparatus shown in FIG. 1. FIG.
25 is a perspective view showing an example of a disc cartridge used in the disc recording / reproducing apparatus shown in FIG. 1. FIG.
26 is a cross-sectional view of the disc recording / reproducing apparatus shown in FIG. 1 with the disc cartridge shown in FIG. 25 loaded therein.
27 is a side view showing a state in which the disc cartridge shown in FIG. 25 is loaded in the disc recording / reproducing apparatus shown in FIG. 1;
28 is a plan view showing a state in which the disc cartridge shown in FIG. 25 is erroneously inserted into the disc recording / reproducing apparatus shown in FIG.
FIG. 29 of the present inventionRecording and / or playback deviceFIG. 9 is a perspective view showing an external appearance of a disk storage device according to a second embodiment before a disk cartridge is inserted.
FIG. 30 is a side view of the disk storage device according to the second embodiment of the present invention before the disk cartridge is inserted.
FIG. 31 is an exploded perspective view showing a second embodiment of the disk storage device of the present invention.
FIG. 32 shows a second embodiment of the disk storage apparatus of the present invention and is a plan view for explaining the pull-in operation.
FIGS. 33A and 33B are diagrams for explaining the pull-in operation of the disk cartridge of the second embodiment of the disk storage device of the present invention, where FIG. A is a switching point, FIG. B is a descent start, and FIG. FIG. 4D is an explanatory view showing the completion of the descent.
FIG. 34 of the present inventionRecording and / or playback deviceA third embodiment of the disk storage device is shown, in which FIG. A is a cross-sectional view before loading the disk cartridge, and FIG. B is a cross-sectional view after loading the disk cartridge.
FIG. 35 shows the present invention.Recording and / or playback deviceFIG. 10 is a perspective view showing an external appearance of a disk storage device according to a fourth embodiment before a disk cartridge is inserted.
FIG. 36 shows a disk storage device according to the fourth embodiment shown in FIG. 35. FIG. 36A is a side view showing a state before the disk cartridge is inserted, and FIG.
FIG. 37 shows a disk storage device according to the fourth embodiment shown in FIG. 35, in which FIG. A is a side view after the disk cartridge is inserted, and FIG.
FIGS. 38A and 38B show a first example of a conventional disk recording / reproducing apparatus, in which FIG. A is a cross-sectional view of a state before inserting a disk cartridge, and FIG. FIG.
FIG. 39 shows a second example of a conventional disc recording / reproducing apparatus, in which FIG. A is a cross-sectional view of a state before inserting a disc cartridge, and FIG. B is a cross-sectional view of the state after inserting a disc cartridge. FIG.
FIG. 40 shows a third example of a conventional disc recording / reproducing apparatus, in which FIG. A is a cross-sectional view of a state before inserting the disc cartridge, and FIG. B is a cross-sectional view of the state after inserting the disc cartridge. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Disc cartridge, 4 Shutter member, 6 Offset circular arc part, 7 Head insertion port, 9 Center core hole, 10 Guide groove, 11 Center core, 15 Retraction groove, 20, 100, 120, 130 Disc recording / reproducing apparatus (disc storage device), 21, 101, 121, 131 Mechanical chassis, 22 Top cover (exterior cover), 23, 103, 123, 133 Cartridge holder, 24, 104, 124 Slide plate, 28 Cartridge insertion port, 30 Spindle motor (disk drive device), 31 turntable, 34 magnet, 40 holder lift mechanism, 41 coil spring (elastic member), 44a, 44b, 111 guide pin, 48 direction change groove, 45 vertical groove, 51 cam hole, 52 trigger plate, 53 Cam pin, 57 return spring, 58 operation pin, 59 trigger pin, 61 cam lock pin, 64 mode cam, 66 outer peripheral cam surface, 67 cam recess, 68 mode switch, 74 cam drive mechanism, 77 shutter opening mechanism, 78 shutter opening lever, 80 recording Playback mechanism, 81 Rotating actuator, 81b Drive coil, 82 Slider, 89 Magnet, 90 Arm lock pin, 105 Retraction plate, 106 Crank plate, 107 Return spring, 108 Retraction pin, HD hard disk (disc-shaped recording medium)

Claims (16)

A recording medium holder into which the recording medium is inserted;
A recording medium loading device comprising a recording medium loading unit loaded with the recording medium held by the recording medium holder,
The thickness of the recording medium loading apparatus when the recording medium is loaded into the recording medium loading section or discharged from the recording medium loading section is the thickness of the recording medium loading apparatus during recording or reproduction of the recording medium. A holder lift mechanism to make it thicker,
A contact member that is located on the leading end side of the recording medium in the insertion direction in which the recording medium is inserted into the recording medium loading device and that abuts from the leading end side of the recording medium;
When the recording medium is ejected, the holder lift mechanism sets the thickness of the recording medium loading device to be thick, and the abutting member abuts on the leading end side of the recording medium so that the recording medium is the recording medium. A recording medium loading apparatus which is discharged from a medium loading unit. The recording medium loading device according to claim 1,
The recording medium loading apparatus , wherein the holder lift mechanism is arranged on a side surface or a bottom surface of the recording medium holder . The recording medium loading device according to claim 1,
The recording medium loading apparatus, wherein the holder lift mechanism has an automatic loading mechanism that takes in the recording medium from a position where a predetermined amount of the recording medium is inserted and loads the recording medium into the recording medium loading section . The recording medium loading device according to claim 1,
The recording medium loading apparatus according to claim 1, wherein the contact member includes first biasing means for rotating the contact member to contact the recording medium. A recording medium holder into which the recording medium is inserted;
A recording medium loading unit in which the recording medium held by the recording medium holder is loaded;
A recording and / or reproducing device having recording or reproducing means for reading or writing information on the recording medium loaded from the recording medium loading unit,
The thickness of the recording and / or reproducing device when the recording medium is loaded into the recording medium loading unit or ejected from the recording medium loading unit is the recording and / or reproducing thickness at the time of recording or reproducing the recording medium. A holder lift mechanism that is thicker than the thickness of the playback device;
A contact member that is located on the leading end side of the recording medium in the insertion direction in which the recording medium is inserted into the recording medium loading device and that abuts from the leading end side of the recording medium;
When the recording medium is ejected, the holder lift mechanism sets the recording and / or reproducing device to be thick, and the abutting member abuts on the tip side of the recording medium, so that the recording medium A recording and / or reproducing apparatus which is discharged from the recording and / or reproducing apparatus. The recording and / or reproducing apparatus according to claim 5 ,
The recording and / or reproducing apparatus , wherein the holder lift mechanism is arranged on a side surface or a bottom surface of the recording medium holder . The recording and / or reproducing apparatus according to claim 5 ,
The holder lifting mechanism, the recording and / or reproducing and having an automatic loading mechanism for the recording medium is loaded the recording medium in the recording medium loading unit takes in the recording medium from where inserted a predetermined amount apparatus. The recording and / or reproducing apparatus according to claim 5,
The recording and / or reproducing apparatus according to claim 1, wherein the contact member includes first biasing means for rotating the contact member to contact the recording medium. The recording and / or reproducing apparatus according to claim 5 ,
An exterior cover is fixed to the recording medium holder , and the thickness of the recording and / or reproducing device is uniformly expanded and contracted in a direction perpendicular to the insertion direction when the recording medium is loaded or ejected. Recording and / or playback device to perform . The recording and / or reproducing apparatus according to claim 5,
The holder lift mechanism includes a slide plate that slides with respect to the recording medium insertion direction of the recording medium loading unit, and a second biasing unit that biases the slide plate, and recording and / Or playback device. The recording and / or reproducing apparatus according to claim 5 ,
Except when reading or writing the recording or reproducing means is retracted to the outside of the recording medium, the recording and / or reproducing apparatus, characterized in that at the time of reading or writing with a moving means for moving inserted into said recording medium. The recording and / or reproducing apparatus according to claim 5 ,
The guide groove is provided on one side of the recording medium, a recording and a convex portion for preventing erroneous insertion of the recording medium by whether the engagement between the guide groove, characterized in that provided in the recording medium holder / Or playback device. The recording and / or reproducing apparatus according to claim 5 ,
Recording and / or recording apparatus characterized in that a shutter opening means is provided on a side surface of the recording medium holder to swing the recording medium as a trigger when the recording medium is inserted to open a shutter provided on the recording medium. Playback device. The recording and / or reproducing apparatus according to claim 10.
A trigger pin provided on the slide plate; a mode cam having a first cam groove engaged with the trigger pin; and a driving means for supplying a driving force to the mode cam. The mode cam and the slide plate are interlocked. A recording and / or reproducing apparatus, wherein the recording medium is loaded or ejected. The recording and / or reproducing device according to claim 14 ,
The mode cam has a wiring pattern having a predetermined wiring shape and a switch slidably contacted with the wiring pattern, and the recording medium is loaded or ejected based on an electrical signal output by the wiring pattern and the switch. A recording and / or reproducing apparatus characterized by controlling the above . The recording and / or reproducing device according to claim 14 ,
The recording and / or reproducing apparatus , wherein the mode cam is formed of an insulator .

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